Craftsman 919.176730 Owner's Manual
S_FA/RS OWNERS MANUAL MODEL NO. 919.17673g 919.17683 aMPORTANT: Read the Safety Guidelines and AH instructions Carefully Before Operating CRAFTSMAN AiR COMPRESSOR ASSEMBLY OPERATION MAINTENANCE REPAIR PARTS Record in the spaces provided. (1) The model number which can be found on the tabel on the rear of the air tank. (2) The code number which can be found on the foil tabel on the rear of the air tank. (3) The Manufacturers Number (MFG.,.) {ASME Code Compres- sors onty) is located on the metst date plate which is welded onto the backside of the air tank. (This data plate is painted the same cotor as the tank.) (4) The Motor Manufacturers name which is mocated on the motor tabel or specification plate. (5) The Motor Mfg. number- atso _ocsted on the motor _abel or specifF cation plate, Retain these numbers for future reference. Model No Code No ............................................................. Mfg. No, Motor Mfg. Name Motor Mfg. No Sears, Roebuck and Coo, Chicago, IL 60684 U.S.A. SI-30-14-4-D 6/89
TABLE OF CONTENTS Page .................................................................. 3 SAFETY GU_DEUNES ........................................................ 3 WARNING CHART ............................................................. 3 SPECIFICATION CHART ...................................................... 5 GLOSSARY .................................................................... 5 ACCESSORIES FOR USE WiTH SEARS AIR COMPRESSORS ............. ¢ GENERAL mNFORMATHON .................................................... 6 DESCRIPTION OF OPERATION .............................................. 6 ASSEMBLY _NSTRUCTNONS .................................................. 7 Items You Witt Need to Assemble Your Compressor ................................ 7 Installing Handle .............................................................. 7 Installing Rubber Foot Strip and Wheels .......................................... 8 hstalling Tank Pressure Gauges ................................................. 8 Installing Regulator ............................................................ 8 9NSTALLATmON AND BREAKqN PROCEDURES ............................. 8 Location of Air Compressor ..................................................... 8 Extension Cords .............................................................. 8 Lubrication and Oil ............................................................ 8 Grounding hstructions ......................................................... 9 Break-in Procedures ........................................................... 9 OPERATING PROCEDURES ................................................ 9 MAINTENANCE .............................................................. lo Air Filter - Inspection and Replacement .......................................... 10 Oil - Checking and Changing ................................................... 10 Check Valve - Replacement .................................................... 10 Safety Valve - Inspection ....................................................... 10 Motor ........................................................................ 10 Belt - Replacement ............................................................ 11 Pulley and Flywheel - Alignment ............................................... 11 STORAGE ................................................................... 11 TROUBLESHOOTING GUIDE ................................................. 11 A_R COMPRESSOR DIAGRAM ............................................... 14 Parts List .................................................................... 16 COMPRESSOR PUMP DIAGRAM ............................................ 15 Parts List .................................................................... ! 7 HOW TO ORDER REPAIR PARTS ............................................ 18
FULL ONE YEAR WARRANTY ON COMPRESSORS if this air compressor fans due to a defect in material or workmanship within one year from the date of purchase, return it to the nearest Sears Service Center/Department throughout the United States and Sears wiii repair it, free of charge. If this air compressor is used for commercial or rental purposes, the warranty wit! apply for ninety days from the date of purchase_ This warranty gives you specific legal rights and you may have other rights that vary from state to state. Sears, Roebuck and COo, Sears Tower, Dept. 698/7131OR=W, Chicago, IL 60684 SAFETY GUiDELiNES This manual contains information that is important for you to know and understand. This information relates to protecting your safety and preventing equipment problems. To help you recognize this information, we use the following symbols. Please read the manual and pay special attention to sections headed by these symbols. URGENT SAFETY _NFORMATNON- A HAZARD THNr W_LL CAUSE SEmOUS _NJURY OR LOSS OF LIFE Information for preventing damage to equipment. IMPORTANT SAFETY _NFORMATION .- A HAZARD THAT M_GHT CAUSE SERIOUS INJURY OR LOSS OF LIFE, NOTE information that you should pay special atten- tion to. HAZARDS CAN OCCUR _F EQUIPMENT IS NOT USED PROPERLY: PLEASE READ THE FOLLOWING CHART, WHAT TO WHAT COULD HAPPEN HOW TO PREVENT mT LOOK FOR Unsuitable Sobvents Electricity The solvents 1,1,1 - Trichlorethane and Methy- lene Chloride can chemically react with alumi- num used in paint spray guns, paint pumps, etc., and cause an explosion. These solvents can also react with galvanized components and cause corrosion and weakening of parts. This does not affect your air compressor- but it may affect the equipment being used. If the material you intend to spray contains the sol- vents listed at left (read the labei or data sheet), do not usa accessories that contain aluminum or gal- vanized parts. You must either change the material you intend to spray, or usa only stainless steel spray equipment. Your air compressor is powered by electricity. Always unplug the air compressor prior to mainte- Like any other electrically powered device, if it is nance or repair. not used properly it can cause electrical shock. Never use the air compressor outdoors when it is Always plug the cord into an electrical outlet with the specified voltage and adequate fuse 3
WHAT TO LOOK FOR WHAT COULD HAPPEN NOW TO PREVENT }T Hot Parts The compressor head and tubes get hot when Never touch the air compressor head or tubes dar- the air compressor is running. If you touch them, ing or immediately after operation. you can be seriously burned. Flammable It is normal for the motor's electrical contacts to Operate the compressor in well ventiIated areas Vapors spark when the compressor starts or stops. A thatarefreeofgasotine, flammablepaintorsoivent spark can ignite flammable vapors from vapors. gasoline, flammable paints or solvents and if spaying a flammable material - provide ample cause a fire or explosion. ventilation. Never spray in a closed area. There must be a flow of fresh ad at alt times. Compressed Air Compressed air can propel dust, dirt or loose Never point any nozzle or sprayer toward a person particles it comes in contact with. or any part of the body. Always wear safety goggles or glasses when using the air compressor. Always turn the air compressor off and release air pressure from hose before attaching or removing accessories. Moving Parts Toxic 'Vapors Air Tank Too much air pressure applied to air tools or accessories can cause damage or risk of bursting. This compressor cycles automatically when the switch is in the "On-Auto" position. If you attempt repair or maintenance while the com- pressor is operating, or with the switch in the "On-Auto" position, you can expose yourself to moving parts. These moving parts can cause serious injury or damage, if they come into con- tact with you or your clothing. Check the manufacturer's maximum pressure rat- ing for air tools and accessories. Regulator outiet pressure must never exceed the maximum pres- sure rating. It is normal for compressed air to contain toxic or irritating vapors. Such vapors are harmful if inhaled. Always unplug the unit and release air pressure from the tank and any accessories before doing repair or maintenance. Never operate the compressor with the belt guard removed. Certain materials you are spraying (like paint, weed killer, sand or insecticide) can be harmfu! if you inhale them. Modifications to the air compressor can cause the air tank to rupture or explode. Changing the air tank wi!! cause it to weaken. The tank can rupture or exptode. Never directly inhale the compressed air produced by this unit. Read labels and safety data for all materials you spray. Follow alI safety precautions. Use a mask or respirator if there is a chance of inhating toxic sprayed materials. Masks and respirators have timits and will only provide protec- tion against some kinds and limited amounts of toxic material. Read mask and respirator instruc- tions carefully. Consult with a safety expert or industrial hygienist if you are not sure about the use of a certain mask or respirator. Do not adjust, remove or tamper with the safety vatve or pressure switch. If safety valve or pressure switch replacement is necessary, a part with the same pressure rating must be used. For service replacement use only the motors, pul- leys and belts designed as standard service replacement parts as indicated in the parts list. Use of improper parts could cause overloading of your unit and electrical supply. Do not substitute a gas engine for the motor.., this compressor was not designed to be powered by a gasoline engine. Never replace the compressor pump with a differ_ ent model Never increase the compressor pump speed. Never drilt into, weld, or in any way modify the air tank. Do not repair a leaking tank, it must be replaced. Never replace the air tank with a different model or a larger tank. 4
SPEC_FICATION CHART Modem No. 919.176730 9t&176830 Horsepower 3 3 Displacement CFM 11.3 11.3 Bore 2%" 2%" Stroke 2" 2" Voltage-Single Phase !20/240"* 120/240"* Minimum Branch Circuit Requirement !5 amp*** 15 amp*** *Fuse Type Fusetron Fusetron Type "T" Type "T" Air Tank Capacity -Galfons 20 20 ASME Approximate Cut-in Pressure 80 80 Approximate Cut-out Pressure 100 100 SCFM {u 40 psig 8.8 8.8 SCFM (_., 90 psig Z7 7.7 SCFM (t_ 100 psig 7.3 7.3 U.L Listed Yes Yes **These models have dual voltage motors, !20 and 240 volt. They are WIRED FOR 120 VOLT but can be converted to 240 volt operation. Instructions for connecting the motor for operation at 240 volt can be found printed on the inside of the motor cover or on the nameplate of the motor. *A circuit breaker is preferred. Use only a fuse or circuit breaker that is the same rating as the branch circuit the air compressor is operated on. If the air compressor is connected to a circuit protected by fuses, use dual element time delay fuses (Buss Fusetron Type "T" only). These air compressors can be operated on a 15 amp circuit if: 1. Vomtage suppmy to circuit is normat. 2o Circuit is not used to supply any other electrical needs (lights, appliances, etc°} 3. Extension cords comply with specifica- tions in owners manual When converting this model to 240 volt opera= rice, the attached three-prong 120 vo_t pJug must be replaced with a three-prong 240 volt p_ug (purchase locally) or order line cord Part No, SUDL-4044. 4. Circuit is equipped with 15 amp circuit breaker or 15 amp Fusetron Type"T" time demay fuse. If any of the above conditions cannot be met, or if opera- tion of the compressor repeatedly causes interruption of the power it may be necessary to operate it from a 20 amp circuit. It is not necessary to change the cordset if this change is required. GLOSSARY CFM: Cubic feet per minute. SCFM: Standard cubic feet per minute; a unit of meas- ure of air delivery. PSIG: Pounds per square inch gauge; a unit of measure of pressure. ASME: American Society of Mechanical Engineers; made, tested, inspected and registered to meet the stan- dards of the ASME. U.L° Listed: Underwriter Laboratories; Samples of compressor outfits, taken from production, were sub- mitted to U.L and found to comply with their require- ments for design and performance Cut4n Pressure: While the motor is off, air tank pres- sure drops as you continua to use your accessory. When the tank pressure drops to a certain iow level the motor wif! re-start automatically. The low pressure at which the motor automatically re-starts is caIled "cut-in pressure," Cut-Out Pressure: When you turn on your air compres- sor and it begins to run, air pressure in the air tank begins to build. It builds to a certain high pressure before the motor automatically shuts off - protecting your air tank from pressure higher than its capacity, The high pres- sure at which the motor shuts off is called "cut-out pressure." 5
ACCESSORIES FOR USE WiTH SEARS COMPRESSORS The following accessories are available through the current general sales catalog or at fuliqJne Sears stores. ,SPRAY GUNS °BLOW GUNS oAIR CAULKING GUNS oAIR POWERED WASHER GUNS ,SAND BLASTERS °AIR BRUSHES oAIR LINE FILTERS oTIRE AIR CHUCKS .PAINT TANKS oAIR TANKS ⢠INFLATOR KITS oQUICK CONNECTOR SETS (various sizes) oVISCOSIMETER ,AIR PRESSURE REGULATORS oOIL FOG LUBRICATORS ,AIR TOOLS: Sanders Drills Impact wrenches Hammers ,AIR HOSE: 1/4", 5/16" OR 3/8" LD. in various lengths. GENERAL You have purchased an air compressor unit consisting of a 2 cylinder, single stage air compressor pump, an air tank, air hose, wheels, handte, air chuck and associated controls. Your air compressor can be used for operating paint spray guns, air tools, caulking guns, grease guns, air brushes, sandblasters, power washers, inflating tires and plastic toys, spraying weed killers, insecticides, etc. An air line filter is usually required for removal of mois- ture and oil vapor in compressed air when a paint spray gun is used. iNFORMATiON An in-line lubricator is usually required for air tools to prolong toot life. Separate air transformers which combine the functions of air regulation and/or moisture and dirt removal should be used where applicable. These accessories can be purchased from most Sears stores or through the Sears General catatog or Power Toot catalog. VALVE VALVE )RAIN VALVE Air Compressor Pump: To compress air, the pistons move up and down in the cylinders. On the downstroke, air is drawn in through the air intake filter and then through the air intake valves. The exhaust valve remains closed. On the upstroke of the piston, air is compressed. The intake valves close and compressed air is forced out through the exhaust valve, through the outlet tube, through the check vatve and into the air tank. Working air is not available until the compressor has raised air tank pressure above that required at the air outlet. Check Vatve: When the air compressor is operating, the check valve is "open", allowing compressed air to enter the air tank. When the air compressor reaches "cut-out" pressure, the check vaIve "closes", aJlowing air pressure to remain inside the air tank. Pressure Remeaee Valve: The pressure release valve located on the side of the pressure switch, is designed to automatically release compressed air from the com- pressor head and the outlet tube when the air compres- sor reaches "cut-out" pressure or is shut off. If the air is not release& the motor wilt try to start, but will be unable to. The pressure release vatve allows the motor to re- start freely. When the motor stops running, air wilt be heard escaping from the valve for a few seconds. No air should be heard leaking from the valve when the motor is running. Safety Valve: tf the pressure switch does not shut off the air compressor at or near its cut-out pressure setting, the safety valve will protect against high pressure by "pop- ping out" at its factory-.set pressure (slightJy higher than the pressure switch cut-out setting).
Pressure Switch: The pressure switch automatically starts the motor when the sir tank pressure drops below the factory set "cat-in" pressure, it stops the motor when the air tank pressure reaches the factory set "cut-out" pressure. Regumstor: The air pressure coming from the air tank is controlled by the regulator knob. Turn the knob clockwise to increase pressure and counterclockwise to decrease pressure. To avoid minor readjustment after making a change in pressure setting, always approach the desired pressure from a lower pressure. When reducing from a higher to a !ower setting, first reduce to some pressure tess than that desired, then bring up to the desired pressure. Depending on the air requirements of each particular accessory, the outlet regulated air pressure might have to be adjusted while you are operating the accessory. Tank Pressure Gauge: The tank pressure gauge indi- cates the reserve air pressure in the tank. Outlet Pressure Gauge: The outtet pressure gauge indicates the air pressure available at the outlet side of the regulator. This pressure is controfled by the regulator and is always less or equal to the tank pressure. See "Operating Procedures." ASSEMBLY totems You WiN Need To Assemble Your Compressor .16 oz, compressor oil, Sears 9-16426 or SAE 20-20W SF motor oil o pipe thread sealant an adjustable wrench for attaching the pressure regulator o a 9/16" socket or open-end wrench for attaching the wheels and hose adapter ⢠a 7/16" open-end wrench for attaching the air pressure gauges o a 3/16" hex key for installing the plug in the regulator Jnstamling Nandme INSTRUCTIONS BENT TABS SAD_ FIG. 1 OF SADDLE OPEN END OF HANDLE TNE WREELS AND HANDLE DO NOT PRO, VDE ADEQUATE CLEARANCE STAB_UTY OR SUPPORT FOR PULUNG TRE UNiT UP AND DOWN STAIRS OR STEPS= TRE UNIT MUST B£ L_ETED OR PUSNED UP A RAMP° DO NOT UPT TNE UNiT BY THE _IAN_FOLD ASSEMBL'£ THE UNiT CAN BE DAMAGED 1. Insert the open end of the handle under the saddle (Fig. t). Before attaching handle, you may have to pull the open ends of the handle apart so they fit tightly against the side of the saddle. Looking in from the open end of the saddle, position the handle towards the two bent tabs, on the inside waits of the saddle. S!owly push the open ends of the handle onto both tabs at the same time (Fig. 2). Continue pushing the handle into the sad- dle until the holes on the side of the saddle and handle are in line. 2. Guide the straight end of each retaining clip through the saddle hole and both handle holes (Fig. 3). 3. Rotate each retaining clip clockwise and press down until it snaps into place over the putI handle (Fig. 4). 4. If the handle has excessive movement, it is improperly installed. Check the following: A. Are both tabs inside the handle (Step #1)? B. Does each clip pass through both the saddle and handle (Step #2)? OPEN END BENT TAB OF HANDLE (ONE ON EACH SEDE) FHG. 2 FgG. 3 7
GUARD t Jt may be necessary to brace or support one end of the outfit when attaching the wheels because the air compressor will have a tendency to tip. mnstagJiag Rubber Foot Strip and Wheels t. Remove the protective paper strip from the adhesive- backed rubber foot strip. Attach the rubber foot strip to the bottom of the air tank leg, Press firmly into place. (See page 14 key no. 39.) 2. The leg bracket on the underside of the air compres- sor tank has 2 holes on each side for mounting the wheels. Place one shoulder bolt through the hote in a wheel. Next, push the bolt through the LOWER hole of the leg bracket and screw on one hex locking nut. The special locking nut does not turn freely. Tighten the nut firmly until it contacts the leg. See pg. 14. The outfit will set level if the wheels are properly installed. _nataHing Tank Pressure Gauge Apply pipe sealant (not supplied) to the gauge threads and install in the threaded opening in front of the manifold. Refer to photo on pg. 6_ InstatSing Regulator (Top View} PLUG PiPE N_PPLE REGULATOR ADAPTER _._ MAN_= REGULATED FOLD PRESSURE GAUGE NOTE Use a small amount of pipe thread seatant (not supplied} on ali pipe thread joints. Install the regulator on the end of the manifold using the short pipe hippie. The arrow on the bottom of the regulator must point away from the manifold in order for the regulator to function properly'. Next, install the gauge, adapter and plug in the regulator. The ptug is supplied with the regulator. NSTALLATJON AND BREAK= N PROCEDURES Location of the Air Compressor Operate the air compressor in a clean, dry and well ventilated area. The air filter must be kept clear of obstructions which could reduce air delivery of the air compressor. The air compressor should be Iocated at least 12" away from wails OF other obstructions that could interfere with the flow of air through the fan bladed fly- wheel. The air compressor crankcase and head are designed with fins to provide proper cooling. If humidity is high, a Sears air filter can be insta!led on the air outlet adapter to remove excessive moisture, and oil vapor from the air. Closely foilow the instructions packaged with the filter for proper installation. _t must be installed as close as possible to the accessory. Extension Cords To avoid voltage drop and power loss to the motor, use extra air hose instead of an extension cord, tf an extension cord must be used: o use only a 3-wire extension cord that has a 3-blade grounding piug and a 3-slot receptacle that wilt accept the plug on the product. o make sure the extension cord is in good condition. ⢠the extension cord should be no longer than 50 feet. ° the minimum wire size is t2 gauge (AWG}. Sears #9- 83606, 12 gauge x 50' extension cord is available at your local Sears Service Center. (Wire size increases as gauge number decreases. 10 AWG and 8 AWG may also be used. DO NOT USE !4 AWG or 16 AWG.) Lubrication and OH Compressors are shipped without oil Do not attempt to operate this air compressor without first adding oi_ to the crankcaaeo P!ace unit on a levet surface. Remove oil fill plug (Key no. 81, pg. 15) and slowly add a speciat compressor oil such as Sears 9-16426 or SAE 20_20W SF motor oil until it is even with the top of the oi! fill hole. (it must not be aliowed to be Iower than 3/8" - 6 threads down - from the top, at any time.) When ill!rig the crankcase, the oil flows vary slowly. If the oil is added too quickly, it will overflow and appear to be full. Crankcase oiI capacity is 16 fad ounces. Under winter-type conditions use SAE 10W oil. Multi-viscosity oil, 10W 30_ witl teave carbon deposits on critical components reducing performance and com- pressor iife. Reptace oil fill plug. 8
Grounding _nstructions iMPROPER GROUNDING CAN RESULT tN ELECTRICAL SHOCK= IN THE EVENT OF A SHORT CIRCUIT, GROUNDING REDUCES THE RiSK OF SHOCK BY PROViDiNG AN ESCAPE WiRE FOR THE ELECTRIC CUR- RENT, THIS A_R COMPRESSOR MUST BE PROPERLY GROUNDED. 1. The air compressor is equipped with a cord having a grounding wire and an appropriate grounding plug= The plug must be used with an outlet that has been installed and grounded in accordance with alt local codes and ordinances. The outlet must have the same configuration as the plug. DO NOT USE AN ADAPTER. 2. Do not modify the plug that has been provided. If it does not fit the available outlet, the correct outlet should be installed by a qualified electrician. 3. Inspect the plug and cord before each use. Do not use the compressor if there are signs of damage. If these grounding instructions are not completely understood, or if you are not sure your compressor is property grounded, have the installation checked by a qualified electrician. OUTLET PLUG Terminal G_'ounding ]/ Pin // Breakqn Procedures Serious damage may result if the following break=in instructions are Rot closely followed. This procedure is required only once, before the air com- pressor is put into service. ELECTRICAL SHOCK HAZARD. WHEN REPAmRING OR REPLACING THE CORD OR PLUG, KEEP THE GROUNDING W_RE SEPA- RATE FROM THE CURRENToCARRYmNG W_RES. NEVER CONNECT THE GROUND- gNG W_RE TO A FLAT BLADE PLUG TER= MINAL, (THE GROUNDING W_RE HAS INSULATION WITH AN OUTER SURFACE THAT IS GREEN - WSTH OR W_THOUT YEL- LOW STRIPES.) 1. Before attaching an air hose or accessory', make sure the pressure switch lever is in the "OFF" posi- tion. Close the air regulator outlet by turning it counter-clockwise. TOO MUCH AmR PRESSURE CAUSES A HAZARDOUS R_SK OF BURSTING, CARE_ FULLY FOLLOW STEPS 3 THROUGH !2 EACH TmME THE COMPRESSOR IS USED, 1. Set the pressure switch lever to the "OFF" position. 2, Plug the power cord into the correct branch circuit receptacle. 3. l_drn the regulator clockwise opening it fully, to prevent air pressure build-up in the tank. 4. Move the pressure switch lever to "ON/AUTO". The compressor witl start. 5. Run the compressor for 30 minutes. Make sure the regulator is open and there is no tank pressure build- up. 6. After 30 minutes, close the regulator by turning it counter-clockwise. The air receiver wilt filt to cut-out pressure and the motor wilt stop. The compressor is now ready for use. OPERATING PROCEDURES 4, ]_Jrn the pressure switch lever to the "ON-AUTO" position and allow tank pressure to build. The motor win stop when tank pressure reaches cut-out pressure. 5. Open the regulator by turning it clockwise. Adjust the regulator to the correct pressure setting. (See pg. 6 for regulator instructions.) Your outfit is ready for use. 3. Check the manufacturer's maximum pressure rating for air tools and accessories. The reguator outlet pressure must never exceed the maximum pressure rating. Compressed air from the outfit may certain water condensation and oH mist. Do not spray uRfi_tered air at aR item that coutd be damaged. Some air operated toots or devices may require filtered air, Read the When You Are F_nished: 6. Set the pressure switch lever to "OFF". 7. qFdrn the regulator counter-clockwise and set the out- let pressure to zero. 8. Remove the air tool or accessory. 9. Open the regulator and allow the air to sowly bleed from the tank. C_ose the regulator when tank pres _ sure is approximately 20 psi. 10. Drain water from air tank. s
NOTE W'_TER WILL CONDENSE IN THE A_R TANK. mF NOT DRAtNED_ WATER W_LL CORRODE AND WEAKEN THE AR TANK; CAUSING A R_SK OF AIR TANK RUPTUREo 1!. With tank pressure at approximately 20 psi., open the drain cock (key 43, pg. 14) and atlow moisture to drain. Turn drain T-handle counterclockwise to open. The drain cock is located under the outfit near the teg without the wheefs. (See pg. 6.) If the drain cock valve is plugged, release all air pressure. The valve can then be removed, Scleaned, and reinstalled. 12. After the water has been drained, close the drain cock (turn clockwise). The air compressor can now be stored. MAINTENANCE UNF CYCLES AUTOMATtCALE#f WHEN POWER _S ON. WHEN DOING MA_NTENANCE_ YOU MAY BE EXPOSED TO VOLTAGE SOURCES, COMPRESSED A_R OR MOVING PAR'TS. PERSONAL _NJURtES CAN OCCUR. BEFORE PERFORMING MAINTENANCE OR REPAIR UNPLUG THE UNiT AND BLEED OFF ALL A_R TANK PRESSBREo NEVER OPERATE THE UNiT WITH THE BELT GUARD REMOVED° Air Compressor A clean air compressor runs cooler and provides longer service. Clean or blow off fins and any other parts of the air compressor that collect dust or dirt. Do not place rags, containers or other material on or against the venti- lation openings in the belt guard. Adequate ventilation is necessary to maintain proper air compressor operating temperature. Air Filter - _nspection and Repmacement NOTE Keep the air filter clean at afl times. Do not oper- ate the compressor with the air filter removed. A dirty air filter will not allow the compressor to operate at full capacity. Before you use the compressor, check the air filter to be sure it is clean. If it is dirty, repIace it with a new filter. The filter may be removed by using a pair of needle nosed pliers or a screwdriver. Pull or pry out the old filter. Push in the new air filter. OH - Checking and Changing Overfilling with oim win cause premature compressor failure. Do not overfill. Check oil tevel in the crankcase daily. Remove the oil fill plug (Key no. 81, pg. 15). The oil level should be even with the top of the fill hole and must not be allowed to be lower than %" from the top (6 threads) at any time. It is recommended that the oil be changed after every 100 hours of operation. To drain the oiI, remove the oil drain ptug and collect the oil in a suitable container. Be sure to replace the ptug securely before adding new oil. Use a special compressor oil such as Sears 9q6426 or SAE 20-20W SF motor oil. (Crankcase oil capacity is 16 fluid ounces.) Under extreme winter conditions use SAE 10W. Multi-viscosity oil (10W30) will leave carbon deposits on critical components which wil! reduce per- formance and compressor life. Check Valve - Replacement 1. Release air pressure from the air tank. 2. Loosen the top and bottom tube nuts and remove the outlet tube. 3. Unscrew the check valve (turn counter-clockwise) using socket wrench. 4. Check that the valve disc moves freely and that the spring holds the disc in the upper, closed position. The check valve may be cleaned with a solvent such as paint thinner or carburetor cleaner. 5. Apply sealant to the check valve threads. Reinstall the check valve (turn clockwise). Do not over tighten. 6. Replace the outlet tube and tighten top and bottom tube nuts. Safety Valve - _nspection [ _F THE SAFETY VALVE DOES NOT WORK PROPERLY OVERoPRESSUR_ZAT_ON MAY OCCUR, CAUSING A_R TANK RUPTURE OR EXPLOSION. OCCASIONALLY PULL TNE R_NG ON THE SAFETY VALVE TO MAKE SURE THAT TNE SAFETY VALVE OPEN° ATES FREELY. _F THE VALVE _S STUCK OR DOES NOT OPERATE SMOOTHLY, IT MUST BE REPLACED W_TN A VALVE HAVING THE SAME PRESBURE R_[_NG_ Motor The motor has a manual thermal overload protector. If the motor overheats for any reason, the overload protec- tor will shut off the motor. The motor must be altowed to cool down before restarting. _Jrn the unit off. To restart, depress the red reset button located on the end of the motor and turn the unit on. 0
NOTE If the overload protector shuts the motor off fre- quently, check for a possible voltage problem Low voltage can also be suspected when: 1. the motor does not get up to fulI power or speed; 2. fuses blow out when the motor is started. 3. lights dim when motor is started, and remain dim while it is running. 2. Remove the front of the belt guard by disengaging the snaps. Insert a flat bladed screwdriver at each snap Iocation and pry the bettguard apart. 3. The motor is mounted on a special base, By ioosenin9 the wing nut at the motor hold down ptate, the motor can be tilted to allow for easy removal of the belt. 4. Remove belt and replace. NOTE The belt must be centered over the grooves on the flywheel and motor pulley. Be_t - Replacement 5. Tighten the wing nut until it makes contact with the washer plus one additional turn. 6. Replace the front of the beltguard. To Adjust Be_t Tension: Tighten the wing nut until it makes contact with the washer plus one additional turn. SERIOUS _NJURY OR DAMAGE MAY OCCUR _F PARTS OF THE BODY OR LOOSE _TEMS GET CAUGHT IN MOVING PARTS. NEVER OPERATE THE OUTFIT WITH THE BELT GUARD REMOVED, THE BELT GUARD SHOULD BE REMOVED ONLY WHEN THE CO_4PBESSOB _S UNPLUGGED, To Replace Belt: f. Unplug compressor. Pulley and Flywheem = Alignment The compressor flywheM and motor puIley grooves must be in-line (in the same plane) within 1/32" to assure belt alignment within grooves. To check alignment, dis- connect electrical power and remove the beltguard. Place a straightedge against the outside of the flywheel and measure the distance from it to the nearest groove. Alignment is achieved when the other end of the straigh- tedge is within 1/32" of the measured dimension at the pulley grooves. STORAGE Before You Store The Air Compreseor: 1. Review the "Maintenance" section on the preceding page and perform maintenance as necessary. Drain the water from the air tank. 2. Set the OFF/AUTO switch to the "OFF" position, and unplug the unit. 3. Remove the air tool or accessory. 4. Protect the electrical cord and air hose from damage (such as being stepped on or run over}. Wind them loosely around the outfit handte, 5. Store the compressor in a clean and dry location. TROUBLESHOOTING GUIDE PERFORMING REPAIRS MAY EXPOSE VOLTAGE SOURCES_ MOVING PARTS_ OR COMPRESSED A_R SOURCES PERSONAL _NJURY MAY OCCUR. PRIOR TO ATTE_IPT_NG ANY REPAIRS THE COMPRESSOR MUST BE UNPLUGGED, AND A_R TANK PRESSURE REUEVED° NEVER OPERATE THE UNiT W_TN THE BELT GUARD REMOVED° PROBLEM CAUSE CORRECTION Excessive tank pressure - safety valve pops off. Pressure switch does not shut off motor when compressor reaches "cut-out" pressure. Move the pressure switch lever to the "OFF" posi- tion. If the outfit doesn't shut off, and the ebctricai contacts are welded together, replace the pressure switch. If the contacts are good, check to see if the pin in the bottom of the pressure retief vane is stuck, if it does not move freely, reptace the valve. Pressure switch "cut-out" too Return the outfit to the Sears Service Center to high. check and adjust or replace switch. Air leaks at fittings "Tube fittings are not tight enough. Tighten fittings where air can be heard escaping. Check fittings with soapy water solution. DO NOT OVER-TIGHTEN.
TROUBLESHOOTING GUIDE (continued) PROBLEM CAUSE CORRECTION Air leaks at check valve Defective or dirty check valve. A defective check valve results in a constant air teak at the pressure reiease valve when there is pressure in the tank and the compressor is shut off. Remove and clean, OF replace check valve. DO NOT OVER-TiGHTEN. Air leaks at pressure Defective pressure switch Remove and replace the release valve. switch release valve release valve. Air leaks in air tank Defective check valve. A defective check valve results in a constant air leak at the pressure release valve when there is pressure in the tank and the compressor is shut off. Remove and clean, or replace check valve. DO NOT OVER-TIGHTEN. Defective air tank. Air tank must be replaced. Do not repair the leak. DO NOT DRILL mNTO, WELD, OR OTHER- W_SE MODIFY AIR TANK OR mT WILL WEAKEN. Air leaks from safety valve Possible defect in safety valve Operate safety valve manually by pulling on ring. ff valve still leaks, it should be replaced. Regulator knob - continu- Dirty or damaged regulator inter- Clean or replace regulator, or internal parts. ous air leak. Regulator will nat parts. not shut-off at air outlet. Knocking noise Defective check valve. Remove and clean, or replace. Loose pulley. Tighten pulley set screw, (70-80 In.-Lbs.). Low oil level. Maintain prescribed oil level. Add oil Loose flywheel. Tighten screw. 15 to 20 ft. lbs. Loose compressor mounting screws. Check screws. Tighten as required, (15-20 Ft.- Lbs.). Loose belt. Tighten wing nut on motor mount until it contacts the washer, plus one more turn. Compressor is not supply- ing enough air to operate accessories. Carbon build up. Prolonged excessive use of air. Compressor is not large enough for air requirement. Remove the head and valve plate. Clean the valve plate and the top of the piston. (Be sure carbon does not fall into the cylinder.) Reassemble using new gaskets and torque screws, 25 to 30 ft. Ibs. Decrease amount of air usage. Check the accessory air requirement, ff it is higher than the SCFM or pressure supplied by your air compressor, you need a larger compressor. Restricted air intake filter. Clean or replace air intake filter. Do not operate the compressor in the paint spray or sand blasting area. 2 Hole in hose. Check valve restricted. Air leaks. Check and replace. Remove and ctean, or replace. Tighten fittings. (See Air Leaks section of Troubleshooting Guide, Pg. tl.)
PROBLEM Excessive belt wear (continued) CORRECTION Adjust tension. See Belt Replacement, pg, 11. Adjust tension. See Belt Replacement, pg. 11. Check for worn keyway or pulley bore. Also check for bent motor shaft. Replace parts if necessary. TROUBLESHOOTING GUIDE CAUSE Loose belt, Tight belt. Loose pulley_ Pulley misalignment. Motor pulley and flywheel must be in line within 1/32". Squealing sound Loose belt. Adjust tension. See Belt Replacement, pg. 11. There is no oii in the compressor. Add oi!. Motor wilt not run Motor overload protection switch Let motor cool off end reset switch by pressing the has tripped, red button located on the end of the motor. Pressure reading on the regulated pressure gauge drops when an accessory is used. Possible defective capacitor. Return to Sears Service Center for inspection or replacement if necessary. Tank pressure exceeds pressure switch "cut-in" pressure. Motor will start automatically when tank pressure drops below "cut-in" pressure of pressure switch. Wrong gauge wire or length of extension cord, Check for proper gauge wire and cord length. Check valve stuck open. Remove and clean, or replace. DO NOT OVER- TIGHTEN. Loose electrical connections. Unplug the compressor. Check wiring connection inside pressure switch and motor terminal box area. Paint spray on internal motor parts. Have checked at Sears Service Center. Do not operate the compressor in the spray area. Possible defective motor. Have checked at a local Sears Service Center. Fuse blown, circuit breaker tripped. 1. Check fuse box for blown fuse and replace if necessary. Re-set circuit breaker. Do not use a fuse or circuit breaker with higher rating than that specified for your particular branch circuit. 2. Check for proper fuse; onty Buss Fusetron Type "T" fuses are acceptable. 3. Check for low voltage conditions and/or proper extension cord. 4. Remove check valve and clean or replace if it is stuck open or closed. 5. Disconnect the other electrical appliances from circuit or operate the compressor on its own branch circuit. Pressure release valve on pres- Bleed the line by pushing the lever on the pressure sure switch has not unloaded switch to the "OFF" position; if valve does not head pressure, open, replace it. It is normal for "some" pressure If there is an excessive amount of pressure drop drop to occur, when the accessory is used, adjust the regulator following the instructions on pg. 6. Note Adjust the regulated pressure under flow conditions (while the accessory is being used).
AIR COMPRESSOR DtAGRAM (view from back} 54 53 52 5O 48 2 55 \ \ "58 !8 34 I7 14 12 "43 51A _J 35 (Model No. shown here) 42 4! (See pg. 8, Step 2 for proper wheel placement and assembly) 14
COMPRESSOR PUMP D_AGRAM 89 82 83 (od "Ill p ugl / / / _o_, dra,n plug} _5
r PARTS LiST KEY NO PART NUMBER f CAC=322 2 CAC_323 3 SSF-8113-ZN 4 CAC-327 5 CACo4OG3-1 6 9=16279 7 265-18 8 SSF-935 9 LA-1779 10 STD575051 11 STD575050 12 CAC-317 13 TIA-4325 TIA-4125 14 C-GA-345 15 STD575026 16 STD575025 17 CAC-387 18 CAC-1012 t 9 CAC-4296 20 H-2099 21 SS-2071 22 CAC-1913 23 SSo3222-CD 24 CAC-366 25 SUDL-403-1 26 SSW-7367 27 LA-1531-1 28 CAC=4220-1 28A KK-4315 29 CAC=4215-1 30 SS=1287 31 CAC=437 32 SSF-928 33 STD54163t 34 LA-1535 35 CACo320 36 LA-1814 37 LA-1932-2 LA-1933 38 CAC-1059 39 SUDL-6=I 40 CAC=60 41 CAC-4293 42 STD541437 43 SS-2797 44 Not Available 45 TA_4099 TA=4072 45 LA-1555 47 CAC-287 48 LA-181 f-1 49 MO=8340 50 C-PU-2885 51 SS-391 5t A LA=f 978 52 STD580104 53 SSF=986 54 LA=1931 DESCRIPTION Belt guard, outside Belt guard, inside Lock nut Bracket Compressor pump assembly includes Key No. 59 through 93 inclusive. intake filter - package of 2 (1 used) Filter retainer Screw, #8-32 x 3/8" (2 used) Hot Surface Labem (2 used) Ferrule (2 used for 1/2" O.D. Tube) Nut (2 used for 1/2" O.D. Tube) Outlet tube Safety valve (model 919.176730) Safety valve ASME (model 919.17683D) Pressure gauge (2 used) Ferrule (2 used for 1/4" O.D. Tube) Nut (2 used for 1/4" O.D. Tube) Pressure release tube Hold down p|ate Pressure regulator Adapter Nipple Held down screw Pipe plug Manifold Cord assembty Strain relief (2 used) Label Pressure switch Pressure release valve and mounting nut (included with #28) Motor cord assembly Nipple Check valve Screw 5/16"-18 à 7/8" (4 used) Wing nut Warning labe_ Handle Periodic maintenance mabel Specification label (Model 919.176730) Specification |abel (Model 919.176830) Retaining clip (2 used) Rubber foot strip Shoulder bolt (2 used) 8" wheel (2 used) Lock nut (2 used) Drain cock Code number label Air tank, 20 gallon (Modei 919.176730) Air tank, 26 gallon ASME (Model 919.176630) Labe_ - 12gV wired Motor pin Sears Craftsman mabeJ Motor, 3 HP Motor pulley Set screw Drain Tank Daily LabeB Motor shaft key (3/16" à 3/16" à 1¼") Self-t_pping screw (2 used) Label
55 C-BT-222 56 SSN°1619oZN 57 SSN=56=ZN 58 CAC-1011 59 SSFo6627 60 CAC-293 61 SSF-955 62 SS=8553 ($3 SSP=940t _/ 84 CAC=291 O 65 265-25 66 SSF-9821 67 CACo294 68 265=196 69 CA0-289 70 CAC-54_1 71 CAC-56 ,Q= 72 CAC-58 ,_ 73 CAC=57 74 CAC-55 75 265ol 9 76 CAC=207 77 265o410 78 SSF-927 79 CAC-51 80 265=41 81 SSP-1413 82 SSF=925 83 265-3 84 265-16 85 CAC=373 88 265-23 87 265-13 88 265-9 89 265=2 90 SSN=1014=ZN 91 STD523107 92 265=11 t 93 265=5 Pomy=V=Belt, 38" long Lock washer Fiat washer E_aetomer spring Stud 3/8" à 36 both ends (2 used} Head Screw, 3/8"=16 à 1=1/2" t4 used) Adapter Adapter Head gasket intake flapper valve = squcre corners I (2 used on head) Screw #5=40 à %" (8 used) Restrictor plate f2 used) EÃhcust fgspper valve o beveled corners I_ (2 used on veJve p_ate) Valve plate Valve plate gasket Compression ring (4 used) Oi_ ring (4 used) OiJ ring expsnder (2 used) Piston (2 used) Piston pin (2 used) Piston pin plug (4 used) Connecting rod aasembty (2 used) includes two SSFo927 screws, Key #78. Screw, 1/4"-20 x %t/8" !4 used) Crankcase and cyiinder Needle bearing Pipe pmug (2 used) Screw, 1/4"-20 x 7/8" (] 2 oaed) Base Base gasket Crankshaft Needle bearing End ptate gasket End PIste Flywheel BelleviHe washer Cap screw Seal Vent filter 9-16259 9-16153 SI-30_14o4-D NOTmLLUSTRATED Airchuck Airhose assembly(1/4"LD.Ã15') Owners manuat _= Key No. 71, 72 and 73, only available in Ring Kit KK-4313 J Key No. 6, 84, 70, 84, 87, 92 and 93, available as individuaD parts end part of Gasket Kit KK=4312-2_ O Key No. 65, 65 and 68, on{y svaitabJe in Veive Kit KK-4275.
OWNERS MANUAL SERVICE MODEL NO. 919.176730 919.176830 HOW TO ORDER REPAIR PARTS CRAFTSMAN AIR COMPRESSOR Now that you have purchased your Sears Air Compressor, should a need ever exist for repair parts or service, simply contact any Sears Service Center and most Sears, Roebuck and Co. stores. Be sure to provide all pertinent facts when you call or visit. The model number of your Sears Air Compressor is 919 This number can be found on the maintenance label which is located on the rear of the air tank. WHEN ORDERING REPAIR PARTS, ALWAYS GIVE THE FOLLOWING INFORMATION: ⢠PART NUMBER ⢠PART DESCRIPTION , MODEL NUMBER ⢠NAME OF ITEM If service or repair parts are required for the motor, supply all motor nameplate information including manufacturers name. All parts listed may be ordered from any Sears Service Center and most Sears stores. If the parts you need are not stocked locally, your order will be elec- tronically transmitted to a Sears Repair Parts Distribution Center for handling. SI-30-14-4-D 6/89 Sears, Roebuck and Co., Chicago, _L 60684 U.SoAo Printed in U.S.A,
TABLE OF CONTENTS Page .................................................................. 3 SAFETY GU_DEUNES ........................................................ 3 WARNING CHART ............................................................. 3 SPECIFICATION CHART ...................................................... 5 GLOSSARY .................................................................... 5 ACCESSORIES FOR USE WiTH SEARS AIR COMPRESSORS ............. ¢ GENERAL mNFORMATHON .................................................... 6 DESCRIPTION OF OPERATION .............................................. 6 ASSEMBLY _NSTRUCTNONS .................................................. 7 Items You Witt Need to Assemble Your Compressor ................................ 7 Installing Handle .............................................................. 7 Installing Rubber Foot Strip and Wheels .......................................... 8 hstalling Tank Pressure Gauges ................................................. 8 Installing Regulator ............................................................ 8 9NSTALLATmON AND BREAKqN PROCEDURES ............................. 8 Location of Air Compressor ..................................................... 8 Extension Cords .............................................................. 8 Lubrication and Oil ............................................................ 8 Grounding hstructions ......................................................... 9 Break-in Procedures ........................................................... 9 OPERATING PROCEDURES ................................................ 9 MAINTENANCE .............................................................. lo Air Filter - Inspection and Replacement .......................................... 10 Oil - Checking and Changing ................................................... 10 Check Valve - Replacement .................................................... 10 Safety Valve - Inspection ....................................................... 10 Motor ........................................................................ 10 Belt - Replacement ............................................................ 11 Pulley and Flywheel - Alignment ............................................... 11 STORAGE ................................................................... 11 TROUBLESHOOTING GUIDE ................................................. 11 A_R COMPRESSOR DIAGRAM ............................................... 14 Parts List .................................................................... 16 COMPRESSOR PUMP DIAGRAM ............................................ 15 Parts List .................................................................... ! 7 HOW TO ORDER REPAIR PARTS ............................................ 18
FULL ONE YEAR WARRANTY ON COMPRESSORS if this air compressor fans due to a defect in material or workmanship within one year from the date of purchase, return it to the nearest Sears Service Center/Department throughout the United States and Sears wiii repair it, free of charge. If this air compressor is used for commercial or rental purposes, the warranty wit! apply for ninety days from the date of purchase_ This warranty gives you specific legal rights and you may have other rights that vary from state to state. Sears, Roebuck and COo, Sears Tower, Dept. 698/7131OR=W, Chicago, IL 60684 SAFETY GUiDELiNES This manual contains information that is important for you to know and understand. This information relates to protecting your safety and preventing equipment problems. To help you recognize this information, we use the following symbols. Please read the manual and pay special attention to sections headed by these symbols. URGENT SAFETY _NFORMATNON- A HAZARD THNr W_LL CAUSE SEmOUS _NJURY OR LOSS OF LIFE Information for preventing damage to equipment. IMPORTANT SAFETY _NFORMATION .- A HAZARD THAT M_GHT CAUSE SERIOUS INJURY OR LOSS OF LIFE, NOTE information that you should pay special atten- tion to. HAZARDS CAN OCCUR _F EQUIPMENT IS NOT USED PROPERLY: PLEASE READ THE FOLLOWING CHART, WHAT TO WHAT COULD HAPPEN HOW TO PREVENT mT LOOK FOR Unsuitable Sobvents Electricity The solvents 1,1,1 - Trichlorethane and Methy- lene Chloride can chemically react with alumi- num used in paint spray guns, paint pumps, etc., and cause an explosion. These solvents can also react with galvanized components and cause corrosion and weakening of parts. This does not affect your air compressor- but it may affect the equipment being used. If the material you intend to spray contains the sol- vents listed at left (read the labei or data sheet), do not usa accessories that contain aluminum or gal- vanized parts. You must either change the material you intend to spray, or usa only stainless steel spray equipment. Your air compressor is powered by electricity. Always unplug the air compressor prior to mainte- Like any other electrically powered device, if it is nance or repair. not used properly it can cause electrical shock. Never use the air compressor outdoors when it is Always plug the cord into an electrical outlet with the specified voltage and adequate fuse 3
WHAT TO LOOK FOR WHAT COULD HAPPEN NOW TO PREVENT }T Hot Parts The compressor head and tubes get hot when Never touch the air compressor head or tubes dar- the air compressor is running. If you touch them, ing or immediately after operation. you can be seriously burned. Flammable It is normal for the motor's electrical contacts to Operate the compressor in well ventiIated areas Vapors spark when the compressor starts or stops. A thatarefreeofgasotine, flammablepaintorsoivent spark can ignite flammable vapors from vapors. gasoline, flammable paints or solvents and if spaying a flammable material - provide ample cause a fire or explosion. ventilation. Never spray in a closed area. There must be a flow of fresh ad at alt times. Compressed Air Compressed air can propel dust, dirt or loose Never point any nozzle or sprayer toward a person particles it comes in contact with. or any part of the body. Always wear safety goggles or glasses when using the air compressor. Always turn the air compressor off and release air pressure from hose before attaching or removing accessories. Moving Parts Toxic 'Vapors Air Tank Too much air pressure applied to air tools or accessories can cause damage or risk of bursting. This compressor cycles automatically when the switch is in the "On-Auto" position. If you attempt repair or maintenance while the com- pressor is operating, or with the switch in the "On-Auto" position, you can expose yourself to moving parts. These moving parts can cause serious injury or damage, if they come into con- tact with you or your clothing. Check the manufacturer's maximum pressure rat- ing for air tools and accessories. Regulator outiet pressure must never exceed the maximum pres- sure rating. It is normal for compressed air to contain toxic or irritating vapors. Such vapors are harmful if inhaled. Always unplug the unit and release air pressure from the tank and any accessories before doing repair or maintenance. Never operate the compressor with the belt guard removed. Certain materials you are spraying (like paint, weed killer, sand or insecticide) can be harmfu! if you inhale them. Modifications to the air compressor can cause the air tank to rupture or explode. Changing the air tank wi!! cause it to weaken. The tank can rupture or exptode. Never directly inhale the compressed air produced by this unit. Read labels and safety data for all materials you spray. Follow alI safety precautions. Use a mask or respirator if there is a chance of inhating toxic sprayed materials. Masks and respirators have timits and will only provide protec- tion against some kinds and limited amounts of toxic material. Read mask and respirator instruc- tions carefully. Consult with a safety expert or industrial hygienist if you are not sure about the use of a certain mask or respirator. Do not adjust, remove or tamper with the safety vatve or pressure switch. If safety valve or pressure switch replacement is necessary, a part with the same pressure rating must be used. For service replacement use only the motors, pul- leys and belts designed as standard service replacement parts as indicated in the parts list. Use of improper parts could cause overloading of your unit and electrical supply. Do not substitute a gas engine for the motor.., this compressor was not designed to be powered by a gasoline engine. Never replace the compressor pump with a differ_ ent model Never increase the compressor pump speed. Never drilt into, weld, or in any way modify the air tank. Do not repair a leaking tank, it must be replaced. Never replace the air tank with a different model or a larger tank. 4
SPEC_FICATION CHART Modem No. 919.176730 9t&176830 Horsepower 3 3 Displacement CFM 11.3 11.3 Bore 2%" 2%" Stroke 2" 2" Voltage-Single Phase !20/240"* 120/240"* Minimum Branch Circuit Requirement !5 amp*** 15 amp*** *Fuse Type Fusetron Fusetron Type "T" Type "T" Air Tank Capacity -Galfons 20 20 ASME Approximate Cut-in Pressure 80 80 Approximate Cut-out Pressure 100 100 SCFM {u 40 psig 8.8 8.8 SCFM (_., 90 psig Z7 7.7 SCFM (t_ 100 psig 7.3 7.3 U.L Listed Yes Yes **These models have dual voltage motors, !20 and 240 volt. They are WIRED FOR 120 VOLT but can be converted to 240 volt operation. Instructions for connecting the motor for operation at 240 volt can be found printed on the inside of the motor cover or on the nameplate of the motor. *A circuit breaker is preferred. Use only a fuse or circuit breaker that is the same rating as the branch circuit the air compressor is operated on. If the air compressor is connected to a circuit protected by fuses, use dual element time delay fuses (Buss Fusetron Type "T" only). These air compressors can be operated on a 15 amp circuit if: 1. Vomtage suppmy to circuit is normat. 2o Circuit is not used to supply any other electrical needs (lights, appliances, etc°} 3. Extension cords comply with specifica- tions in owners manual When converting this model to 240 volt opera= rice, the attached three-prong 120 vo_t pJug must be replaced with a three-prong 240 volt p_ug (purchase locally) or order line cord Part No, SUDL-4044. 4. Circuit is equipped with 15 amp circuit breaker or 15 amp Fusetron Type"T" time demay fuse. If any of the above conditions cannot be met, or if opera- tion of the compressor repeatedly causes interruption of the power it may be necessary to operate it from a 20 amp circuit. It is not necessary to change the cordset if this change is required. GLOSSARY CFM: Cubic feet per minute. SCFM: Standard cubic feet per minute; a unit of meas- ure of air delivery. PSIG: Pounds per square inch gauge; a unit of measure of pressure. ASME: American Society of Mechanical Engineers; made, tested, inspected and registered to meet the stan- dards of the ASME. U.L° Listed: Underwriter Laboratories; Samples of compressor outfits, taken from production, were sub- mitted to U.L and found to comply with their require- ments for design and performance Cut4n Pressure: While the motor is off, air tank pres- sure drops as you continua to use your accessory. When the tank pressure drops to a certain iow level the motor wif! re-start automatically. The low pressure at which the motor automatically re-starts is caIled "cut-in pressure," Cut-Out Pressure: When you turn on your air compres- sor and it begins to run, air pressure in the air tank begins to build. It builds to a certain high pressure before the motor automatically shuts off - protecting your air tank from pressure higher than its capacity, The high pres- sure at which the motor shuts off is called "cut-out pressure." 5
ACCESSORIES FOR USE WiTH SEARS COMPRESSORS The following accessories are available through the current general sales catalog or at fuliqJne Sears stores. ,SPRAY GUNS °BLOW GUNS oAIR CAULKING GUNS oAIR POWERED WASHER GUNS ,SAND BLASTERS °AIR BRUSHES oAIR LINE FILTERS oTIRE AIR CHUCKS .PAINT TANKS oAIR TANKS ⢠INFLATOR KITS oQUICK CONNECTOR SETS (various sizes) oVISCOSIMETER ,AIR PRESSURE REGULATORS oOIL FOG LUBRICATORS ,AIR TOOLS: Sanders Drills Impact wrenches Hammers ,AIR HOSE: 1/4", 5/16" OR 3/8" LD. in various lengths. GENERAL You have purchased an air compressor unit consisting of a 2 cylinder, single stage air compressor pump, an air tank, air hose, wheels, handte, air chuck and associated controls. Your air compressor can be used for operating paint spray guns, air tools, caulking guns, grease guns, air brushes, sandblasters, power washers, inflating tires and plastic toys, spraying weed killers, insecticides, etc. An air line filter is usually required for removal of mois- ture and oil vapor in compressed air when a paint spray gun is used. iNFORMATiON An in-line lubricator is usually required for air tools to prolong toot life. Separate air transformers which combine the functions of air regulation and/or moisture and dirt removal should be used where applicable. These accessories can be purchased from most Sears stores or through the Sears General catatog or Power Toot catalog. VALVE VALVE )RAIN VALVE Air Compressor Pump: To compress air, the pistons move up and down in the cylinders. On the downstroke, air is drawn in through the air intake filter and then through the air intake valves. The exhaust valve remains closed. On the upstroke of the piston, air is compressed. The intake valves close and compressed air is forced out through the exhaust valve, through the outlet tube, through the check vatve and into the air tank. Working air is not available until the compressor has raised air tank pressure above that required at the air outlet. Check Vatve: When the air compressor is operating, the check valve is "open", allowing compressed air to enter the air tank. When the air compressor reaches "cut-out" pressure, the check vaIve "closes", aJlowing air pressure to remain inside the air tank. Pressure Remeaee Valve: The pressure release valve located on the side of the pressure switch, is designed to automatically release compressed air from the com- pressor head and the outlet tube when the air compres- sor reaches "cut-out" pressure or is shut off. If the air is not release& the motor wilt try to start, but will be unable to. The pressure release vatve allows the motor to re- start freely. When the motor stops running, air wilt be heard escaping from the valve for a few seconds. No air should be heard leaking from the valve when the motor is running. Safety Valve: tf the pressure switch does not shut off the air compressor at or near its cut-out pressure setting, the safety valve will protect against high pressure by "pop- ping out" at its factory-.set pressure (slightJy higher than the pressure switch cut-out setting).
Pressure Switch: The pressure switch automatically starts the motor when the sir tank pressure drops below the factory set "cat-in" pressure, it stops the motor when the air tank pressure reaches the factory set "cut-out" pressure. Regumstor: The air pressure coming from the air tank is controlled by the regulator knob. Turn the knob clockwise to increase pressure and counterclockwise to decrease pressure. To avoid minor readjustment after making a change in pressure setting, always approach the desired pressure from a lower pressure. When reducing from a higher to a !ower setting, first reduce to some pressure tess than that desired, then bring up to the desired pressure. Depending on the air requirements of each particular accessory, the outlet regulated air pressure might have to be adjusted while you are operating the accessory. Tank Pressure Gauge: The tank pressure gauge indi- cates the reserve air pressure in the tank. Outlet Pressure Gauge: The outtet pressure gauge indicates the air pressure available at the outlet side of the regulator. This pressure is controfled by the regulator and is always less or equal to the tank pressure. See "Operating Procedures." ASSEMBLY totems You WiN Need To Assemble Your Compressor .16 oz, compressor oil, Sears 9-16426 or SAE 20-20W SF motor oil o pipe thread sealant an adjustable wrench for attaching the pressure regulator o a 9/16" socket or open-end wrench for attaching the wheels and hose adapter ⢠a 7/16" open-end wrench for attaching the air pressure gauges o a 3/16" hex key for installing the plug in the regulator Jnstamling Nandme INSTRUCTIONS BENT TABS SAD_ FIG. 1 OF SADDLE OPEN END OF HANDLE TNE WREELS AND HANDLE DO NOT PRO, VDE ADEQUATE CLEARANCE STAB_UTY OR SUPPORT FOR PULUNG TRE UNiT UP AND DOWN STAIRS OR STEPS= TRE UNIT MUST B£ L_ETED OR PUSNED UP A RAMP° DO NOT UPT TNE UNiT BY THE _IAN_FOLD ASSEMBL'£ THE UNiT CAN BE DAMAGED 1. Insert the open end of the handle under the saddle (Fig. t). Before attaching handle, you may have to pull the open ends of the handle apart so they fit tightly against the side of the saddle. Looking in from the open end of the saddle, position the handle towards the two bent tabs, on the inside waits of the saddle. S!owly push the open ends of the handle onto both tabs at the same time (Fig. 2). Continue pushing the handle into the sad- dle until the holes on the side of the saddle and handle are in line. 2. Guide the straight end of each retaining clip through the saddle hole and both handle holes (Fig. 3). 3. Rotate each retaining clip clockwise and press down until it snaps into place over the putI handle (Fig. 4). 4. If the handle has excessive movement, it is improperly installed. Check the following: A. Are both tabs inside the handle (Step #1)? B. Does each clip pass through both the saddle and handle (Step #2)? OPEN END BENT TAB OF HANDLE (ONE ON EACH SEDE) FHG. 2 FgG. 3 7
GUARD t Jt may be necessary to brace or support one end of the outfit when attaching the wheels because the air compressor will have a tendency to tip. mnstagJiag Rubber Foot Strip and Wheels t. Remove the protective paper strip from the adhesive- backed rubber foot strip. Attach the rubber foot strip to the bottom of the air tank leg, Press firmly into place. (See page 14 key no. 39.) 2. The leg bracket on the underside of the air compres- sor tank has 2 holes on each side for mounting the wheels. Place one shoulder bolt through the hote in a wheel. Next, push the bolt through the LOWER hole of the leg bracket and screw on one hex locking nut. The special locking nut does not turn freely. Tighten the nut firmly until it contacts the leg. See pg. 14. The outfit will set level if the wheels are properly installed. _nataHing Tank Pressure Gauge Apply pipe sealant (not supplied) to the gauge threads and install in the threaded opening in front of the manifold. Refer to photo on pg. 6_ InstatSing Regulator (Top View} PLUG PiPE N_PPLE REGULATOR ADAPTER _._ MAN_= REGULATED FOLD PRESSURE GAUGE NOTE Use a small amount of pipe thread seatant (not supplied} on ali pipe thread joints. Install the regulator on the end of the manifold using the short pipe hippie. The arrow on the bottom of the regulator must point away from the manifold in order for the regulator to function properly'. Next, install the gauge, adapter and plug in the regulator. The ptug is supplied with the regulator. NSTALLATJON AND BREAK= N PROCEDURES Location of the Air Compressor Operate the air compressor in a clean, dry and well ventilated area. The air filter must be kept clear of obstructions which could reduce air delivery of the air compressor. The air compressor should be Iocated at least 12" away from wails OF other obstructions that could interfere with the flow of air through the fan bladed fly- wheel. The air compressor crankcase and head are designed with fins to provide proper cooling. If humidity is high, a Sears air filter can be insta!led on the air outlet adapter to remove excessive moisture, and oil vapor from the air. Closely foilow the instructions packaged with the filter for proper installation. _t must be installed as close as possible to the accessory. Extension Cords To avoid voltage drop and power loss to the motor, use extra air hose instead of an extension cord, tf an extension cord must be used: o use only a 3-wire extension cord that has a 3-blade grounding piug and a 3-slot receptacle that wilt accept the plug on the product. o make sure the extension cord is in good condition. ⢠the extension cord should be no longer than 50 feet. ° the minimum wire size is t2 gauge (AWG}. Sears #9- 83606, 12 gauge x 50' extension cord is available at your local Sears Service Center. (Wire size increases as gauge number decreases. 10 AWG and 8 AWG may also be used. DO NOT USE !4 AWG or 16 AWG.) Lubrication and OH Compressors are shipped without oil Do not attempt to operate this air compressor without first adding oi_ to the crankcaaeo P!ace unit on a levet surface. Remove oil fill plug (Key no. 81, pg. 15) and slowly add a speciat compressor oil such as Sears 9-16426 or SAE 20_20W SF motor oil until it is even with the top of the oi! fill hole. (it must not be aliowed to be Iower than 3/8" - 6 threads down - from the top, at any time.) When ill!rig the crankcase, the oil flows vary slowly. If the oil is added too quickly, it will overflow and appear to be full. Crankcase oiI capacity is 16 fad ounces. Under winter-type conditions use SAE 10W oil. Multi-viscosity oil, 10W 30_ witl teave carbon deposits on critical components reducing performance and com- pressor iife. Reptace oil fill plug. 8
Grounding _nstructions iMPROPER GROUNDING CAN RESULT tN ELECTRICAL SHOCK= IN THE EVENT OF A SHORT CIRCUIT, GROUNDING REDUCES THE RiSK OF SHOCK BY PROViDiNG AN ESCAPE WiRE FOR THE ELECTRIC CUR- RENT, THIS A_R COMPRESSOR MUST BE PROPERLY GROUNDED. 1. The air compressor is equipped with a cord having a grounding wire and an appropriate grounding plug= The plug must be used with an outlet that has been installed and grounded in accordance with alt local codes and ordinances. The outlet must have the same configuration as the plug. DO NOT USE AN ADAPTER. 2. Do not modify the plug that has been provided. If it does not fit the available outlet, the correct outlet should be installed by a qualified electrician. 3. Inspect the plug and cord before each use. Do not use the compressor if there are signs of damage. If these grounding instructions are not completely understood, or if you are not sure your compressor is property grounded, have the installation checked by a qualified electrician. OUTLET PLUG Terminal G_'ounding ]/ Pin // Breakqn Procedures Serious damage may result if the following break=in instructions are Rot closely followed. This procedure is required only once, before the air com- pressor is put into service. ELECTRICAL SHOCK HAZARD. WHEN REPAmRING OR REPLACING THE CORD OR PLUG, KEEP THE GROUNDING W_RE SEPA- RATE FROM THE CURRENToCARRYmNG W_RES. NEVER CONNECT THE GROUND- gNG W_RE TO A FLAT BLADE PLUG TER= MINAL, (THE GROUNDING W_RE HAS INSULATION WITH AN OUTER SURFACE THAT IS GREEN - WSTH OR W_THOUT YEL- LOW STRIPES.) 1. Before attaching an air hose or accessory', make sure the pressure switch lever is in the "OFF" posi- tion. Close the air regulator outlet by turning it counter-clockwise. TOO MUCH AmR PRESSURE CAUSES A HAZARDOUS R_SK OF BURSTING, CARE_ FULLY FOLLOW STEPS 3 THROUGH !2 EACH TmME THE COMPRESSOR IS USED, 1. Set the pressure switch lever to the "OFF" position. 2, Plug the power cord into the correct branch circuit receptacle. 3. l_drn the regulator clockwise opening it fully, to prevent air pressure build-up in the tank. 4. Move the pressure switch lever to "ON/AUTO". The compressor witl start. 5. Run the compressor for 30 minutes. Make sure the regulator is open and there is no tank pressure build- up. 6. After 30 minutes, close the regulator by turning it counter-clockwise. The air receiver wilt filt to cut-out pressure and the motor wilt stop. The compressor is now ready for use. OPERATING PROCEDURES 4, ]_Jrn the pressure switch lever to the "ON-AUTO" position and allow tank pressure to build. The motor win stop when tank pressure reaches cut-out pressure. 5. Open the regulator by turning it clockwise. Adjust the regulator to the correct pressure setting. (See pg. 6 for regulator instructions.) Your outfit is ready for use. 3. Check the manufacturer's maximum pressure rating for air tools and accessories. The reguator outlet pressure must never exceed the maximum pressure rating. Compressed air from the outfit may certain water condensation and oH mist. Do not spray uRfi_tered air at aR item that coutd be damaged. Some air operated toots or devices may require filtered air, Read the When You Are F_nished: 6. Set the pressure switch lever to "OFF". 7. qFdrn the regulator counter-clockwise and set the out- let pressure to zero. 8. Remove the air tool or accessory. 9. Open the regulator and allow the air to sowly bleed from the tank. C_ose the regulator when tank pres _ sure is approximately 20 psi. 10. Drain water from air tank. s
NOTE W'_TER WILL CONDENSE IN THE A_R TANK. mF NOT DRAtNED_ WATER W_LL CORRODE AND WEAKEN THE AR TANK; CAUSING A R_SK OF AIR TANK RUPTUREo 1!. With tank pressure at approximately 20 psi., open the drain cock (key 43, pg. 14) and atlow moisture to drain. Turn drain T-handle counterclockwise to open. The drain cock is located under the outfit near the teg without the wheefs. (See pg. 6.) If the drain cock valve is plugged, release all air pressure. The valve can then be removed, Scleaned, and reinstalled. 12. After the water has been drained, close the drain cock (turn clockwise). The air compressor can now be stored. MAINTENANCE UNF CYCLES AUTOMATtCALE#f WHEN POWER _S ON. WHEN DOING MA_NTENANCE_ YOU MAY BE EXPOSED TO VOLTAGE SOURCES, COMPRESSED A_R OR MOVING PAR'TS. PERSONAL _NJURtES CAN OCCUR. BEFORE PERFORMING MAINTENANCE OR REPAIR UNPLUG THE UNiT AND BLEED OFF ALL A_R TANK PRESSBREo NEVER OPERATE THE UNiT WITH THE BELT GUARD REMOVED° Air Compressor A clean air compressor runs cooler and provides longer service. Clean or blow off fins and any other parts of the air compressor that collect dust or dirt. Do not place rags, containers or other material on or against the venti- lation openings in the belt guard. Adequate ventilation is necessary to maintain proper air compressor operating temperature. Air Filter - _nspection and Repmacement NOTE Keep the air filter clean at afl times. Do not oper- ate the compressor with the air filter removed. A dirty air filter will not allow the compressor to operate at full capacity. Before you use the compressor, check the air filter to be sure it is clean. If it is dirty, repIace it with a new filter. The filter may be removed by using a pair of needle nosed pliers or a screwdriver. Pull or pry out the old filter. Push in the new air filter. OH - Checking and Changing Overfilling with oim win cause premature compressor failure. Do not overfill. Check oil tevel in the crankcase daily. Remove the oil fill plug (Key no. 81, pg. 15). The oil level should be even with the top of the fill hole and must not be allowed to be lower than %" from the top (6 threads) at any time. It is recommended that the oil be changed after every 100 hours of operation. To drain the oiI, remove the oil drain ptug and collect the oil in a suitable container. Be sure to replace the ptug securely before adding new oil. Use a special compressor oil such as Sears 9q6426 or SAE 20-20W SF motor oil. (Crankcase oil capacity is 16 fluid ounces.) Under extreme winter conditions use SAE 10W. Multi-viscosity oil (10W30) will leave carbon deposits on critical components which wil! reduce per- formance and compressor life. Check Valve - Replacement 1. Release air pressure from the air tank. 2. Loosen the top and bottom tube nuts and remove the outlet tube. 3. Unscrew the check valve (turn counter-clockwise) using socket wrench. 4. Check that the valve disc moves freely and that the spring holds the disc in the upper, closed position. The check valve may be cleaned with a solvent such as paint thinner or carburetor cleaner. 5. Apply sealant to the check valve threads. Reinstall the check valve (turn clockwise). Do not over tighten. 6. Replace the outlet tube and tighten top and bottom tube nuts. Safety Valve - _nspection [ _F THE SAFETY VALVE DOES NOT WORK PROPERLY OVERoPRESSUR_ZAT_ON MAY OCCUR, CAUSING A_R TANK RUPTURE OR EXPLOSION. OCCASIONALLY PULL TNE R_NG ON THE SAFETY VALVE TO MAKE SURE THAT TNE SAFETY VALVE OPEN° ATES FREELY. _F THE VALVE _S STUCK OR DOES NOT OPERATE SMOOTHLY, IT MUST BE REPLACED W_TN A VALVE HAVING THE SAME PRESBURE R_[_NG_ Motor The motor has a manual thermal overload protector. If the motor overheats for any reason, the overload protec- tor will shut off the motor. The motor must be altowed to cool down before restarting. _Jrn the unit off. To restart, depress the red reset button located on the end of the motor and turn the unit on. 0
NOTE If the overload protector shuts the motor off fre- quently, check for a possible voltage problem Low voltage can also be suspected when: 1. the motor does not get up to fulI power or speed; 2. fuses blow out when the motor is started. 3. lights dim when motor is started, and remain dim while it is running. 2. Remove the front of the belt guard by disengaging the snaps. Insert a flat bladed screwdriver at each snap Iocation and pry the bettguard apart. 3. The motor is mounted on a special base, By ioosenin9 the wing nut at the motor hold down ptate, the motor can be tilted to allow for easy removal of the belt. 4. Remove belt and replace. NOTE The belt must be centered over the grooves on the flywheel and motor pulley. Be_t - Replacement 5. Tighten the wing nut until it makes contact with the washer plus one additional turn. 6. Replace the front of the beltguard. To Adjust Be_t Tension: Tighten the wing nut until it makes contact with the washer plus one additional turn. SERIOUS _NJURY OR DAMAGE MAY OCCUR _F PARTS OF THE BODY OR LOOSE _TEMS GET CAUGHT IN MOVING PARTS. NEVER OPERATE THE OUTFIT WITH THE BELT GUARD REMOVED, THE BELT GUARD SHOULD BE REMOVED ONLY WHEN THE CO_4PBESSOB _S UNPLUGGED, To Replace Belt: f. Unplug compressor. Pulley and Flywheem = Alignment The compressor flywheM and motor puIley grooves must be in-line (in the same plane) within 1/32" to assure belt alignment within grooves. To check alignment, dis- connect electrical power and remove the beltguard. Place a straightedge against the outside of the flywheel and measure the distance from it to the nearest groove. Alignment is achieved when the other end of the straigh- tedge is within 1/32" of the measured dimension at the pulley grooves. STORAGE Before You Store The Air Compreseor: 1. Review the "Maintenance" section on the preceding page and perform maintenance as necessary. Drain the water from the air tank. 2. Set the OFF/AUTO switch to the "OFF" position, and unplug the unit. 3. Remove the air tool or accessory. 4. Protect the electrical cord and air hose from damage (such as being stepped on or run over}. Wind them loosely around the outfit handte, 5. Store the compressor in a clean and dry location. TROUBLESHOOTING GUIDE PERFORMING REPAIRS MAY EXPOSE VOLTAGE SOURCES_ MOVING PARTS_ OR COMPRESSED A_R SOURCES PERSONAL _NJURY MAY OCCUR. PRIOR TO ATTE_IPT_NG ANY REPAIRS THE COMPRESSOR MUST BE UNPLUGGED, AND A_R TANK PRESSURE REUEVED° NEVER OPERATE THE UNiT W_TN THE BELT GUARD REMOVED° PROBLEM CAUSE CORRECTION Excessive tank pressure - safety valve pops off. Pressure switch does not shut off motor when compressor reaches "cut-out" pressure. Move the pressure switch lever to the "OFF" posi- tion. If the outfit doesn't shut off, and the ebctricai contacts are welded together, replace the pressure switch. If the contacts are good, check to see if the pin in the bottom of the pressure retief vane is stuck, if it does not move freely, reptace the valve. Pressure switch "cut-out" too Return the outfit to the Sears Service Center to high. check and adjust or replace switch. Air leaks at fittings "Tube fittings are not tight enough. Tighten fittings where air can be heard escaping. Check fittings with soapy water solution. DO NOT OVER-TIGHTEN.
TROUBLESHOOTING GUIDE (continued) PROBLEM CAUSE CORRECTION Air leaks at check valve Defective or dirty check valve. A defective check valve results in a constant air teak at the pressure reiease valve when there is pressure in the tank and the compressor is shut off. Remove and clean, OF replace check valve. DO NOT OVER-TiGHTEN. Air leaks at pressure Defective pressure switch Remove and replace the release valve. switch release valve release valve. Air leaks in air tank Defective check valve. A defective check valve results in a constant air leak at the pressure release valve when there is pressure in the tank and the compressor is shut off. Remove and clean, or replace check valve. DO NOT OVER-TIGHTEN. Defective air tank. Air tank must be replaced. Do not repair the leak. DO NOT DRILL mNTO, WELD, OR OTHER- W_SE MODIFY AIR TANK OR mT WILL WEAKEN. Air leaks from safety valve Possible defect in safety valve Operate safety valve manually by pulling on ring. ff valve still leaks, it should be replaced. Regulator knob - continu- Dirty or damaged regulator inter- Clean or replace regulator, or internal parts. ous air leak. Regulator will nat parts. not shut-off at air outlet. Knocking noise Defective check valve. Remove and clean, or replace. Loose pulley. Tighten pulley set screw, (70-80 In.-Lbs.). Low oil level. Maintain prescribed oil level. Add oil Loose flywheel. Tighten screw. 15 to 20 ft. lbs. Loose compressor mounting screws. Check screws. Tighten as required, (15-20 Ft.- Lbs.). Loose belt. Tighten wing nut on motor mount until it contacts the washer, plus one more turn. Compressor is not supply- ing enough air to operate accessories. Carbon build up. Prolonged excessive use of air. Compressor is not large enough for air requirement. Remove the head and valve plate. Clean the valve plate and the top of the piston. (Be sure carbon does not fall into the cylinder.) Reassemble using new gaskets and torque screws, 25 to 30 ft. Ibs. Decrease amount of air usage. Check the accessory air requirement, ff it is higher than the SCFM or pressure supplied by your air compressor, you need a larger compressor. Restricted air intake filter. Clean or replace air intake filter. Do not operate the compressor in the paint spray or sand blasting area. 2 Hole in hose. Check valve restricted. Air leaks. Check and replace. Remove and ctean, or replace. Tighten fittings. (See Air Leaks section of Troubleshooting Guide, Pg. tl.)
PROBLEM Excessive belt wear (continued) CORRECTION Adjust tension. See Belt Replacement, pg, 11. Adjust tension. See Belt Replacement, pg. 11. Check for worn keyway or pulley bore. Also check for bent motor shaft. Replace parts if necessary. TROUBLESHOOTING GUIDE CAUSE Loose belt, Tight belt. Loose pulley_ Pulley misalignment. Motor pulley and flywheel must be in line within 1/32". Squealing sound Loose belt. Adjust tension. See Belt Replacement, pg. 11. There is no oii in the compressor. Add oi!. Motor wilt not run Motor overload protection switch Let motor cool off end reset switch by pressing the has tripped, red button located on the end of the motor. Pressure reading on the regulated pressure gauge drops when an accessory is used. Possible defective capacitor. Return to Sears Service Center for inspection or replacement if necessary. Tank pressure exceeds pressure switch "cut-in" pressure. Motor will start automatically when tank pressure drops below "cut-in" pressure of pressure switch. Wrong gauge wire or length of extension cord, Check for proper gauge wire and cord length. Check valve stuck open. Remove and clean, or replace. DO NOT OVER- TIGHTEN. Loose electrical connections. Unplug the compressor. Check wiring connection inside pressure switch and motor terminal box area. Paint spray on internal motor parts. Have checked at Sears Service Center. Do not operate the compressor in the spray area. Possible defective motor. Have checked at a local Sears Service Center. Fuse blown, circuit breaker tripped. 1. Check fuse box for blown fuse and replace if necessary. Re-set circuit breaker. Do not use a fuse or circuit breaker with higher rating than that specified for your particular branch circuit. 2. Check for proper fuse; onty Buss Fusetron Type "T" fuses are acceptable. 3. Check for low voltage conditions and/or proper extension cord. 4. Remove check valve and clean or replace if it is stuck open or closed. 5. Disconnect the other electrical appliances from circuit or operate the compressor on its own branch circuit. Pressure release valve on pres- Bleed the line by pushing the lever on the pressure sure switch has not unloaded switch to the "OFF" position; if valve does not head pressure, open, replace it. It is normal for "some" pressure If there is an excessive amount of pressure drop drop to occur, when the accessory is used, adjust the regulator following the instructions on pg. 6. Note Adjust the regulated pressure under flow conditions (while the accessory is being used).
AIR COMPRESSOR DtAGRAM (view from back} 54 53 52 5O 48 2 55 \ \ "58 !8 34 I7 14 12 "43 51A _J 35 (Model No. shown here) 42 4! (See pg. 8, Step 2 for proper wheel placement and assembly) 14
COMPRESSOR PUMP D_AGRAM 89 82 83 (od "Ill p ugl / / / _o_, dra,n plug} _5
r PARTS LiST KEY NO PART NUMBER f CAC=322 2 CAC_323 3 SSF-8113-ZN 4 CAC-327 5 CACo4OG3-1 6 9=16279 7 265-18 8 SSF-935 9 LA-1779 10 STD575051 11 STD575050 12 CAC-317 13 TIA-4325 TIA-4125 14 C-GA-345 15 STD575026 16 STD575025 17 CAC-387 18 CAC-1012 t 9 CAC-4296 20 H-2099 21 SS-2071 22 CAC-1913 23 SSo3222-CD 24 CAC-366 25 SUDL-403-1 26 SSW-7367 27 LA-1531-1 28 CAC=4220-1 28A KK-4315 29 CAC=4215-1 30 SS=1287 31 CAC=437 32 SSF-928 33 STD54163t 34 LA-1535 35 CACo320 36 LA-1814 37 LA-1932-2 LA-1933 38 CAC-1059 39 SUDL-6=I 40 CAC=60 41 CAC-4293 42 STD541437 43 SS-2797 44 Not Available 45 TA_4099 TA=4072 45 LA-1555 47 CAC-287 48 LA-181 f-1 49 MO=8340 50 C-PU-2885 51 SS-391 5t A LA=f 978 52 STD580104 53 SSF=986 54 LA=1931 DESCRIPTION Belt guard, outside Belt guard, inside Lock nut Bracket Compressor pump assembly includes Key No. 59 through 93 inclusive. intake filter - package of 2 (1 used) Filter retainer Screw, #8-32 x 3/8" (2 used) Hot Surface Labem (2 used) Ferrule (2 used for 1/2" O.D. Tube) Nut (2 used for 1/2" O.D. Tube) Outlet tube Safety valve (model 919.176730) Safety valve ASME (model 919.17683D) Pressure gauge (2 used) Ferrule (2 used for 1/4" O.D. Tube) Nut (2 used for 1/4" O.D. Tube) Pressure release tube Hold down p|ate Pressure regulator Adapter Nipple Held down screw Pipe plug Manifold Cord assembty Strain relief (2 used) Label Pressure switch Pressure release valve and mounting nut (included with #28) Motor cord assembly Nipple Check valve Screw 5/16"-18 à 7/8" (4 used) Wing nut Warning labe_ Handle Periodic maintenance mabel Specification label (Model 919.176730) Specification |abel (Model 919.176830) Retaining clip (2 used) Rubber foot strip Shoulder bolt (2 used) 8" wheel (2 used) Lock nut (2 used) Drain cock Code number label Air tank, 20 gallon (Modei 919.176730) Air tank, 26 gallon ASME (Model 919.176630) Labe_ - 12gV wired Motor pin Sears Craftsman mabeJ Motor, 3 HP Motor pulley Set screw Drain Tank Daily LabeB Motor shaft key (3/16" à 3/16" à 1¼") Self-t_pping screw (2 used) Label
55 C-BT-222 56 SSN°1619oZN 57 SSN=56=ZN 58 CAC-1011 59 SSFo6627 60 CAC-293 61 SSF-955 62 SS=8553 ($3 SSP=940t _/ 84 CAC=291 O 65 265-25 66 SSF-9821 67 CACo294 68 265=196 69 CA0-289 70 CAC-54_1 71 CAC-56 ,Q= 72 CAC-58 ,_ 73 CAC=57 74 CAC-55 75 265ol 9 76 CAC=207 77 265o410 78 SSF-927 79 CAC-51 80 265=41 81 SSP-1413 82 SSF=925 83 265-3 84 265-16 85 CAC=373 88 265-23 87 265-13 88 265-9 89 265=2 90 SSN=1014=ZN 91 STD523107 92 265=11 t 93 265=5 Pomy=V=Belt, 38" long Lock washer Fiat washer E_aetomer spring Stud 3/8" à 36 both ends (2 used} Head Screw, 3/8"=16 à 1=1/2" t4 used) Adapter Adapter Head gasket intake flapper valve = squcre corners I (2 used on head) Screw #5=40 à %" (8 used) Restrictor plate f2 used) EÃhcust fgspper valve o beveled corners I_ (2 used on veJve p_ate) Valve plate Valve plate gasket Compression ring (4 used) Oi_ ring (4 used) OiJ ring expsnder (2 used) Piston (2 used) Piston pin (2 used) Piston pin plug (4 used) Connecting rod aasembty (2 used) includes two SSFo927 screws, Key #78. Screw, 1/4"-20 x %t/8" !4 used) Crankcase and cyiinder Needle bearing Pipe pmug (2 used) Screw, 1/4"-20 x 7/8" (] 2 oaed) Base Base gasket Crankshaft Needle bearing End ptate gasket End PIste Flywheel BelleviHe washer Cap screw Seal Vent filter 9-16259 9-16153 SI-30_14o4-D NOTmLLUSTRATED Airchuck Airhose assembly(1/4"LD.Ã15') Owners manuat _= Key No. 71, 72 and 73, only available in Ring Kit KK-4313 J Key No. 6, 84, 70, 84, 87, 92 and 93, available as individuaD parts end part of Gasket Kit KK=4312-2_ O Key No. 65, 65 and 68, on{y svaitabJe in Veive Kit KK-4275.
OWNERS MANUAL SERVICE MODEL NO. 919.176730 919.176830 HOW TO ORDER REPAIR PARTS CRAFTSMAN AIR COMPRESSOR Now that you have purchased your Sears Air Compressor, should a need ever exist for repair parts or service, simply contact any Sears Service Center and most Sears, Roebuck and Co. stores. Be sure to provide all pertinent facts when you call or visit. The model number of your Sears Air Compressor is 919 This number can be found on the maintenance label which is located on the rear of the air tank. WHEN ORDERING REPAIR PARTS, ALWAYS GIVE THE FOLLOWING INFORMATION: ⢠PART NUMBER ⢠PART DESCRIPTION , MODEL NUMBER ⢠NAME OF ITEM If service or repair parts are required for the motor, supply all motor nameplate information including manufacturers name. All parts listed may be ordered from any Sears Service Center and most Sears stores. If the parts you need are not stocked locally, your order will be elec- tronically transmitted to a Sears Repair Parts Distribution Center for handling. SI-30-14-4-D 6/89 Sears, Roebuck and Co., Chicago, _L 60684 U.SoAo Printed in U.S.A,