Craftsman 919165600 User Manual AIR COMPRESSOR Manuals And Guides L0711172
CRAFTSMAN Air compressor Manual L0711172 CRAFTSMAN Air compressor Owner's Manual, CRAFTSMAN Air compressor installation guides
User Manual: Craftsman 919165600 919165600 CRAFTSMAN AIR COMPRESSOR - Manuals and Guides View the owners manual for your CRAFTSMAN AIR COMPRESSOR #919165600. Home:Tool Parts:Craftsman Parts:Craftsman AIR COMPRESSOR Manual
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SEARS OWNER'S MANUAL CRAFTSHRNo PERMANENTLY L UBRI CA TED TANK MOUNTED TWIN CYLINDER AIR COMPRESSOR • • • • • • SAFETYGUIDELINES ASSEMBLY OPERATION MAINTENANCE TROUBLESHOOTING REPAIR PARTS IMPORTANT: Read the Safety Guidelines and All Instructions Carefully Before Operating. Sears, MG2- PERMTWIN Rev, 7/11/96 Roebuck and Co., Hoffman Estates, IL 60179 U.S.A. TABLE OF CONTENTS Page SAFETY GUIDELINES WARNING CHART GLOSSARY FOR USE WITH INFORMATION DESCRIPTION SEARS AIR COMPRESSORS .................................. .............................................................................................. OF OPERATION ASSEMBLY REMOVAL ........................................................................................................... ...................................................................................................................... ACCESSORIES GENERAL ..................................................................................................... ..................................................................................... ...................................................................................................................... OF SHIPPING INSTALLATION BOARDS AND BREAK-IN AND INSTALLATION PROCEDURES ............................................ ........................................................... 3 3 5 5 5 6 7 7 7 Location of Air Compressor ........................................................................................ Lubrication and Oil ...................................................................................................... Extension Cords .......................................................................................................... 7 7 8 Voltage and Circuit Protection .................................................................................... Grounding Instructions ................................................................................................ Wiring Instructions - Permanently Mounted Compressors ......................................... 8 8 8 OPERATING PROCEDURES MAINTENANCE .......................................................................................... .............................................................................................................. 9 10 Air Filter - Inspection and Replacement ................................................................... Check Valve -Replacement ...................................................................................... 10 10 Safety Valve - Inspection .......................................................................................... Motor ......................................................................................................................... 10 11 Storage 11 ..................................................................................................................... TROUBLESHOOTING HOW TO ORDER WARRANTY GUIDE REPAIR ....................................................................................... PARTS ................................................................................ ................................................................................................................... 12 16 16 SAFETY GUIDELINES = DEFINITIONS ]This manual contains information that is important for you to know and understand. This information relates to protectingYOUR SAFETY and PREVENTING EQUIPMENT PROBLEMS. To help you recognize this information, we use symbols to the right. Please read the manual and pay attention to these sections. I_ DANGER I I _CAUTION URGENTSAFETYINFORMATION -A HAZARD THATWILL CAUSE SERIOUS INJURY OR LOSS OF LIFE [ _WARNING Information equipment. for preventing I I IMPORTANT SAFETY INFORMATION - A HAZARD THATMIGHTCAUSE SERIOUS INJURYOR LOSS OF LIFE. I damage NOTE Information that you should attention to. to I pay special IMPORTANT SAFETY INSTRUCTIONS • SAVE THESE INSTRUCTIONS • IMPROPER OPERATION OR MAINTENANCE OFTHIS PRODUCT COULD RESULT IN SERIOUS INJURY AND PROPERTY DAMAGE. READ AND UNDERSTAND ALL WARNINGS AND OPERATING INSTRUCTIONS BEFORE USINGTHIS EQUIPMENT. WHAT TO LOOK FOR Hot Parts WHAT COULD HAPPEN HOW TO PREVENT IT The metal compressor components, such as manifold, tubes, etc., become hot when the air compressor is running. If you touch them, you may be seriously burned Avoid contact with metal components of the compressor during or immediately after operation. Reaching under or removing portions of the plastic enclosures such as the filter cover and console cover exposes hot surfaces. cool prior to servicing. Flammable Vapors It is normal for the motor and pressure switch to spark when compressor starts or stops. A spark can ignite vapors from gasoline or solvents, causing a fire or explosion. Allow compressor to If spraying a flammable material, provide ample ventilation. Never spray in a closed area. There must be a flow of fresh air at all times. Always operate the air compressor in well-ventilated areas, free of gasoline or other solvent vapors. Do not operate the compressor near the spray area. Air Tank Modifications to air compressor components in an attempt to reach higher air pressure can cause the air tank to rupture or explode. Do not adjust, remove or tamper with the safety valve or pressure switch. If safety valve or pressure switch replacement is necessary, a part with the same ratings must be used. Incompatability between tank and compressor cause the tank to rupture. Never replace the air tank with a different model or a larger tank. Return to Authorized Service Center will if replacement Modifications weaken. to the air tank will cause it to is required. Never drill into, weld or in any way modify the air tank. The tank may rupture or explode. If leaks develop due to corrosion or tank is damaged, return to Authorized Service Center for replacement. SAFETY GUIDELINES WHAT TO LOOK FOR Compressed Air / WHAT COULD HAPPEN [ Compressed air can propel dust, dirt or loose particles it comes in contact with. These propelled _articles may cause serious injury or damage. / HOW TO PREVENT IT Never point any nozzle or sprayer toward a person or any part of the body. Always wear safety goggles or glasses when using the air compressor. Always turn the air compressor ing or removing accessories. Electricity off before attach- Too much air pressure applied to air tools or accessories can cause damage or risk of bursting. Check the manufacturer's pressure rating for air tools and accessories. Regulator outlet pressure must never exceed the maximum pressure rating. NOTE: IF A REGULATOR IS NOT SUPPLIED WITH YOUR COMPRESSOR, YOU MUST INSTALL ONE BEFORE USING AIR TOOLS AND ACCESSORIES WITH PRESSURE RATINGS LESS THAN 200 PSIG. Your air compressor is powered by electricity. Like any other electrically powered device, if it is not used properly it may cause electrical shock. Always unplug the air compressor nance or repair. Never use the air compressor raining. prior to mainte- outdoors when it is Always plug the cord into an electrica! outlet with the specified voltage and adequate fuse protection. Toxic Vapors It is normal for compressed air to contain toxic or irritating vapors. Such vapors are harmful if inhaled. Never directly inhale the compressed by this unit. Certain materials you are spraying (like paint, weed killer, sand or insecticide) can be harmful if Read labels and safety data for al! materials spray. Follow all safety precautions. you inhale them. Unsuitable Solvents The solvents 1,1,1 - Trichloroethane air produced you Use a mask or respirator if there is a chance of inhaling toxic sprayed materials. Masks and respirators have limits and will only provide protection against some kinds and limited amounts of toxic material. Read mask and respirator instructions carefully. Consult with a safety expert or industrial hygienist if you are not sure about the use of a certain mask or respirator. and Meth- ylene Chloride can chemically react with aluminum 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 solvents listed at left (read the label or data sheet), do not use accessories that contain aluminum or galvanized parts. You must either change the material you intend to spray, or use only stainless steel spray equipment. GLOSSARY CFM: Cubic feet per minute. Cut-In Pressure: While the motor is off, air tank pressure drops as you continue to use your accessory. When the tank pressure drops to a certain low level the motor wil! restart automatically. The low pressure at which the motor automatically re-starts is called "'cut-in pressure." SCFM: Standard cubic feet per minute; a unit of measure of air delivery. PSIG: Pounds per square inch gauge; a unit of measure of pressure. Cut-Out Pressure: When you turn on your air compressor 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 pressure at which the motor shuts off is called "cut-out pressure." ASME: American Society of Mechanical Engineers; made, tested, inspected and registered to meet the standards of the ASME. U.L. Listed: This product is listed by Underwriters Laboratories, Inc. (UL). Samples of this product have been evaluated by UL and meet the applicable UL standards for Safety. ACCESSORIES FOR USE WITH SEARS AIR COMPRESSORS •SPRAY GUNS •BLOW GUNS •AIR CAULKING GUNS •POWER WASHER .SANDBLASTERS •AIR BRUSHES •AIR LINE FILTERS •TIRE AIR CHUCKS .PAINT TANKS •AIR TANKS •INFLATOR KITS •QUICK CONNECTOR SETS (various sizes) .VISCOSIMETER "NAILER/STAPLERS •AIR PRESSURE REGULATORS •OIL FOG LUBRICATORS •AIR TOOLS: Sanders Drills Impact Wrenches Hammers •AIR HOSE: 1/4", 5/16" or 3/8" I.D. in various lengths Decking Farming Roofing Siding Finishing Carpentry Upholstery Picture Framing •DRAIN CLEANER •DUSTER GUN GENERAL INFORMATION You have purchased an air compressor unit consisting of a 2 cylinder, single-stage air compressor pump and air tank. Included with portable compressors only are wheels, regulator, gauges, and handle. Stationary units are not supplied with regulators. guns, air tools, caulking guns, grease guns, air brushes, sandblaster, or inflating tires and plastic toys, spraying weed killers, insecticides, etc. An air pressure regulator is required for most of the applications. An air filter which removes This air compressor requires no oil. Now you can enjoy all the benefits of having an air compressor without ever having to purchase, add or change oil. Your air compressor can be used for operating paint spray compressed moisture and dirt from the air should be used where applicable. These accessories can be purchased from most Sears stores or from the Sears Power Tool Catalog. DESCRIPTION OF OPERATION 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 valves. The exhaust valves remain closed. On the upstroke of the piston, air is compressed. The intake valves close and compressed air is forced out through the exhaust valves, through the outlet tubes, through the check valve and into the air tank. Working air is not available until the compressor has raised the air tank pressure above that required at the air outlet. Check Valve: 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 valve "closes", allowing air pressure to remain inside the air tank. Pressure Release Valve: The pressure release valve located on the side of the pressure switch, is designed to automatically release compressed air from the compressor head and the outlet tube when the air compressor reaches "cut-ont" pressure or is shut off. If the air is not released, the motor will not be able to start. The pressure release valve allows the motor to restart freely. When the motor stops running, air will be heard escaping from the valve for a few seconds. No air should be leaking when the motor is running. Pressure Switch: The pressure switch automatically starts the motor when the air tank pressure drops below the factory set "cut-in" pressure. It stops the motor when tl_e air tank pressure reaches the factory set "cut-out" pressure. Globe Valve: Turn the knob counter-clockwise valve and clockwise to close. Safety Valve: If the pressure switch does not shut off the air compressor at its cut-out pressure setting, the safety valve will protect the tank against high pressure by "popping out" at its factory set pressure (slightly higher than the pressure switch cut-out setting). Regulator: The air pressure coming from the air tank is controlled by the regulator. Turn the regulator knob clockwise to increase pressure and counter-clockwise 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 lower setting, first reduce to some pressure less than that desired, then bring up to the desired pressure. Depending on the air requirements of each particular accessory, the outlet regulated air pressure may have to be adjusted while operating the accessory. Outlet Pressure Gauge: The outlet pressure gauge indicates the air pressure available at the outlet side of the regulator. This pressure is controlled by the regulator and is always less or equal to the tank pressure. See "Operating Procedures". Tank Pressure Gauge: The tank pressure gauge indicates the reserve air pressure in the tank. Cooling System: This compressor contains an advanced design cooling system. At the heart of this cooling system is an engineered fan. It is perfectly normal for this fan to blow air through the vent holes in large amounts. You know that the cooling system is working when air is being expelled. to open the Tools Needed for Assembly • a 9116" socket or open end wrench for attaching the wheels or removing • a 3/8" open end wrench or socket to tighten handle screws shipping boards ASSEMBLY FOR PORTABLE COMPRESSORS Installing Strip Wheels, Handles, Rubber Foot It may be necessary to brace or support one end of the outfit when attaching the wheels and the rubber foot strip because the air compressor will have a tendency to tip. THE WHEELS AND HANDLE DO NOT PROVIDE ADEQUATE CLEARANCE, STABILITY OR SUPPORT FOR PULLING THE UNIT UP AND DOWN STAIRS OR STEPS. THE UNIT MUST BE LIFTED, OR PUSHED UP A RAMP. using upper bolt hole for 30 and 33 gallon units. Tighten securely. The outfit will sit level if the wheels are properly installed. Attach the handle to the compressor saddle by inserting the handle inside the compressor saddle and lining up the two bolt holes on each side. Install the four screws, two on each side. Tighten Install one shoulder bolt and one nut for each wheel . Clean and protective foot strip. leg. Press . securely. dry air tank leg opposite wheels. Remove the paper strip from the adhesive backed rubber Attach the rubber foot strip to the bottom of firmly into place. REMOVAL OF SHIPPING BOARDS AND INSTALLATION FOR STATIONARY (PERMANENTLY MOUNTED) UNITS . It may be necessary to brace or support one side of the outfit when removing the shipping boards because the air compressor will have a tendency to tip. Remove all packaging such that only the compressor on the pallet remains. Remove and discard the (4) screws and washers that hold the compressor to the pallet. This compressor is designed to be bolted directly to a level floor. Prior to installing, place the new washers which are supplied with the compressor, between the feet and floor such that the ring base at the bottom of the tank does not contact the floor. Tighten bolts 15-20 ft. lbs. INSTALLATION AND BREAK-IN PROCEDURES Location Break-In of the Air Compressor Locate 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 located at least 12" away from the wall or other obstructions that will interfere with the flow of air. The air compressor head and shroud are designed allow for proper cooling. Lubrication and Oil This unit needs no lubrication or oiling. to Procedures The procedure is required only once, before the compressor is put into service. Operate the compressor with the regulator or shut-offvalve fully open for 15 minutes. Make sure that no pressure is building in the tank. After 15 mintues, close the regulator or shut-off valve and allow the tank to fill to cut-out pressure and then the motor will stop. Your compressor is now ready for use. Extension Cords Use air hose instead of an extension cord to avoid voltage drop and power loss to the motor, and to prevent overheating. The portable air compressor is equipped with a cord having a grounding wire with an appropriate grounding plug. The plug must be used with an outlet that has been installed and grounded in accordance with all local codes and ordinances. The outlet must have the same configuration as the plug. See illustration. DO NOT USE AN ADAPTER. If an extension cord must be used, be sure it is: • a 3-wire extension cord that has a 3-blade grounding plug, and a 3-slot receptacle that will accept the plug on the product • in good condition • no longer than 50 feet • 12 gauge (AWG) or larger. (Wire size increases as gauge number decreases. 10 AWG and 8 AWG may also be used. DO NOT USE 14 OR 16 AWG.) Voltage and Circuit Protection Refer to your Parts List Manual for the voltage and circuit protction requirements of your compressor. Use only a fuse or circuit breaker that is the same rating as the branch circuit the air compressor is operated on. If the compressor is connected to a circuit protcted by fuses, use only dual element time delay fuses, as noted in that Service Bulletin. Refer to Parts List Manual for your compressor. Certain air compressor models can be operated on a 15 amp circuit if: 1. Voltage supply to circuit is normal. 2. Circuit is not used to supply any other electrical (lights, appliances, etc.). Inspect the plug and cord before each use. Do not use if there are signs of damage. IMPROPER GROUNDING ELECTRICAL SHOCK. 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. If repairing or must be kept Never connect terminal. The surface that is Extension 4. Circuit is equipped with a 15 amp circuit breaker or 15 amp time delay fuse. or plug, the grounding wire the current-carrying wires. wire to a fiat blade plug has insulation with an outer without yellow stripes. If these grounding instructions are not completely understood, or if in doubt as to whether the compressor is properly grounded, have the installation checked by a qualified electrician. 120 Volt Models 240 Volt Models whne cords comply with specifications. If any of the above conditions cannot be met, or if operation 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 cord set. '-_O GROUNDING PIN - Portable replacing cord separate from the grounding grounding wire green - with or needs 3. GROUNDING CAN RESULT IN J 20 AMP PLUG _ I GROUNDING J --,4 o PIN INSTRUCTION Compressors Wiring Instructions - Stationary Mounted) Compressors RISK OF ELECTRICAL SHOCK. grounded. (Permanently In the event of a short circuit, grounding reduces the risk of shock by providing an escape wire for the electric current. This air compressor must be properly OUTLET If your compressor is not equipped with a plug-in type power cord, perform electrical wiring according to the following instructions: Refer to the Specification Chart in the Outfit Parts Bulletin for your compressor. RISK OF ELECTRICAL SHOCK. IMPROPER ELECTRICAL GROUNDING CAN RESULT IN ELECTRICAL SHOCK. WIRING FORTHE PRESSURE SWITCH SHOULD BE DONE BY A LICENSED ELECTRICIAN IN ACCORDANCE WITH NATIONAL AND LOCAL CODES AND ORDINANCES. Install the compressor as close to the main power supply as possible. This practice will avoid using long lengths of electrical wiring for the power supply which can cause power loss to the motor. When connecting wires, make sure that : 1. The amperage rating of the electrical 2. The supply line has the same electrical claaracteristics (voltage, cycle, phase) as the motor. Wiring must be such that lull motor nameplate voltage plus or minus 10% is available at the motor terminals during starting. Refer to local codes for recommended wire sizes for correct wire size and maximum wire run; undersize wire causes high amp draw and overheating to the motor. Electrical wiring must be located away from hot suHaces such as manifold assembly, compressor outlet tubes, heads, or cylinders. box is adequate. OPERATING PROCEDURES , 2. Before attaching air hose or accessories, make sure the OFF/AUTO lever is set to "OFF" and the air regulator or globe valve is closed. 6. Always operate the air compressor in well-ventilated areas; free of gasoline or other solvent vapors. Do not operate the compressor near the spray area. Attach hose and accessories. When you are finished: 7. Set the "OFF/AUTO" lever to "OFF". 8. TOO MUCH AIR PRESSURE CREATES A HAZARDOUS RISK OF BURSTING. CAREFULLY FOLLOW STEPS 3 AND 5 EACH TIME THE COMPRESSOR IS USED. Compressed air from the outfit may contain water condensation. Do not spray untiltered air at an item that could be damaged. Some air operated tools or devices may require filtered air. Read the instructions for the air tool or device. . . . Check the manufacturer's maximum pressure rating for air tools and accessories. The regulator outlet pressure must never exceed the maximum pressure rating. If your compressor is not supplied with a regulator with gauge, instal! one before using accessories. Turn the regulator counterclockwise and set the outlet pressure to zero. 9. Remove the air tool or accessory. 10. Open the regulator and allow the air to slowly bleed from the tank. Close the regulator when tank pressure is approximately 20 psi. 11. Drain water from air tank. WATER WILL CONDENSE IN THE AIR TANK. IF NOT DRAINED, WATER WILL CORRODE AND WEAKEN THE AIR TANK CAUSING A RISK OF AIR TANK RUPTURE. With tank pressure at approximately cock or drain valve. 20 psi, open the drain NOTE: Turn the OFF/AUTO lever to "AUTO" and allow tank If drain cock valve is plugged, release all air. The valve can then be removed, cleaned, then reinstalled. pressure to build. Motor will stop when tank pressure reaches "cut-out" pressure. 12. After the water has been drained, close the drain cock Open the regulator by turning it clockwise. Adjust the regulator to the correct pressure setting. Your compressor is ready for use. or drain valve. The air compressor can now be stored. MAINTENANCE UNIT CYCLES AUTOMATICALLY WHEN POWER IS ON. WHEN DOING MAINTENANCE, YOU MAY BE EXPOSED TO VOLTAGE SOURCES, COMPRESSED AIR OR MOVING PARTS. PERSONAL INJURIES CAN OCCUR. BEFORE PERFORMING ANY MAINTENANCE OR REPAIR, UNPLUG THE COMPRESSOR AND BLEED OFF ALL AIR PRESSURE. ALL MAINTENANCE AND REPAIR OPERATIONSNOT LISTED MUST BE DONE BY QUALIFIED SERVICE PERSONNEL. Air Filter - Inspection and Replacement Check Valve Replacement Compressors Hot surfaces. Risk of burn. Compressor heads are exposed when filter cover is removed. Allow compressor to cool prior to servicing. 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. Check Valve - Replacement - Stationary (Permanently Mounted) Compressors 1. 2. Release all air pressure from air tank and disconnect outfit from supply circuit. Remove rear shroud. 3, Remove tubes and compression fittings at the tee and remove the tee from the check valve. 4. Remove the pressure release tube and fitting from the check valve. Unscrew the check valve (turn counterclockwise) using a socket wrench. The check valve may be cleaned with a solvent, such as paint and varnish remover. Apply sealant to the check valve threads. Reinstall the check valve (turn clockwise). DO NOT OVERTIGHTEN. 5. 6. 7. 8. 9. 10. 11. !0 Risk of personal injury. Mainfold assembly contains compressed air which can be hazardous. Manifold gets hot during operation. Before servicing: • Unplug or disconnect electrical supply to compressor. • Bleed tank of pressure. _@_ Keep the air filter clean at all times. Do not operate the compressor with the air filter removed. Replace the pressure release tube, fitting and tee. Replace the outlet tubes and tighten fittings. Replace the shroud. Connect compressor to supply circuit. - Portable l. 2. Release all air pressure from air tank and unplug outfit. Remove shroud. 3. Loosen the top and bottom nuts and remove the outlet tube. 4. 5. Remove the pressure release tube and fitting. Unscrew the check valve (turn counterclockwise) using a socket wrench. 6. Check that the valve disc moves freely inside the check valve and that the spring holds the disc in the upper, closed position. The check valve may be cleaned with a solvent, such as paint and varnish remover. 7. Apply sealant to the check valve threads. Reinstall the check valve (turn clockwise). 8. Replace the pressure release tube and fitting. 9. Replace the outlet tube and tighten top and bottom nuts. 10. Replace the shroud. Safety Valve - Inspection If the safety valve does not work properly, over-pressurization may occur, causing air tank rupture or an explosion. Before starting compressor, pull the ring on the safety valve to make sure that the safety valve operates freely. If the valve is stuck or does not operate smoothly, it must be replaced with the same type of valve. MAINTENANCE (cont'd) Motor Storage The motor has an automatic reset thermal overload protector. If the motor overheats for any reason, the overload protector will shut off the motor. The motor must be allowed to cool down before restarting. The compressor will automatically restart after the motor cools. Before you store the air compressor, following: 1. Review the"Maintenance" and"Operating Procedures" sections and perform maintenance as necessary. Be sure to drain water from the air tank. If the overload protector shuts the motor off frequently, check for a possible voltage problem. Low voltage can also be suspected when: 2. Protect the electrical cord and air hose from damage (such as being stepped on or run over). Wind them loosely around the compressor handle. . 2. The motor does not: get up to full power or speed. Fuses blow out when starting the motor; lights dim and remain dim when motor is started and is Store the air compressor make sure you do the in a clean and dry location. running. 11 TROUBLESHOOTING GUIDE PERFORMING REPAIRS MAY EXPOSE VOLTAGE SOURCES, MOVING PARTS OR COMPRESSED AIR SOURCES. PERSONAL INJURY MAY OCCUR. PRIOR TO ATTEMPTING ANY REPAIRS, UNPLUG THE COMPRESSOR AND BLEED OFF TANK AIR PRESSURE. CORRECTION PROBLEM CAUSE Excessive tank pressure - safety valve pops off. Pressure switch does not shut off motor when compressor out" pressure. reaches "cut- Move the pressure switch lever to the "OFF" position. If the outfit doesn't shut off, and the electrical contacts are welded together, replace the pressure switch. Pressure switch "cut-out" too high. Return the outfit to Sears Service Center to 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-TGHTEN. Air leaks at or inside check valve. Defective or dirty check valve. A defective check valve results in a constant air leak at the pressure release valve where there is pressure in the tank and the compressor is shut off. Remove and clean or replace check valve. Air leaks at pressure switch release valve. Defective valve. Remove and replace the release valve. pressure switch release Defective check valve. If the contacts are good, check to see if the pin in the bottom of the pressure release valve is stuck. If it does not move freely, replace the 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. Air leaks in air tank or at air tank welds. Defective air tank. Air tank must be replaced. Do not repair the leak. DO NOT DRILL INTO, WELD OR OTHERWISE MODIFY AIR TANK OR IT WILL WEAKEN. THE TANK CAN RUPTURE OR EXPLODE. Air leaks between valve plate, head and Pressure reading on the regulated pressure gauge drops when an accessory is used. Leaking seal. Torque head screws to 8 ft. lbs. If this does not stop leak, replace seal. It is normal for "some" pressure drop to occur. If there is an excessive amount of pressure drop when the accessory is used, adjust the regulator following the instructions on page 6. NOTE Adjust the regulated pressure under flow conditions (while accesory is being used). Air leak from safety valve. Possible defect in safety valve. Operate safety valve manually by pulling on ring. If valve still leaks, it should be replaced. Knocking Noise Defective check valve. Remove and clean, or replace. 12 TROUBLESHOOTING PROBLEM GUIDE (Continued) CORRECTION CAUSE ............ Compressor is not supplying] Prolonged excessive use of air. enough air to operate accesso- l ries. I Compressor is not large enough for air requirement. Motor will not run or restart. Decrease amount of air usage. Check the accessory air requirement. If it is higher than the SCPM 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 air compressor in the paint spray area. Hole in hose. Check and replace if required. Check valve restricted. Remove and clean, or replace. Air leaks. Tighten fittings. (See Air Leaks Section of Troubleshooting Guide.) Motor overload protection switch has tripped. Let motor cool off and overload switch will automatically reset. Tank pressure exceeds pressure switch "cut-in" pressure. Motor will start automatically when tank pressure drops below "cut-in" pressure of pressure swilch. Wrong gauge wire or length of extension cord. _'heck for proper gauge wire and cord length. Check valve stuck open. Remove and clean, or replace. Loose electrical connections. Check wiring connection inside pressure switch and terminal box area. Possible defective motor or capacitor. Return to Sears Service Center for inspection replacement, if necessary. Paint spray on internal motor parts. Have checked at Sears Service Center. Do not operate the compressor in the paint spray area. See flammable vapor warning. Fuse blown, circuit breaker tripped. 1.Check fuse box for blown fuse and replace, if necessary. Reset circuit breaker. Do not use a fuse or circuit breaker with higher rating than that specified for your particular branch circuit. or 2. Check for proper fuse; only time delay fuses are acceptable. 3. Check for low voltage conditions and/or proper extension cord. 4. Disconnect the other electrical appliances from circuit or operate the compressor in its own branch circuit. Regulator knob continuous air leak. Regulator will not shut off at air outlet. Pressure release valve on pressure switch has not unloaded head pressure. Bleed the line by pushing the lever on the pressure switch to the "off" position; if the valve does nut open, replace it. Broken exhaust Remove head and valve plate, inspect and replace if necessary. valve. Dirty or damaged _arts. regulator internal Clean or replace regulator, or internal parts. 13 SERVICE NOTES 14 SERVICE NOTES 15 CRRFTSMRNo SEARS PERMANENTLY LUBRICATED TANK MOUNTED TWIN CYLINDER AIR COMPRESSOR OWNER'S MANUAL For the repair or replacement parts you need Call 7 am - 7 pm, 7 days a week When requesting service or ordering parts, always provide the following information: =Model Number (1-800-366-7278) For in-home major brand repair service Call 24 hours a day, 7 days a week , Part Number 1-800-4-REPAIR • Part Description • Name of item (1-800-473-7247) For the location of a Sears Parts and Repair Center in your area Call 24 hours a day, 7 days a week FULL ONE YEAR WARRANTY 1-800-488-1222 AIR COMPRESSOR If this air compressor fails due to a defect in material or workmanship within one year from the date of purchase, RETURN IT TO THE NEAREST SEARS REPAIR CENTER THROUGHOUT THE UNITED STATES AND SEARS WILL REPAIR IT, FREE OF CHARGE. If this air compressor is used for commercial or rental purposes, the warranty will apply for ninety days from the date of purchase. For information Roebuck a Sears A Maintenance Agreement or to inquire about an existing Agreement call 9 am - 5 pm, Monday-Saturday 1-800-827-6655 This warranty gives you specific legal dghts and you may have other rights which vary from state to state. Sears, on purchasing and Co., Hoffman America's Repair Spac;atists, Estates, IL 60179 U.S.A.
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