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Craftsman MG-OILLUBE Air compressor Manuallines

Oil lubricated single stage
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S _AIRS
CRAFTSMAN
NOTE: For identification of Repair
Parts, see separate Parts List
Manual.
IMPORTANT:
Read the Safety Guidelines
and All Instructions
Carefully
Before Operating
GENERAL MANUAL FOR
OIL LUBRICATED
SINGLE STAGE
AIR COMPRESSORS
SAFETY
GUIDELINES
ASSEMBLY
OPERATION
MAINTENANCE
TROUBLESHOOTING
REPAIR
PARTS
Record in the spaces provided.
(1) The model number which can be
found on the maintenance label on
the left front of the air tank.
(2) The code number which can be
found on the foil label on the rear
of the air tank.
(3) The Manufacturers Number(ASME
code compressors only) is located
on the metal data plate which is
welded onto the backside ofthe air
tank. (This data plate Is painted the
same color as the tank.)
Retain these numbers for future
reference.
Model No.
Code No.
Mfg. No.
i MG-OILLUBE
8/22/90
i
Sears,
Roebuck
and Co., Chicago,
IL 60684
U.S.A.

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Summary of Contents for Craftsman MG-OILLUBE Air compressor

  • Page 1 S _AIRS GENERAL MANUAL FOR CRAFTSMAN OIL LUBRICATED SINGLE STAGE AIR COMPRESSORS NOTE: For identification of Repair Parts, see separate Parts List Manual. Record in the spaces provided. (1) The model number which can be found on the maintenance label on the left front of the air tank.

  • Page 2: Table Of Contents

    TABLE OF CONTENTS Page Page WARRANTY ............ Grounding Instructions ........ Piping ............SAFETY GUIDELINES ........Additional Regulators and Controls .... Break-in Procedures ........WARNING CHART .......... OPERATING PROCEDURES ......SPECIFICATIONS ..........Daily Start-Up Checklist ........ Normal Operation ......... GLOSSARY ............. 5 MAINTENANCE ..........

  • Page 3: Warning Chart

    Thismanual c ontains information t hatis important f oryouto knowandunderstand. T his information r elates to protecting Y OUR SAFETY andPREVENTING EQUIPMENT P ROBLEMS. Tohelpyourecognize t hisinformation, weusethefollowing symbols. P lease readthe manual a ndpayattention tothesesections. URGENT SAFETY INFORMATION IMPORTANT SAFETY INFORMATION HAZARD THAT WILL CAUSE SERIOUS...

  • Page 4: Safety Guidelines

    SAFETY GUIDELINES WHAT TO HOW TO PREVENTIT WHAT COULD HAPPEN LOOK FOR Electricity Your air compressor is powered by electricity. Like Wiring of the pressure switch, motor and ON/OFF switch should be done by a licensed electrician in any other electrically powered device, if it is not used accordancewith nationaland local codes.

  • Page 5: Specifications

    SPECIFICATIONS Refer to Outfit Parts Bulletin for the specifications of If any of the above conditions cannot be you r compressor. Use only a fuse or circuit breaker that met, or if operation of the compressor isthe same rating as the branch ci rcu itthe air compres- peatedly causes interruption of the power, sor is operated on.

  • Page 6: Accessories For Use With Sears Air Compressors

    Thefollowing a ccessories a reavailable t hrough thecurrent g eneral salecatalog orat full-line Searsstores. •SPRAY GUNS •AIR TANKS •AIR HOSE: •BLOW GUNS •INFLATOR KITS 1/4", 5/16" or 3/8" I.D. •AIR CAULKING GUNS •QUICK CONNECTOR SETS in various lengths •AIR POWERED WASHER GUNS (various sizes) .NAILER/STAPLERS "SANDBLASTERS...

  • Page 7: Description Of Operation

    DESCR PT ONOFOPERAT ON Drain Valve: At the base of the air tank to drain con- Shut-off Valve: Turn the knob counterclockwise densation at the end of each use. open the valve and clockwise to close. Motor Thermal Overload Protector: The electric Safety Valve: If the pressure switch does not shut off motor has an automatic thermal overload protector.

  • Page 8: Assembly

    ASSEMBL Y INSTRUCTIONS ....... Items Needed for Assembly 1. Insert the open end of the handle under the saddle 16 oz. of Sears compressor oil, Sears 9-16426 or (Fig. 1). Before attaching handle, you may have to SAE 20-20W (Grade SF) pipe thread sealant pull the open ends of the handle apart so they fit tightly against the side of the saddle.

  • Page 9: Installing Rubber Foot Strip And Wheels

    ..... ASSEMBL Y INSTRUCTIONS Installing Shut-off Valve (outfits without regulators) It 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. Installing Rubber Foot Strip and Wheels 1.

  • Page 10: Installation And Break-In Procedures

    INSTALLATION AND BREAK-IN PROCEDURES Extension Cords Location of the Air Compressor Operate the air compressor in a clean, dry and well To avoid voltage drop and power loss to the motor, use ventilated area. The air intake filter must be kept clear extra air hose instead of an extension cord.

  • Page 11: Grounding Instructions

    I..INSTALLATION AND BREAK-IN PROCEDURES If these grounding instructions are not completely Grounding Instructions understood, or if you are not sure your compressor is properly grounded, have the installation checked by a qualified electrician. 120 Volt Models 240 Volt Model= IMPROPER GROUNDING CAN RESULT IN ELECTRICAL SHOCK.

  • Page 12: Break-In Procedures

    Break-in Procedures This procedure is required only once, before the air compressor is put into service. 1. Set the pressure switch lever to the "OFF" position. 2. Plug the power cord into the correct branch circuit receptacle. Serious damage may result if the following 3.

  • Page 13: Normal Operation

    ....OPERA TING PROCEDURES ........Normal Operation 1. Before attaching an air hose or accessory, make sure the pressure switch lever is in the "OFF" position. Close the shut-off valve by turning the knob clockwise, or close air regulator outlet by WATER WILL CONDENSE IN THE AIR TANK.

  • Page 14: Maintenance

    MAINTENANCE .... UNIT CYCLES AUTOMATICALLY WHEN POWER IS ON. DURING MAINTE- NANCE, YOU COULD BE EXPOSED TO VOLTAGE SOURCES, COMPRESSED AIR OR MOVING PARTS. PERSONAL INJURIES CAN OCCUR. UNPLUG THE UNIT AND BLEED OFF ALL AIR TANK PRESSURE BEFORE DOING ANY MAINTENANCE OR REPAIR.

  • Page 15: Service Instructions

    ..SERWCE NsTRUcT ONs i Air Filter - Inspection Check Valve - Inspection and Replacement Replacement NOTE Remove and inspect the check valve at least once a year or more often if the compressor is heavily used. Keep the air filter clean at all times. Do not Moisture and other contaminants in the hot com- operate the compressor with the air filter re-...

  • Page 16: Belt Replacement

    ..SERVICE INSTRUCTIONS Belt- Replacement 3. Remove belt and replace. NOTE The belt must be centered over the grooves on the flywheel and motor pulley. SERIOUS INJURY DAMAGE OCCUR IF PARTS OF THE BODY OR LOOSE ITEMS GET CAUGHT IN MOVING PARTS. 4.

  • Page 17: Motor Overload Protector - Reset

    l..........Sv.RvlcEluSmucrious ......Air Compressor Pump - Motor Overload Protector - Reset Replacement The motor has a manual thermal overload protector. If Disassembly, or service, of the air compressor pump the motor overheats for any reason, the overload beyond what is covered in this manual is not recom- protector will shut off the motor.

  • Page 18: Pulley And Flywheel - Alignment

    ..SERVICE INSTRUCTIONS 13. Remove oil fill plug. Slowly add 16 fluid ounces of Separate Regulator or Shut-Off special compressor oil, Sears 9-16426 or SAE 20- Valve - Replacement 20W SF motor oil. (Under winter-type conditions use single weight SAE 10W oil.) Reinstall oil fill For replacement of separate regulator or shut-off plug.

  • Page 19: Storage

    ..SERVICE INSTRUCTIONS ....NOTE Do not use gasket cement on any gasket 7. Reinstall valve plate and gaskets. surface as this may clog compressor valve 8. Install the cylinder head. Snug mounting screws cavities and flow areas. and studs tight, then torque to 25 to 30 foot pounds starting at the center and working toward the out- side.
  • Page 20 WARNING PERFORMING REPAIRS MAY EXPOSE VOLTAGE SOURCES, MOVING PARTS OR COMPRESSEDAIR SOURCES. PERSONAL INJURY MAY OCCUR. PRIOR TO AI-rEMPTING ANY REPAIRS, UNPLUG THE COMPRESSOR AND BLEED OFF ALL TANK AIR PRESSURE. PROBLEM CAUSE CORRECTION Pressureswitch doesnotshut offmotor Excessivetank pressure- safety Move the pressure switchlever tothe "OFF"...
  • Page 21 CORRECTION PROBLEM CAUSE Loosebelt. KnockingNoise Tightenwingnut untilitcontacts thewasher,plusone more turn. (Continued...) Carbon build-up. Remove the head and valve plate. Cleanthe valve plate and top ofthe piston.(Be surecarbondoes not fall into the cylinder.) Reassemble to 25-30 ft. Ibs. using new gasket and torque screws. Belt too tight.

  • Page 22: Troubleshooting Guide

    TROUBLESHOOTING GUIDE PROBLEM CORRECTION CAUSE Compressor is not supplying Prolongedexcessiveuse of air. Decrease amountof air usage. enough air to operate accesso- ries. Compressor isnotlargeenoughfor air Check the accessoryair requirement.If it is higher requirement. thanthe CFM, SCFM or pressuresuppliedby your air compressor,you need a larger compressor. Restricted air intake filter Clean or replaceair intakefilter.
  • Page 23 i ....SERVICE NOTES...

  • Page 24: How To Order Repair Parts

    SEARS GENERAL MANUAL FOR OIL LUBRICATED CRAFTSMAN SINGLE STAGE AIR COMPRESSORS SERVICE 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.

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