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OWNERS MANUAL FOR
TWO-STAGE
AIR COMPRESSOR
Model No.
L10120H2-2
Specification Chart
Model No. L10120H2-2
Horsepower 10
Voltage/Hertz/Phase 240/480V/60 HZ/3 PHASE
Minimum Branch Circuit Requirement 30 Amp
*Fuse Type Time Delay
Air Tank Capacity 120 Gal. ASME
Approximate Cut-in Pressure 140 PSIG
Approximate Cut-out Pressure 175 PSIG
SCFM @ 175 PSIG 34.2
Magnetic Starter Required (Included on Compressor)
*A circuit breaker is preferred. Use only a fuse or circuit breaker that is the same rating as
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TABLE OF CONTENTS Page Page SAFETY GUIDELINES ................................... 2 MAINTENANCE ............................................. 14 WARNING CHART ......................................... 3-5 SERVICE INSTRUCTIONS ............................. 15-16 Air Filter-Inspection and Replacement .......... 15 SPECIFICATIONS .......................................... 6 Oil-Checking and Changing .......................... 15 Recommended Oils ..................................... 15 GLOSSARY ...
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IMPORTANT SAFETY INSTRUCTIONS SAVE THESE INSTRUCTIONS IMPROPER OPERATION OR MAINTENANCE OF THIS PRODUCT COULD RESULT IN SERIOUS INJURY AND PROPERTY DAMAGE. READ AND UNDERSTAND ALL WARNINGS AND OPERATING INSTRUCTIONS BEFORE USING THIS EQUIPMENT. HAZARD RISK OF EXPLOSION OR FIRE WHAT CAN HAPPEN HOW TO PREVENT IT IT IS NORMAL FOR ELECTRICAL CONTACTS WITHIN THE ALWAYS OPERATE THE COMPRESSOR IN A WELL VENTI- MOTOR AND PRESSURE SWITCH TO SPARK. LATED AREA FREE OF COMBUSTIBLE MATERIALS, GASOLINE OR S
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HAZARD RISK FROM FLYING OBJECTS WHAT CAN HAPPEN HOW TO PREVENT IT THE COMPRESSED AIR STREAM CAN CAUSE SOFT TISSUE ALWAYS WEAR ANSI Z87.1 APPROVED SAFETY GLASSES DAMAGE TO EXPOSED SKIN AND CAN PROPEL DIRT, CHIPS, WITH SIDE SHIELDS WHEN USING THE COMPRESSOR. LOOSE PARTICLES AND SMALL OBJECTS AT HIGH SPEED, NEVER POINT ANY NOZZLE OR SPRAYER TOWARD ANY RESULTING IN PROPERTY DAMAGE OR PERSONAL INJURY. PART OF THE BODY OR AT OTHER PEOPLE OR ANIMALS. ALWAYS TURN THE COMPRESSOR OFF AND BLEED PRES- SURE
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HAZARD RISK FROM MOVING PARTS WHAT CAN HAPPEN HOW TO PREVENT IT MOVING PARTS SUCH AS THE PULLEY, FLYWHEEL AND BELT NEVER OPERATE THE COMPRESSOR WITH GUARDS OR CAN CAUSE SERIOUS INJURY IF THEY COME INTO CONTACT COVERS WHICH ARE DAMAGED OR REMOVED. WITH YOU OR YOUR CLOTHING. ATTEMPTING TO OPERATE COMPRESSOR WITH DAMAGED ANY REPAIRS REQUIRED ON THIS PRODUCT SHOULD BE OR MISSING PARTS OR ATTEMPTING TO REPAIR COM- PERFORMED BY AUTHORIZED SERVICE CENTER PERSON- NEL.
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SPECIFICATIONS Refer to cover page for the specifications 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 protected by fuses, use dual element time delay fuses, as noted in specification chart. Improper electrical installation of this product may void its warranty and your fire insurance. Have circuit wiring performed by qualified per- sonnel such as a licensed elec
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GENERAL INFORMATION Separate air transformers which combine the functions of You have purchased a complete compressor outfit con- air regulation and/or moisture and dirt removal should sisting of an air compressor, air tank, electric motor, and be used where applicable. associated controls and instruments. The outfit you have selected is a stationary model and contains a two stage A regularly scheduled program of preventive mainte- air compressor pump. nance will help provide the long life that
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DESCRIPTION OF OPERATION Drain Valve: Drain Valve: Drain Valve: Drain Valve: Drain Valve: At the base of the air tank to drain to restart freely. When the motor stops running, air will condensation at the end of each use. be heard escaping from the valve for a few seconds. No air should be heard leaking when the motor is running. ON/AUTO-OFF Switch: ON/AUTO-OFF Switch: ON/AUTO-OFF Switch: ON/AUTO-OFF Switch: ON/AUTO-OFF Switch: Turn this switch ON to provide automatic power to the pressure s
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INSTALLATION AND BREAK-IN PROCEDURES Air Compressor Anchoring Location of the Air Compressor Methods THE PUMP ASSEMBLY DOES NOT PRO- VIDE ADEQUATE STABILITY OR SUPPORT VIBRATION CAN WEAKEN THE AIR TANK FOR LIFTING THE UNIT. IF THE OUTFIT AND CAUSE AN EXPLOSION. THE COM- MUST BE MOVED, USE THE TANK FOR PRESSOR MUST BE PROPERLY MOUNTED LIFTING. AS ILLUSTRATED BELOW. This compressor should be permanently mounted in place on a level floor. Operate the air compressor in a clean, dry and well ventilat
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INSTALLATION AND BREAK-IN PROCEDURES Wiring Instructions If your compressor unit is not equipped with a plug-in type 2. The supply line has the same electrical characteristics power cord, perform electrical wiring according to the (voltage, cycle, and phase) as motor. following instructions: Wiring must be such that full 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
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INSTALLATION AND BREAK-IN PROCEDURES Air Filter Installation To install air filter: Do not operate compressor without air Insert threaded end of the air filter assembly into elbow filter assembly installed as this will and tighten until snug. cause damage to the compressor. Break-In Procedures Additional Regulators and Controls Since the air tank pressure is usually greater than that Serious damage may result if the fol- which is needed, a separate regulator is usually employed lowing break-in i
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INSTALLATION AND BREAK-IN PROCEDURES Note Note Note Note Note Piping For underground installation, bury air lines below the frost line and avoid pockets where condensation can gather and freeze. Apply pressure before un- derground lines are covered to make Plastic or PVC pipe is not designed for use with compressed air. Regardless of its indi- sure all pipe joints are free from leaks. cated pressure rating, plastic pipe can burst It is recommended that a flexible coupling be installed from air p
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OPERATING PROCEDURES 1. Before attaching an air hose or accessory, make sure the When You Are Finished: outlet valve is in the closed position. On units equipped with a pressure switch lever make sure the switch is in the 6. Turn the compressor unit off. OFF position. 7. Turn the regulator counterclockwise and set the outlet pressure to zero. Compressed air from the outfit may contain 8. Remove the air tool or accessory. water condensation and oil mist. Do not spray unfiltered air at an item tha
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MAINTENANCE UNIT CYCLES AUTOMATICALLY WHEN POWER IS ON. DURING MAINTENANCE, YOU COULD BE EXPOSED TO VOLTAGE SOURCES, COMPRESSED AIR OR MOVING PARTS. PERSONAL INJURIES CAN OCCUR. DISCONNECT POWER SOURCE AND BLEED OFF ALL AIR TANK PRESSURE BEFORE DOING ANY MAINTENANCE OR REPAIR. NEVER OPERATE THE UNIT WITH THE BELT GUARD REMOVED. To ensure efficient operation and longer life of the air compressor outfit, a routine maintenance schedule should be prepared and followed. The following routine mainten
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SERVICE INSTRUCTIONS Air Filter - Inspection and Oil Chart Replacement Oil Room or Ambient NOTE NOTE NOTE NOTE NOTE Weight Type Temperature Keep the air filter clean at all times. Do not operate the compressor with the air Cold Climates - 10º F 20 Wt. Reciprocating filter removed. Non-detergent Moderate Climates - petroleum based A dirty air filter will not allow the compressor to operate 30º to 80º F 30 Wt. compressor rated or at full capacity. Before you use the compressor, chec
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SERVICE INSTRUCTIONS 6. 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. SERIOUS INJURY OR DAMAGE MAY OCCUR 7. Apply sealant to the check valve threads. Reinstall IF PARTS OF THE BODY OR LOOSE ITEMS the check valve. Do not overtighten. GET CAUGHT IN MOVING PARTS. NEVER OPERATE THE OUTFIT WITH THE BELT 8. Replace the outlet tube and tighten top and bottom GUARD REMOVED. THE BELT GUARD nuts. Do n
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SERVICE INSTRUCTIONS Motor Pulley and Flywheel Additional Service Alignment Disassembly or service of the air compressor beyond what is covered in this manual is not recommended. 1. Remove outer beltguard - To remove, loosen and remove beltguard screws located at top of beltguard. If additional service is required, contact your nearest Insert a flat bladed screwdriver and pry beltguard Authorized Warranty Service Center. apart. 2. Place a straight edge along the outside face of the compressor fl
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TROUBLESHOOTING GUIDE PERFORMING REPAIRS MAY EXPOSE VOLTAGE SOURCES, MOVING PARTS OR COMPRESSED AIR SOURCES. PERSONAL INJURY MAY OCCUR. PRIOR TO ATTEMPTING ANY REPAIRS, DISCONNECT POWER SOURCE FROM THE COMPRESSOR AND BLEED OFF ALL TANK AIR PRESSURE. PROBLEM CAUSE CORRECTION Excessive tank pressure - safety Move the pressure switch lever to the "OFF" position. Pressure switch does not shut off mo- valve pops off (units with ON- If the outfit doesn’t shut off, and the electrical contacts tor whe
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TROUBLESHOOTING GUIDE CORRECTION PROBLEM CAUSE Motor will not run. Motor overload protection switch has Let motor cool off for 10-15 minutes and overload tripped. protection switch will reset automatically. If the over- load still trips, check for defective capacitor. Tank pressure exceeds pressure switch Motor will start automatically when tank pressure "cut-in pressure". drops below "cut-in pressure" of pressure switch. Check valve stuck open. Remove and clean or replace. DO NOT OVERTIGHTEN. L
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TROUBLESHOOTING GUIDE CORRECTION PROBLEM CAUSE Compressor is not supplying Loose belt. Adjust belt tension. enough air to operate accesso- Check and replace if required. Hole in hose. ries. (Continued) Remove and clean or replace. Check valve restricted. Air leaks. Tighten fittings. (See "Air Leaks" section of "Trou- bleshooting Guide".) Knocking noise. Remove and clean or replace. Defective check valve. Loose pulley. Tighten pulley set screw, 145 to 165 in.-lbs. Maintain prescribed oil level. A
