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THIS MANUAL CONTAINS IMPORTANT INFORMATION REGARDING SAFETY, OPERATION, MAINTENANCE AND 
STORAGE OF THIS PRODUCT. BEFORE USE, READ CAREFULLY AND UNDERSTAND ALL CAUTIONS, WARNINGS, 
INSTRUCTIONS AND PRODUCT LABELS. FAILURE TO DO SO COULD RESULT IN SERIOUS PERSONAL INJURY 
AND/OR PROPERTY DAMAGE.
IF YOU SHOULD HAVE ANY QUESTIONS OR EXPERIENCE A PROBLEM WITH YOUR SNAP-ON   
PRODUCT, DO NOT RETURN THIS PRODUCT TO THE STORE. PLEASE CALL OUR CUSTOMER SERVICE 
DEPARTMENT AT 

1-800-423-3598

. BEFORE YOU CALL, HAVE THE FOLLOWING INFORMATION AVAILABLE: 

MODEL No., DATE PURCHASED AND STORE LOCATION. AN ALLTRADE REPRESENTATIVE CAN RESOLVE YOUR 
PROBLEM OVER THE PHONE.

3 GALLON AIR COMPRESSOR

INSTRUCTION MANUAL

MODEL #240039

Summary of Contents for 240039

Page 1: ...PERSONAL INJURY AND OR PROPERTY DAMAGE IF YOU SHOULD HAVE ANY QUESTIONS OR EXPERIENCE A PROBLEM WITH YOUR SNAP ON PRODUCT DO NOT RETURN THIS PRODUCT TO THE STORE PLEASE CALL OUR CUSTOMER SERVICE DEPAR...

Page 2: ...TIAL SETUP BREAK IN PROCEDURE 15 16 STARTUP 16 SHUTDOWN AND STORAGE 17 MAINTENANCE AND CLEANING 17 19 TROUBLESHOOTING GUIDE 19 23 PARTS LIST 24 26 PARTS DIAGRAM 27 LIMITED WARRANTY 28 31 CONGRATULATIO...

Page 3: ...cycle meaning that the compressor motor can run about 50 of the total time it is being used to supply air to a tool During the ON time the motor is running to pressurize the tank During the OFF time...

Page 4: ...DANGER WARNING CAUTION NOTE This is the safety alert symbol It is used to alert you to potential personal injury hazards Obey all safety mes sages that follow this symbol to avoid possible injury or...

Page 5: ...sor Check to see that all nuts bolts and fittings are secure before putting this air com pressor into service If you have any questions or require assistance with dam aged or missing parts please cont...

Page 6: ...arts before use of any air tools or attachments A guard or other part that is damaged should be carefully checked to ensure that it will operate properly and perform its intended function Check for mi...

Page 7: ...uld lead to a violent tank explosion Periodically inspect the tanks for unsafe conditions such as corrosion cracked welds and leaks Release air slowly when draining moisture or depressurizing the air...

Page 8: ...plug with wet hands Do not pull on the electri cal cord to disconnect from the power outlet Store air compressor indoors when not in use Any electrical wiring or repairs performed on this air compress...

Page 9: ...e position to prevent accidental movement of the unit Never operate air compressor on a roof or other elevated position Use additional air hose to reach high locations RISK OF PROPERTY DAMAGE WHEN TRA...

Page 10: ...t is for use on a nominal 120 volt circuit and has a three prong grounding plug that looks like the plug illustrated in Figure 1 A temporary adapt er similar to the adapter illustrated in sketch B See...

Page 11: ...xtension cord will cause permanent damage to internal switches and overheating of the electric motor or its capacitor Use an additional length of air hose rather than an extension cord If you must use...

Page 12: ...er use this compres sor with a damaged or worn electrical cord or extension cord Inspect all electrical cords regularly Never use in or near water or in any environment where electric shock is possibl...

Page 13: ...tor Shroud 4 Pressure Regulator Knob 5 Air Tank Pressure Gauge 6 Outlet Pressure Gauge 7 Air Outlet Port 8 Safety Relief Valve 12 1 12 10 13 3 11 9 on other side of tank 9 Air Tank Drain Valve on othe...

Page 14: ...se discharge pressure and counter clockwise to decrease discharge pressure Please refer to the air delivery requirements of your tools for the proper pressure settings CAUTION Be careful not to overti...

Page 15: ...the fitting securely NOTE Air tank will not pressurize while drain valve is open 10 AIR INTAKE FILTER This compressor is equipped with an externally accessible air intake filter that is designed to c...

Page 16: ...o the AUTO ON position and run the air compressor for a period of 20 minutes to break in the air pump 8 With the compressor still running at the end of the 20 minute break in period close turn counter...

Page 17: ...check for damage to the hose 7 Plug power cord directly into a properly grounded power source of the correct voltage see Grounding Instructions on page 9 of this instruction manual 8 Turn the compres...

Page 18: ...NTENANCE AND CLEANING Disconnect AIR COMPRESSOR from power source and bleed off all air pressure before attempting any maintenance or repair WHEN PERFORMING ANY MAINTENANCE OR SERVICE The air compress...

Page 19: ...difficult to move CHECKING AIR FILTER ELEMENT 1 The air compressor must be turned OFF 2 Disconnect compressor from the power source 3 Open tank drain to bleed off all air pressure before attempting an...

Page 20: ...Disconnect any other electrical appliances from circuit or operate air compressor on its own branch circuit Wrong gauge wire or length Check chart in instruction manual for proper gauge of extension...

Page 21: ...aches cut out pressure and safety relief valve activates Air compressor is incorrectly Limit the air pressure to the capacity of the air sized compressor Either use a smaller tool or a larger air comp...

Page 22: ...it should be replaced Excessive tank pressure Defective motor pressure switch Replace AIR LEAKS AT PUMP PROBABLE CAUSE SOLUTION Blown gaskets Replace blown gaskets and torque head bolts to 20 ft lbs C...

Page 23: ...nt higher than the CFM or pressure supply of the air compressor you need a larger air compressor AIR COMPRESSOR NOT MAKING ENOUGH AIR PROBABLE CAUSE SOLUTION Restricted air intake filter Clean or repl...

Page 24: ...9 870931 9 CYLINDER GASKET 1 10 870931 10 CYLINDER 1 11 870931 11 SCREW M6X18 1 12 870931 12 CONNECTING ROD PLATE 1 13 870931 13 PISTON 1 14 870931 14 CONNECTING ROD 1 15 870931 15 SCREW M4X20 1 16 8...

Page 25: ...1 33 ROTOR 1 34 870931 34 BEARING 6004 1 35 870931 35 STATOR 1 36 870931 36 WASHER 104 1 37 870931 37 BACK SEAT 1 38 870931 38 CENTRIFUGAL SWITCH 1 39 870931 39 SCREW M5X10 2 40 870931 40 FAN 1 41 870...

Page 26: ...8 SAFETY VALVE 1 59 870931 59 STRAIN RELIEF 2 60 870931 60 CONNECT NPT1 4X48 1 61 870931 61 RELIEF TUBE 1 62 870931 62 RELIEF NUT 1 63 870931 63 POWER CORD 1 64 870931 64 CABLE CONNECTOR U 2 65 870931...

Page 27: ...26 PARTS DIAGRAM...

Page 28: ...ereof is modi fied or altered This warranty does not apply to any other product and or component thereof manufactured or distributed by Alltrade and does not apply to products and or components thereo...

Page 29: ...or tem peratures improper storage or freight damage Parts damaged or worn by operation in dusty environments are not warranted Failure to follow recommended operating and maintenance procedures also...

Page 30: ...LUDED AND DISCLAIMED BY ALLTRADE AND OR ITS REPRESENTATIVES PURCHASER KNOWINGLY AND WILLINGLY WAIVES ANY AND ALL SUCH WARRANTIES AND RIGHTS CLAIMS AND OR CAUSES OF ACTION ARISING THEREFROM OR BASED TH...

Page 31: ...30 If your product is not covered by this warranty please call our Customer Service Department at 1 800 423 3598 for general repair information and charges...

Page 32: ...FOR CUSTOMER SERVICE 1 800 423 3598 Printed in China Distribution Returns 2018 Alltrade Tools LLC Reno NV 89508 www powerbuilt com MADE IN CHINA...

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