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Professional Air-Operated Grease Gun
Owner's Manual
WARNING:
Read carefully and understand all ASSEMBLY AND OPERATION
INSTRUCTIONS before operating. Failure to follow the safety rules and other basic safety
precautions may result in serious personal injury.
Item #75357
READ & SAVE THESE INSTRUCTIONS
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Table of Contents
Related Manuals for Roughneck 75357
Summary of Contents for Roughneck 75357
- Page 1 Professional Air-Operated Grease Gun Owner’s Manual WARNING: Read carefully and understand all ASSEMBLY AND OPERATION INSTRUCTIONS before operating. Failure to follow the safety rules and other basic safety precautions may result in serious personal injury. Item #75357 READ & SAVE THESE INSTRUCTIONS...
- Page 2 ® Thank you very much for choosing a Roughneck product! For future reference, please complete the owner’s record below: Serial Number/Lot Date Code: ________________________________ Purchase Date: ____________________________________________ Save the receipt, warranty, and this manual. It is important that you read the entire manual to become familiar with this product before you begin using it.
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Page 3: Table Of Contents
Table of Contents Intended Use ............................4 Packaging Contents ..........................4 Technical Specifications ........................4 Important Safety Information ....................... 4 Specific Operation Warnings ....................... 6 Main Parts of Grease Gun ........................7 Assembly Instructions .......................... 7 Before Each Use ..........................11 Operating Instructions ........................ -
Page 4: Intended Use
Intended Use • Roughneck’s Professional Air-Operated Grease Gun is used to force lubricant out of the coupler into the grease fitting. • Heavy-duty aluminum die cast head with internal bore precision honed for rapid action. • Ergonomic pistol grip and acute angle design is provided for ease of operation, especially in narrow spaces. - Page 5 industrial equipment. There are certain applications for which this equipment was designed. This product will be safer and do a better job at the capacity for which it was intended. DO NOT use this equipment for a purpose for which it was not intended. •...
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Page 6: Specific Operation Warnings
• Secure the work with clamps or a vise instead of your hand when practical. This safety precaution allows for proper tool operation using both hands. ⚠CAUTION GREASE GUN USE AND CARE • Do not force the grease gun. Products are safer and do a better job when used in the manner for which they are designed. -
Page 7: Main Parts Of Grease Gun
Main Parts of Grease Gun Subassembly 1. Gun head 2. Grease gun barrel 3. Trigger 4. Inlet valve / male quick connect coupler 5. Rigid steel extension 6. Grease coupler Assembly Instructions Setting up the Grease Gun Head (Refer to the Parts Diagram.) Note: Use Teflon tape while connecting rigid steel extension (38) to the gun head (1) and grease coupler (37) to the rigid steel extension (38). - Page 8 2. Thread tighten the grease coupler (37) to the other end of the rigid steel extension (38). 3. All connections should be tight. ⚠WARNING • Grease or empty cartridge in barrel is under pressure from the internal spring, be alert when removing head of the barrel.
- Page 9 4. Remove any empty cartridges. Always follow the steps listed above in preparing to load your grease gun before proceeding to the one of the following loading methods. There are three ways to load the grease gun: • Cartridge Loading •...
- Page 10 5. Reassemble the gun head (1) to the grease gun barrel (23) by turning it clockwise. Bulk Fill 1. Completely draw back the plunger handle and lock it in place. 2. Remove the gun head (1) from the grease gun barrel (23) by turning it counter-clockwise. 3.
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Page 11: Before Each Use
3. Operate the filler pump to fill the grease gun barrel (23). 4. Disconnect the grease gun from the filler pump. Removing Trapped Air After filling grease gun, trapped air should be removed using these steps: 1. After filling the grease gun barrel (23) with grease by any one method described previously, while reassembling the gun, keep at least 2-3 turns open. -
Page 12: After Each Use
1. Connect the air hose to the air inlet (8) on the grease gun. 2. The grease coupler (37) provided at the end of the extension (38) has a jaw-type construction. The coupler jaws will snap on to a grease fitting and maintain a tight fit. 3. -
Page 13: Troubleshooting
Troubleshooting ⚠WARNING • Disconnect from air supply before changing accessories, cleaning, or servicing. Use the following table to troubleshoot problems before contacting service personnel or your local dealer. If the problem continues after troubleshooting, call your local dealer for assistance. Failure Possible Cause Corrective Action... -
Page 14: Parts Diagram
Parts Diagram Parts List Reference Part Number Part Description Quantity Gun head Body Piston Adapter O-Ring holder O-ring O-ring Inlet valve/ male quick connect coupler Screw Screw Nylock nut Trigger Push button Spring trigger Seal O-ring O-ring holder Rubber washer Non-return valve body Outlet spring Page 14 of 17... -
Page 15: Replacement Parts
Reference Part Number Part Description Quantity Steel ball Seat Grease gun barrel O-ring Spring (small) Rubber washer Bulk loader valve Slotted spring pin Bush Star washer Stud Spring Spring (large) Silencer Strainer mesh Grease coupler Rigid steel extension Handle Replacement Parts For replacement parts and technical questions, please call Customer Service at 1-800-222-5381. -
Page 16: Limited Warranty
Northern Tool and Equipment Company, Inc. ("We'' or "Us'') warrants to the original purchaser only ("You'' or "Your") that the Roughneck product purchased will be free from material defects in both materials and workmanship, normal wear and tear excepted, for a period of one year from date of purchase. - Page 17 Distributed by: Northern Tool & Equipment Company, Inc. Burnsville, Minnesota 55306 www.northerntool.com Made in India Page 17 of 17...