Harbor Freight Tools 280 User Manual - Page 13

Troubleshooting Problem Possible Causes Decreased output. 1. Not enough air pressure and/ or air flow. Likely Solutions 1. Check for loose connections and make sure that air supply is providing enough air flow (CFM) at required pressure (PSI) to the tool's air inlet. Do not exceed maximum air pressure. 2. Obstructed trigger. 2. Clean around trigger to ensure free movement. 3. Incorrect lubrication or not enough lubrication. 3. Lubricate using air tool oil and grease according to directions. 4. Blocked air inlet screen (if equipped). 4. Clean air inlet screen of buildup. 5. Air leaking from loose housing. 5. Make sure housing is properly assembled and tight. Housing heats during use. 6. Mechanism contaminated. 1. Incorrect lubrication or not enough lubrication. 6. Have qualified technician clean and lubricate mechanism. Install in-line filter in air supply as stated in Initial Set Up: Air Supply. 1. Lubricate using air tool oil and grease according to directions. 2. Worn parts. Severe air 1. Cross-threaded housing leakage. components. (Slight air leakage is normal, 2. Loose housing. especially on older tools.) 3. Damaged valve or housing. 2. Have qualified technician inspect internal mechanism and replace parts as needed. 1. Check for incorrect alignment and uneven gaps. If cross-threaded, disassemble and replace damaged parts before use. 2. Tighten housing assembly. If housing cannot tighten properly, internal parts may be misaligned. 3. Replace damaged components. 4. Dirty, worn or damaged valve. 4. Clean or replace valve assembly. Decreased sanding Dull or caked sandpaper. Replace sandpaper. performance Follow all safety precautions whenever diagnosing or servicing the tool. Disconnect air supply before service. Item 00280 For technical questions, please call 1-888-866-5797. Page 13