JET Tools JAT-202 User Manual - Page 10

Troubleshooting JAT-200/201/202 Impact Wrenches Any disassembly of the tool should be done by qualified service personnel. For problems not addressed below, contact JET technical service at 800-274-6846. Problem Possible cause Remedy Tool will not start. Excessive or abnormal vibration. Abnormal sound. Loss of power; erratic action. Impacts sufficiently, but will not remove fastener. Will not impact. Housing becomes hot during operation. Air valve closed or obstructed. Dirt or gum deposits on components. Rotor vanes or other components are worn. Trigger inoperable. Bearing(s) worn. Bearing(s) worn. Loose fasteners. Low air pressure. Moisture or obstruction in air hose. Improper size of air transmission lines, hoses, fittings, or couplings. Dirt or gum deposits on components. Rotor vanes are worn. Worn socket. Worn impact mechanism. Damaged impact mechanism. Insufficient lubrication. Worn components. Open valve; clear any obstructions. Flush tool with gum solvent. If problem persists, disassemble, clean and lubricate internal parts. Replace worn components. (Replace vanes as an entire set.) Clean trigger mechanism to ensure free movement. Replace mechanism if needed. Disassemble and inspect bearing. Grease or replace as needed. Disassemble and inspect bearing. Grease or replace as needed. Check tightness of housing and external fasteners. Verify compressor has proper CFM rating for tool. Check compressor regulator setting; set air pressure to 90 psi. Set regulator dial on tool to maximum setting. Check for loose connections. Air supply must be clean and dry. Clean out air hose(s) and remove any kinks or bends. Use appropriate-sized air lines/hoses. Verify proper fittings/couplings. Flush tool with gum solvent. Check and clean air filter on compressor. Clean external areas of tool. If problem persists, disassemble, clean and lubricate internal parts. Replace vanes (entire set). Use good condition sockets. Replace components. Replace mechanism. Lubricate with air tool oil. Replace components as needed. 10 JAT-200,201,202 Impact Wrenches