JET Tools JAT-201 User Manual - Page 8

NOTE: Do not overtighten. Fasteners with critical torque settings should be fully tightened with a torque wrench. Maintenance Lubrication The impact wrench should be lubricated daily (or before each use) with air tool oil through the air inlet. During continual operation, it should be reoiled every 1 to 2 hours. This can be done with an in-line oiler, or manually. If done manually, proceed as follows: 1. Disconnect air hose from tool. 2. Place 4 or 5 drops of air tool oil into air inlet (Figure 1). NOTE: Air tool oil not provided; it is available at most major hardware and tool stores. SAE #10 oil or sewing machine oil may be used as a substitute. Do not use detergent oil. 3. Re-connect air. Run impact wrench at low throttle without load for a few seconds to distribute the oil throughout tool. 4. When finished operating impact wrench, disconnect air hose. Wipe off housing with a dry cloth. Place 4 or 5 drops of air tool oil into air inlet; re-connect air and run the tool for a few seconds to distribute the oil. Disconnect air. The impact clutch in the housing is pre-greased and should not require further lubrication. Storage Avoid storing the impact wrench in very humid locations which promotes rusting of internal mechanisms. Always oil the tool and disconnect air hose before storage. Air system requirements 1. Use proper air hose size (refer to tool specifications). The hose should be just long enough to serve the working area. Excessive hose length will cause pressure drop. 2. Make sure air compressor supplies clean, dry air at correct CFM for the impact wrench. 3. Set air pressure to 90 psi. Excess air pressure and/or unclean air will shorten the tool's life and may create a hazardous situation. 4. Drain water from air compressor tank daily, as well as any condensation from air lines. Water in the air line may enter the tool and cause damage. 5. Change filters on the air system on a regular basis. 6. Air-line pressure may be increased accordingly to compensate for extra-long air hoses (usually over 25 feet). Inside diameter of hose should be minimum 3/8-inch. General Air Tool Information If the air tool is not performing according to specifications, the following are among the most common causes. (See also "Troubleshooting" section.) • Contaminated air such as a dirty air system or water in the system. • Using wrong size tool for the job. • Poor maintenance practices, such as using excessive air pressure or air volume. • Improper or no lubrication. Rule of Thumb If it takes more than 8 seconds to tighten or loosen a bolt or nut with an air impact wrench at maximum setting, the air wrench is too small or the air compressor CFM is not powerful enough for the job. Continued use in either capacity will cause damage to the tool. Tool Pressure JET Air Tools operate on 70-to-100 psi (pounds per square inch) air pressure measured at the tool when the tool is operating. Set tool to 90 psi unless indicated otherwise. Pressure in excess of 100 psi will shorten the life of the tool. Air System Recommendations Equip the air compressor intake with a replaceable air filter that can be easily cleaned. 8 JAT-200,201,202 Impact Wrenches