JET Tools JAT-402 User Manual - Page 7

Setup and Assembly Any missing parts or damage should be reported immediately to your JET® distributor. Do not use a damaged tool. Read this instruction manual thoroughly for operation, maintenance and safety instructions. Box contents: 1 Die grinder 2 Wrenches 1 Operation and parts manual 1 Warranty card Operation The die grinder must be properly lubricated before operation. See "Lubrication" section. Figure 1 (JAT-401 shown) 1. Loosen collet nut using the two wrenches on the flats of the collet nut and spindle (Figure 1). Keep wrench on spindle stationary while turning wrench on collet nut. 2. Fully insert 1/4-inch shank of grinding attachment (not included) into collet, and retighten collet nut securely with the two wrenches. 3. Remove protective cap from air inlet (Figure 1). If an in-line oiler is not being used, add 4 or 5 drops of air tool oil (not included) into the air inlet. 4. Blow out air line to remove any dirt or moisture, then connect air supply hose to tool. Set air pressure to 90 psi. IMPORTANT: Connecting a quick-change coupling directly to the tool is not recommended, as vibration may cause the connection to fail. Instead, add a leader hose and install any quick-change couplings farther down the line. 5. Adjust speed by turning regulator screw beneath housing, with a flat blade screwdriver. 6. Grip tool with both hands and push safety lever forward to release throttle lever. Gently press throttle lever. Pressure against throttle lever determines rotation speed of tool (clockwise). 7. Release throttle lever to stop die grinder. Maintenance Lubrication The die grinder 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. 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 die grinder at low throttle without load for a few seconds to distribute the oil throughout tool. 4. When finished operating die grinder, 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 tool for a few seconds to distribute the oil. Disconnect air. Periodically apply 1 or 2 drops of air tool oil to throttle lever and safety lever pivots, and work lever to distribute the oil. Storage Avoid storing the die grinder in very humid locations which promotes rusting of internal mechanisms. Always oil the tool and disconnect air hose before storage. JET 7