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The tool should be stored in a clean and dry environment. Recommended lubricants: Use John Deere AT-4003 air tool oil or any other high grade turbine oil containing moisture absorbent, rust inhibitors, metal wetting agents and an EP (extreme pressure) additive. 3/8-Inch Power Ratchet Wrench Operator's Manual Troubleshooting Troubleshooting Loss of Power 1. Low air pressure 2. Improper lubrication or dirt build up 3. Worn motor parts, or other problems 1. Check air supply. For rated performance,