WARRANTY AND SERVICE WMH Tool Group, Inc., warrants every product it sells. If one of our tools needs service or repair, one of our Authorized Service Centers located throughout the United States can give you quick service. In most cases, any of these WMH Tool Group Authorized Service Centers can authorize warranty repair, assist you in obtaining parts, or perform routine maintenance and major repair on your JET tools.
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1. Read and understand this entire manual before attempting assembly or operation. 2. Read and understand the warnings posted on the tool and in this manual. Failure to comply with all of these warnings may cause serious injury. 3. Replace the warning labels if they become obscured or removed. 4.
24. Use recommended accessories; improper accessories may be hazardous. 25. Maintain tools with care. Keep the drill clean and oiled for best and safest performance. Specifications Stock Number.............. JNS-4031.......... JNS-4031KL Drilling Cap (in.)..............3/8............3/8 Free Speed (no load)(RPM)..........1800............1800 Required Air Pressure (PSI)............
Unpacking The model 4031 includes a chuck key. The model 4031KL does not include a chuck key. Any missing parts or damage should be reported immediately to your JET distributor. Read this ® instruction manual thoroughly for operation, maintenance and safety instructions. Operation 1.
Troubleshooting Trouble Probable Cause Remedy Air pressure is too low. Adjust air pressure to 90psi. Air lines are twisted, or there is a Untwist or clean out air lines. blockage in them. Drill does not operate at normal speed. Air compressor is malfunctioning, or is Replace air compressor.