Why is my Jet 723540B Sander so noisy and vibrating?
If your Jet Sander is making a loud, repetitive noise or vibration, inspect fasteners and tighten where needed. If the motor fan is hitting the cover, tighten the fan or shim the fan cover. Ensure the sander is on a level floor; shim if needed.
How to fix a Jet Sander conveyor belt that slips?
If the conveyor belt slips on the drive roller of your Jet Sander, adjust the belt tension, and reduce the depth of cut and/or feed rate.
Why does my Jet 723540B leave ripples on the surface?
If you notice ripples in the sanded surface from your Jet Sander, and they are non-uniformly spaced, it is likely due to an uneven feed rate, conveyor belt slipping, the board slipping on the conveyor belt, or the conveyor motor stalling. If the ripples are uniformly spaced, it could be due to conveyor table flexing or vibration. In this case, reduce the depth of cut and/or feed rate and check for loose bolts, loose shaft coupling set screws, or an out-of-balance drum.
What causes a Jet 723540B's drum motor to stall and blow fuses?
If the drum motor on your Jet Sander stalls, resulting in blown fuses or a tripped circuit, inspect the connections on the motor for loose or shorted terminals or worn insulation. Correct any low voltage conditions. Install the correct fuse or circuit breaker.
What causes the drum motor to overheat on a Jet 723540B?
If the drum motor of your Jet Sander overheats, clean the motor fan with compressed air to restore normal air circulation. If the motor is overloaded, have the controls inspected and repaired.
Why is my Jet Sander burning the wood?
If your Jet Sander is burning wood, re-wrap the abrasive strip to ensure it is not overlapped. Clean the abrasive if it is loaded. If the depth of cut is excessive for the fine grit, use a coarser grit or reduce the depth of cut. Increase the feed rate if it is too slow, and replace the abrasive if it is worn.
How to troubleshoot a Jet 723540B drum motor that won’t start?
If the drum motor of your Jet Sander won’t start when the switch is activated, check the connections at the plug or circuit panel to ensure there is incoming current. Make sure the safety key is installed in the switch. Check the power line for proper voltage and inspect all lead connections on the motor for loose or open connections. If the issue persists, the switch may be malfunctioning and need replacement.
What to do if the drum motor won’t start and fuses blow in my Jet 723540B Sander?
If the drum motor of your Jet Sander won’t start and fuses blow or circuit breakers trip, inspect the cord or plug for damaged insulation and shorted wires. Also, inspect all connections on the motor for loose or shorted terminals or worn insulation. Finally, ensure you have the correct fuse or circuit breaker installed in the power line.
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