Jet Tools 16-32 Plus operating instructions Maintenance, Troubleshooting

Maintenance

Before doing maintenance on the machine, disconnect it from the electrical supply by pulling out the plug or switching off the main switch! Failure to comply may cause serious injury.

For best results, perform the following recommended procedures on a monthly basis:

•Lubricate conveyor bushings and check for wear.

•Lubricate all moving parts, such as threaded rods, washers, and bushings. (Bearings are pre-sealed and require no lubrication.)

•Clean sawdust from the abrasive strip and the conveyor belt.

•Blow dust from motors and switches. Blow dust from inside of sanding drum.

•Check all set screws for tightness on parts such as bearings, conveyor and couplings.

Troubleshooting

Trouble

Sander will not start.

Conveyor motor stalls.

Conveyor belt does not move.

Conveyor rollers run intermittently.

Abrasive strip comes off drum.

Abrasive strip is loose.

Abrasive loads up prematurely.

Line or groove in stock.

Snipe marks.

Probable Cause	Remedy
	Check plug connection. Make sure
No incoming power.	fuse is not blown/circuit breaker is not
	tripped. Push the circuit breaker
	button on the sander motor to re-set.
Switch is malfunctioning.	Replace switch.
Excessive depth of cut.	Reduce depth of cut; use coarser grit;
	reduce feed rate.
Shaft coupler is loose or unattached.	Adjust shaft coupler.
	Align the shaft flats of the gear motor
Shaft coupling is loose.	and the drive roller and tighten the
	shaft-coupling setscrews.
Slack in abrasive strip on drum.	Remove slack in strip.
Abrasive improperly wrapped.	Read the section on wrapping
	abrasive strips, pages 12-13.
Strip caught on inside edge of slot, or	Re-adjust the strip end in the slot
on inboard side of drum.	and/or trim the abrasive edge.
Strip not cut properly.	Re-cut and re-install the abrasive
	strip.
Excessive depth of cut.	Reduce depth of cut.
Excessive feed rate.	Reduce feed rate.
Inadequate dust collection.	Increase airflow at dust port.
Inadequate abrasive.	Use an open-coat abrasive.
Inconsistent feed rate.	Do not stop or change the feed rate
	while feeding stock.
Improper tension on rollers.	Re-tension rollers (see page 19).

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