Maintenance - Jet 16-32 Plus Operating And Parts Manual

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
recommended procedures on a monthly basis:
•
Lubricate conveyor bushings and check for
wear.
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.
the following
Probable Cause
No incoming power.
Switch is malfunctioning.
Excessive depth of cut.
Shaft coupler is loose or unattached.
Shaft coupling is loose.
Slack in abrasive strip on drum.
Abrasive improperly wrapped.
Strip caught on inside edge of slot, or
on inboard side of drum.
Strip not cut properly.
Excessive depth of cut.
Excessive feed rate.
Inadequate dust collection.
Inadequate abrasive.
Inconsistent feed rate.
Improper tension on rollers.
•
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.
Remedy
Check plug connection. Make sure
fuse is not blown/circuit breaker is not
tripped. Push the circuit breaker
button on the sander motor to re-set.
Replace switch.
Reduce depth of cut; use coarser grit;
reduce feed rate.
Adjust shaft coupler.
Align the shaft flats of the gear motor
and the drive roller and tighten the
shaft-coupling setscrews.
Remove slack in strip.
Read the section on wrapping
abrasive strips, pages 12-13.
Re-adjust the strip end in the slot
and/or trim the abrasive edge.
Re-cut and re-install the abrasive
strip.
Reduce depth of cut.
Reduce feed rate.
Increase airflow at dust port.
Use an open-coat abrasive.
Do not stop or change the feed rate
while feeding stock.
Re-tension rollers (see page 19).
23