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Troubleshooting (Mechanical)
Trouble Probable Cause Remedy
Saw arbor won’t run.
Saw arbor guard or rear guard not
closed.
Check and close guards.
Caterpillar won’t
move.
Variable speed belt too loose, or
dropped.
Adjust variable speed belt tension or
replace belt. See page 11.
Workpiece slips. Pressure roller too high. Lower the pressure roller.
Convex cut causes
jointing failure.
Saw blade too dull. Replace blade (page 10).
Fence is bumped. Adjust fence (page 12).
Concave cut causes
jointing failure.
Saw blade too dull. Replace blade (page 10).
Fence is bumped. Adjust fence (page 12).
Uneven product
thickness at front and
rear end.
Saw blade too dull. Replace blade (page 10).
Fence is bumped. Adjust fence (page 12).
Abnormal speed of
link chain conveyor
No oil in lubricator. Fill tank with oil (page 13).
Oil distributor jammed. Blow off dust with air gun.
Variable speed belt loosened. Adjust belt tension (page 11).
Wood is not cut off. Saw blade position is too high to cut.
Lower saw blade 0.5 to 1.5mm below
surface of caterpillar (page 12).
Insufficient power
causes blade to stop.
Using same saw blade for trimming
and cutting off.
Use correct saw blade.
Saw arbor belt is loosened. Adjust arbor belt tension.
Finished cut not
square.
Fence not square. Square fence (page 12).
Damage caused by poor lubrication
on chain rail and chain block.
Replace chain rail and chain block,
and maintain proper oil level.
Power light on, but
machine won’t start.
Emergency stop button not released. Check pushbutton (page 9).
Safety door cover not closed. Close door.
Overload relay tripped. Replace R1.
Start switch not functioning. Replace MS1, MS2.
Machine starts briefly
then quits.
Stop pushbutton malfunctioning.
Check PB2, PB3. Replace pushbutton
or replace magnetic switch.
Replacement Parts
Replacement parts are listed on the following pages. To order parts or reach our service department, call
1-800-274-6848, Monday through Friday (see our website for business hours, www.powermatic.com).
Having the Model Number and Serial Number of your machine available when you call will allow us to
serve you quickly and accurately.