Troubleshooting Guide
Power Feed Problems
6
6-5 60HDdoc102619 Troubleshooting Guide
6.3 Power Feed Problems
NOTE: The power feed circuit board is equipped with LED lights to help determine if the circuit board
or feed rate switch are the cause of any feed problems you may encounter. See Section 6.4
for
instructions.
PROBLEM CAUSE SOLUTION
Power Feed Is Jerky At Low
Speeds Or Does Not Move
Until Speed Is Above Halfway
Mark.
Drum switch is dirty. Clean drum switch and lubricate with
contact grease supplied by Wood-Mizer.
Drum switch contacts are bad Check that contacts are in good condition
and positively close circuit.
Components are loose or wires are
broken.
Replace or repair PC board.
Power Feed Is Jerky When
Shaft Of Feed Rate Dial Is
Moved Back And Forth.
Variable speed switch is bad -
perform the variable speed switch
test.
Replace variable speed switch.
Power Feed Is Jerky, But
Power Feed Motor Runs
Properly At All Speeds.
Problem is mechanical. Refer to the Mechanical Test.
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