Powermatic 15HH operating instructions Troubleshooting Mechanical and Electrical Problems

Troubleshooting: Mechanical and Electrical Problems

Trouble

Uneven depth of cut side to side.

Board thickness does not match depth of cut scale.

Chain is jumping.

Machine will not start/restart or repeatedly trips circuit breaker or blows fuses.

Probable Cause	Remedy
Knife projection from cutterhead is	Adjust knife projection.
incorrect (15S only).
Table not parallel to cutterhead.	Adjust table/cutterhead parallelism.
Depth of cut scale is incorrect.	Adjust depth of cut scale.
Inadequate tension.	Adjust chain tension.
Sprockets misaligned.	Align sprockets.
Sprockets are worn.	Replace sprockets.
No incoming power.	Verify power connections to planer.
	When planer overloads on the circuit
	breaker built into the motor starter, it
Overload automatic reset has not	takes time for the machine to cool
	down before restart. Allow unit to
reset.	adequately cool before attempting
	restart. If problem persists, check
	amp setting on the motor starter
	inside the electrical box.
	One cause of overloading trips which
	is not electrical in nature is too heavy
	a cut. The solution is to take a lighter
	cut.
	If too deep a cut is not the problem,
Planer frequently trips.	then check the amp setting on the
	overload relay. Match the full load
	amps on the motor as noted on the
	motor plate.
	If amp setting is correct then there is
	probably a loose electrical lead.
	Check amp setting on motor starter.
	Verify that planer is on a circuit of
Building circuit breaker trips or fuse	correct size. If circuit size is correct,
	there is probably a loose electrical
blows.
	lead. Check amp settting on motor
	starter.
	Go through all the electrical
	connections on the planer including
	motor connections, verifying the
Loose electrical connections.	tightness of each. Look for any signs
	of electrical arcing which is a sure
	indicator of loose connections or
	circuit overload.

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