Powermatic 201 instruction manual TROUBLE-SHOOTING Mechanical & Electrical Problems, Planer

TROUBLE-SHOOTING: MECHANICAL & ELECTRICAL PROBLEMS

(201 Planer)

PROBLEM	POSSIBLE CAUSE		SOLUTION
Uneven depth	1.	Knife projection	1.	Adjust knife projection.
of cut side to side	2.	Cutterhead not level with bed.	2.	Level bed.
Board thickness	1. Depth of cut scale incorrect.		1.	Adjust depth of cut scale.
does not match depth
of cut scale
Chain jumping	1.	Inadequate tension.	1.	Adjust chain tension.
	2.	Sprockets misaligned.	2.	Align sprockets.
	3.	Sprockets worn.	3.	Replace sprockets.
Machine will not start/	1.	Unit not plugged in.	1.	Verify unit is connected to power.
restart or repeatedly	2.	Overload automatic	2.	When planer overloads on the circuit
trips circuit breaker or		reset has not reset.		breaker built into the motor starter, it takes time for
blows fuses				the machine to cool down before restart. Allow unit
				to adequately cool before attempting restart. If
				problem persists, check amp setting on the motor
				starter inside the electrical box.
	3.	Planer frequently trips.	3.	One cause of overload trips which are not
				electrical in nature is too heavy of a cut. The
				solution is to take a lighter cut. If too deep of a cut is
				not the problem, 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 or a failed component. See
				items 9 & 10 below.
	4.	Building circuit breaker	4.	Verify that planer is on a circuit of correct
		trips or fuse blows.		size. If circuit size is correct, there is probably a
				loose electrical lead. Check amp setting on motor
				starter.
	5.	Loose electrical	5.	Go through all of the electrical connections on the
		connections.		planer including motor connections, verifying the
				tightness of each. Look for any signs of electrical
				arcing which is a sure indicator of loose connections
				or circuit overload.
	6.	Motor starter failure.	6.	Examine motor starter for burned or failed
				components. If damage is found, replace motor
				starter. If motor starter looks OK but is still
				suspect, you have two options: have a qualified
				electrician test the motor starter for function, or
				purchase a new starter and establish if that was
				the problem on changeout.

If you have access to a voltmeter, you can separate a starter failure from a motor failure by first, verifying incoming voltage at 220+/-20 and second, checking the voltage between starter motor at 220+/-20.

If incoming voltage is incorrect, you have a power supply problem.

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