Grizzly G0550/G0551 instruction manual Troubleshooting Guide

Troubleshooting Guide

SYMPTOM			POSSIBLE CAUSE		CORRECTIVE ACTION
Motor will not start.			1.	Low voltage.	1.	Check power line for proper voltage.
			2.	Open circuit in motor or loose	2.	Inspect all lead connections on motor for loose or open connections.
				connections.
Motor will not start; fuses or			1.	Short circuit in line cord or plug.	1.	Inspect cord or plug for damaged insulation and shorted wires.
circuit breakers blow.			2.	Short circuit in motor or loose	2.	Inspect all connections on motor for loose or shorted terminals
				connections.		or worn insulation.
			3.	Incorrect fuses or circuit breakers	3.	Install correct fuses or circuit breakers.
				in power line.
Motor overheats.			1.	Motor overloaded.	1.	Reduce load on motor.
			2.	Air circulation through the motor	2.	Clean out motor to provide normal air circulation.
				restricted.
Motor	stalls (resulting in		1.	Short circuit in motor or loose	1.	Inspect connections on motor for loose or shorted terminals or worn
blown fuses or tripped cir-				connections.		insulation.
cuit).			2.	Low voltage.	2	Correct the low voltage conditions.
			3.	Incorrect fuses or circuit breakers	3.	Install correct fuses or circuit breakers.
				in power line.
			4.	Motor overloaded.	4.	Reduce load on motor.
Machine slows when oper-			1.	Feed rate too high.	1.	Feed workpiece slower.
ating.			2.	Depth of cut too great.	2.	Reduce depth of cut.
Loud, repetitious noise com-			1.	Pulley setscrews or keys are mis-	1.	Inspect keys and setscrews. Replace or tighten if necessary.
ing from machine				sing or loose.	2.	Tighten fan or shim cover.
			2.	Motor fan is hitting the cover.
			3.	V-belt is defective	3.	Replace V-belt. See Maintenance.
Machine is loud when cut-			1.	Excessive depth of cut.	1.	Decrease depth of cut.
ting.	Overheats	or bogs	2.	Knives are dull	2.	Sharpen knives.
down in the cut.
Infeed roller marks are left			1.	Depth of cut too shallow.	1.	Increase depth of cut.
on the workpiece.
Outfeed roller marks are left			1.	Too much spring tension on feed	1.	Refer to Feed Roller Pressure section for adjustment.
on right side of workpiece.				roller.
Cannot control snipe.			1.	Long or heavy board sags as it	1.	Lift up on unsupported end of board as it enters and exits
				enters and exits.		cutterhead.
Chip	buildup on	outfeed	1.	Chips working their way back under	1.	Lay duct tape over the mounting bolts along the outside edge to seal
roller.				the chip deflector.		any possible gaps.
Machine howls on startup.			1.	Chip deflector too close to the	1.	Move chip deflector back 1/8" to 1/4" from the cutterhead.
				cutterhead.
Table moves down while			1.	Knives dull.	1.	Replace knives.
cutting.			2.	Cutterhead is not locked.	2.	Tighten cutterhead lock knobs.

G0550/G0551 15" Planer -47-