Grizzly G1021 instruction manual Troubleshooting, Symptom Possible Cause Corrective Action

TROUBLESHOOTING

This section covers the most common processing problems encountered in planing and what to do about them. Do not make any adjustments until planer is unplugged and moving parts have come to a complete stop.

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 connec-
				connections.		tions.
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 or
				connections.		worn insulation.
			3.	Incorrect fuses or circuit break-	3.	Install correct fuses or circuit breakers.
				ers 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
blown fuses or tripped cir-				connections.		worn insulation.
cuit).			2.	Low voltage.	2	Correct the low voltage conditions.
			3.	Incorrect fuses or circuit break-	3.	Install correct fuses or circuit breakers.
				ers 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	1.	Inspect keys and setscrews. Replace or tighten if necessary.
ing from machine				missing or loose.	2.	Tighten fan or shim cover.
			2.	Motor fan is hitting the cover.	3.	Replace V-belt. See Maintenance.
			3.	V-belt is defective
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				Depth of cut too shallow.		Increase depth of cut.
on the workpiece.
Outfeed roller marks are left				Too much spring tension on feed		Refer to Feed Roller Pressure section for adjustment.
on right side of workpiece.				roller.
Cannot control snipe.				Long or heavy board sags as it		Lift up on unsupported end of board as it enters and exits cutter-
				enters and exits.		head.
Chip	buildup on	outfeed		Chips working their way back		Lay duct tape over the mounting bolts along the outside edge to
roller.				under the chip deflector.		seal any possible gaps.
Machine howls on startup.				Chip deflector too close to the		Move back 1/8" to 1/4" from the cutterhead.
				cutterhead.
Table moves down while				Knives dull		Replace knives.
cutting.

G1021 15" Planer -37-