Chicago Electric 93431 Troubleshooting, Problem Possible Causes Likely Solutions

Troubleshooting

Problem		Possible Causes		Likely Solutions
Tool will not start.	1.	Cord not connected.	1.	Check that cord is plugged in.
	2.	No power at outlet.	2.	Check power at outlet. If outlet is
				unpowered, turn off tool and check circuit
				breaker. If breaker is tripped, make sure
				circuit is right capacity for tool and circuit
				has no other loads.
	3.	Internal damage or wear. (Carbon	3.	Have technician service tool.
		brushes or switch, for example.)
Tool operates slowly.	1.	Excess pressure applied to workpiece.	1. Decrease pressure, allow tool to do the
				work.
	2.	Power being reduced by long or small	2.	Eliminate use of extension cord. If an
		diameter extension cord.		extension cord is needed, use one with
				the proper diameter for its length and load.
				See Extension Cords in GROUNDING
				section.
Performance	Carbon brushes worn or damaged.		Have qualified technician replace brushes.
decreases over time.
Excessive noise or	Internal damage or wear. (Carbon		Have technician service tool.
rattling.	brushes or bearings, for example.)
Overheating.	1.	Forcing tool to work too fast.	1.	Allow tool to work at its own rate.
	2.	Blocked motor housing vents.	2.	Wear ANSI-approved safety goggles and
				NIOSH-approved dust mask/respirator
				while blowing dust out of motor using
				compressed air.
	3.	Motor being strained by long or small	3.	Eliminate use of extension cord. If an
		diameter extension cord.		extension cord is needed, use one with
				the proper diameter for its length and load.
				See Extension Cords in GROUNDING
				section.
Tool does not sand	Disc accessory may be damaged, worn or		Check condition and type of disc accessory.
effectively.	wrong type for the material.		Use only proper type of disc accessory in
			good condition.

Follow all safety precautions whenever diagnosing or servicing the tool. Disconnect power supply before service.

SKU 93431 For technical questions, please call 1-800-444-3353. Page 13