Hobart Welding Products 4500 manual Troubleshooting, Welding, Generator Power, Trouble Remedy

SECTION 9 − TROUBLESHOOTING

9-1. Troubleshooting

A. Welding

Trouble	Remedy
No weld output; no generator power	Be sure all equipment is disconnected from receptacles when starting unit.
output at ac receptacles.
	Have Factory Authorized Service Agent check brushes, slip rings, rotor, stator, and integrated rectifier
	SR1.
No weld output; generator power out-	Check Amperage control setting (see Section 6-1).
put okay at ac receptacles.
	Check weld connections.
	Have Factory Authorized Service Agent check Amperage control R1, stator, and integrated rectifier
	SR1.
Low weld output.	Check Amperage control setting (see Section 6-1).
	Service engine air cleaner.
	Check weld cable size and length.
	Have Factory Authorized Service Agent check engine speed, and adjust if necessary.
	Have Factory Authorized Service Agent check brushes, slip rings, rotor, stator, and integrated rectifier
	SR1.
High weld output.	Check Amperage control setting (see Section 6-1).
Erratic weld output.	Check Amperage control setting (see Section 6-1).
	Tighten and clean connections to electrode and workpiece.
	Use dry, properly-stored electrodes for Stick welding.
	Remove excessive coils from weld cables.
	Clean and tighten connections both inside and outside welding generator.
	Check governor linkage for smooth, non-binding operation.
	Have Factory Authorized Service Agent check engine speed, and adjust if necessary.

B. Generator Power

Trouble	Remedy
No output at generator power ac re-	Be sure all equipment is disconnected from receptacles when starting unit.
ceptacles; no weld output.
	Have Factory Authorized Service Agent check brushes, slip rings, rotor, stator, and integrated rectifier
	SR1.
No output at generator power ac re-	Reset supplementary protector (see Section 7-1).
ceptacles; weld output okay.
	Check Amperage control setting (see Section 6-1). Set Amperage control at Max for generator power.
	Check receptacle wiring and connections.
	Have Factory Authorized Service Agent check engine speed, and adjust if necessary.
	Have Factory Authorized Service Agent check stator windings.
High output at generator power ac	Have Factory Authorized Service Agent check engine speed, and adjust if necessary.
receptacles.
Low output at generator power ac	Check Amperage control setting (see Section 6-1). Set Amperage control at Max for generator power.
receptacles.
	Have Factory Authorized Service Agent check engine speed, and adjust if necessary.

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