Hobart Welding Products OM-498 manual Troubleshooting, Welding, Auxiliary Power, Trouble Remedy

SECTION 8 – TROUBLESHOOTING

8-1. Troubleshooting

A. Welding

Trouble	Remedy
No weld output.	Check Amperage control setting.
	Check weld connections.
	Be sure all equipment is disconnected from receptacles when starting unit.
	Have Factory Authorized Service Agent check brushes, slip rings, rotor, stator, reactor L2, output
	rectifier CR3, stabilizer L3, integrated rectifiers CR1 and CR2, and amperage control R1.
Low weld output.	Check Amperage control and throttle lever settings.
	Check engine speed, and adjust if necessary (see Section 7-4 or 7-5).
	Service air cleaner according to engine manual.
	Check weld cable size and length.
	Have Factory Authorized Service Agent check brushes, slip rings, capacitor C1, reactor L2, and recti-
	fier CR2.
High weld output.	Check Amperage control setting.
	Check engine speed, and adjust if necessary (see Section 7-4 or 7-5).
Erratic weld output.	Check Amperage control setting.
	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 engine speed, and adjust if necessary (see Section 7-4 or 7-5).
	Check throttle/governor linkage for smooth, non-binding operation.

B. Auxiliary Power

Trouble	Remedy
No output at auxiliary power	Reset circuit breakers (see Section 6-1).
receptacles.
	Check receptacle wiring and connections.
	Check engine speed, and adjust if necessary (see Section 7-4 or 7-5). Output stops if engine speed is
	too low.
	Have Factory Authorized Service Agent check stator windings.
High power output.	Check engine speed, and adjust if necessary (see Section 7-4 or 7-5).
Low power output.	Check Amperage control setting.
	Check engine speed, and adjust if necessary (see Section 7-4 or 7-5). Output stops if engine speed is
	too low.
	Move throttle lever to Run (far right) position (see Section 5-1 or 5-2).
Erratic power output.	Check fuel level.
	Check receptacle wiring and connections.
	Check throttle/governor linkage for smooth, non-binding operation.
	Service air cleaner according to engine manual.
	Check engine speed, and adjust if necessary (see Section 7-4 or 7-5). Output stops if engine speed is
	too low.

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