Hobart Welding Products OM-474 Inspecting And Cleaning Optional Spark Arrestor Muffler, Welding

7-8. Inspecting And Cleaning Optional Spark Arrestor Muffler

3

2 1

Tools Needed:

3/8 in

YStop engine and let cool.

1Spark Arrestor Muffler

2Cleanout Plug

Remove plug and remove any dirt covering cleanout hole.

3 Exhaust Pipe

Start engine and run at idle speed to blow out cleanout hole. If nothing blows out of hole, briefly cover end of exhaust pipe with fireproof material.

YStop engine and let cool.

Reinstall cleanout plug.

Ref. ST-191 898 / ST-162 256

7-9. Troubleshooting

A. Welding

Trouble	Remedy
No weld output.	Check control settings.
	Place optional Output (Electrode) Control switch in On (Hot) position, or move switch to Remote posi-
	tion and connect remote contactor to Remote 14 receptacle RC3 or terminal strip 3T (see Sections
	4-7, 4-8, and 5-1).
	Check and secure connections to optional Remote 14 receptacle RC3 or terminal strip 3T (see
	Sections 4-7 and 4-8).
	Disconnect equipment from 120 volt ac receptacles during start-up.
	Have Factory Authorized Service Agent check brushes and slip rings, and field current regulator board
	PC1.
Erratic weld output.	Check and tighten connections inside and outside unit.
	Use dry, properly-stored electrodes.
	Remove excessive coils from weld cables.
	Be sure connection to work piece is clean and tight.
	Have Factory Authorized Service Agent check brushes and slip rings.
Low or high weld output.	Check control settings.
	Place optional Process switch in correct position (see Section 5-1).
	Check engine weld/power speed, and adjust if necessary (see Section 7-5).

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