Hobart 180 SD Adjusting Spark Gaps, Troubleshooting, Turn Off power before ad, Justing spark gaps

4-2. Adjusting Spark Gaps

4	4		Y Turn Off power before ad-
			Tools Needed:	justing spark gaps.
			Remove left side panel.
3			1 Tungsten End Of Point
			Replace point if tungsten end dis-
		3	appears; do not clean or dress
			tungsten.
2		1	2	Spark Gap
			Normal spark gap is 0.012 in (0.305
			mm).
			If adjustment is needed, proceed as
			follows:
			3	Adjustment Screws
			Loosen screws. Place gauge of
			proper thickness in spark gap.
			4	Pressure Point
			Apply slight pressure at point until
			gauge is held firmly in gap. Tighten
			screws to 12 in/lbs torque (overtigh-
			tening will deform plastic base). Ad-
			just other gap.

Reinstall left side panel.

ST-802 745

4-3. Troubleshooting

Trouble	Remedy
No weld output; fan does not run.	Place line disconnect switch in On position (see Section 2-11).
	Check and replace line fuse(s), if necessary, or reset circuit breaker (see Section 2-11).
	Check for proper input power connections (see Section 2-11).
No weld output; fan on.	Be sure Polarity switch is not set between positions.
	Tighten remote control connection to Remote 14 receptacle.
	Check remote control (see remote control Owner’s Manual).
	Unit overheated. Allow unit to cool (see Section 2-5).
Fan not operating; weld output	Check for and remove anything blocking fan movement.
available.
	Have Factory Authorized Service Agent check fan motor.

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