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OM-355 Page 18
4-2. Adjusting Spark Gaps
ST-802 745
Y Turn Off power before ad-
justing spark gaps.
Remove left side panel.
1 Tungsten End Of Point
Replace point if tungsten end dis-
appears; do not clean or dress
tungsten.
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.
1
4
3
4
3
2
Tools Needed:
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.