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PR-10 Product Support |
NOTE: It is suggested that only qualified technicians use these repair guidelines, ignoring to do so could result in a void of your warranty. This information is to be used as a guideline only, and cannot be gauranteed to solve your specific repair issue. |
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 Trouble-Shooting Symptoms for PR-10 Resistance Spot Welder: |
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1. No Weld or Poor Weld |
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- Welder power not turned ON. (Turn Welder ON) - Dirty gun tip or bad setup. (Replace tip. Clean tip or work piece.) - Gun stroking or squeeze problem. (Check air solenoid, pistons, & shaft) - Failed trig switch inside gun handle. (Twin-lead Comm. Cable) - Broken trig switch wire betw gun & circuit board (DB-9 comm. cable). - Tripped or bad/broken circuit breaker on welder. (Check also cooling pump.) - Tripped or bad circuit breaker at house panel. (Clean & Tighten Clamping) - Loose power cable inside wall plug. (Clean & Tighten Clamping) - Loose harness inside cabinet. (Clean & Tighten Clamping) - Bad circuit board or thyristor module. (Confirm 208v at thyristor, Send in for repair.) |
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2. No Cooling / Pump Problem |
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- Check fuse(s). - Check for AC power in harness. - Confirm tight connections at circuit breaker. - Confirm flow in plumbing. OK coolant level in tank-bottle? - Check for leaks. (Pump is not repairable – mech or electr.) - Check for kinks in tubing. |
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