Miller Electric Blu-Fab 3500 Maintenance and Troubleshooting, Routine Maintenance, Months

SECTION 6 − MAINTENANCE AND TROUBLESHOOTING

6-1. Routine Maintenance

Y Disconnect power before maintaining.

. Maintain more often during severe conditions.

3 Months

Replace unreadable labels.

Clean and tighten weld terminals.

Repair or replace cracked weld cable.

Repair or replace cracked gas hose.

Replace o-ring in Electrode/Gas

Output receptacle if cracked.

6 Months

Blow out or vacuum inside.

OR

6-2. Troubleshooting

Trouble	Remedy
No weld output; fan does not run.	Place line disconnect switch in On position (see Section 4-4).
	Check and replace line fuse(s), if necessary, or reset circuit breaker (see Section 4-4).
	Check for proper input power connections (see Section 4-4).
No weld output; fan on.	Check and replace if necessary.
	Tighten wire feeder connection to Remote 14 receptacle.
	Unit overheated. Allow unit to cool (see Section 3-3).
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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