Section 7 − maintenance &troubleshooting, Routine maintenance, Overload protection – Hobart Welding Products TM-944C User Manual

Page 32: Drive motor protection, Cooled (see section 7-3, 1. routine maintenance, 2. overload protection, 3. drive motor protection

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SECTION 7 − MAINTENANCE

7-1.

Routine Maintenance

Disconnect power before maintaining.

3 Months

Replace
unreadable
labels.

Repair or
replace
cracked
weld cable.

Clean and
tighten weld
terminals.

6 Months

Blow out or
vacuum inside.
During heavy
service, clean
monthly.

7-2.

Overload Protection

802 441

Circuit Breaker CB1

CB1 protects unit from overload. If
CB1 opens, unit shuts down.

Reset breaker.

7-3.

Drive Motor Protection

Drive motor protection circuit protects drive motor from overload. If drive motor becomes inoperative, release gun
trigger and wait until protection circuit resets allowing drive motor to feed wire again.