Hobart Welding Products 187 - Manual (Page 28)

OM-228 187 Page 24
SECTION 7 − MAINTENANCE & TROUBLESHOOTING
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.
Or
7-2. Overload Protection
802 441
1 Supplementary Protector CB1
CB1 protects unit from overload. If
CB1 opens, unit shuts down.
Reset supplementary protector.
1
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.