Gun Routine Maintenance; Welding Power Source Overload Protection; Drive Motor Protection And Tip Saver/Short Circuit Protection - Miller Electric Renegade 180 Owner's Manual

8-2. Gun Routine Maintenance

n = Check
Every
Spool
Of Wire
~ Gun Casing
Every 3
Months
l Cracked Parts

8-3. Welding Power Source Overload Protection

1

8-4. Drive Motor Protection And Tip Saver/Short Circuit Protection

A. 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.
B. Tip Saver/Short Circuit Protection
The tip saver/short circuit protection extends contact tip life and protects internal components from damage. If contact tip is shorted to workpiece, the
unit shuts down the welding output. To resume operation, release gun trigger to reset unit. If the contact tip has stuck to the workpiece, release gun
trigger, turn off unit, and remove contact tip from workpiece. Check contact tip and replace if damaged. Turn on unit to continue operation.
OM-228 042 Page 32
Z = Change ~ = Clean
~ Nozzle, n Contact Tip
l Cracked Parts
.
Shown with optional cylinder rack
.
Complete Parts List available at www. MillerWelds.com
l = Replace
l Cracked Parts l Cracked Parts
Stop engine and dis-
connect gun before
maintaining.
Reference
Section 8-7
Section 8-7
1 Supplementary Protector CB2
CB2 protects unit from overload. If
the unit is using 230 volts ac input
power and CB2 opens, unit shuts
down.
Reset supplementary protector.
804 476-C