Miller Electric Metro 250D manual Overload Protection, Weld And Auxiliary Power Circuits

7.7Overload Protection

YStop engine. If checking fuse, disconnect battery negative (−) cable.

.Press button to reset circuit

breaker. If fuse or breaker continues to open, contact Factory Authorized Service Agent.

Weld And Auxiliary Power Circuits

1 Fuse F2

F2 protects battery excitation circuit. If F2 opens, weld and auxil- iary output stops.

2 Fuse F3

F3 protects generator excitation circuit. If F3 opens, weld and auxil- iary power output is low.

Replace any open fuses. Reinstall panel before operating unit.

Remote Control Circuit

Ref. ST-159 215-E / Ref. ST-158 936-D / Ref. St-175 918-C

3

4

3 Circuit Breaker CB5

CB5 protects 24 volt ac output to Remote 14 receptacle RC1. If CB5 opens, RC1 24 volt output stops.

Engine Control Circuit

4Circuit Breakers CB6, CB7, CB8, And CB9

CB6 protects fuel solenoid circuit. If CB6 opens, the engine does not start.

CB7 protects throttle solenoid circuit. If CB7 opens, the engine does not run at weld/power speed.

CB8 protects Engine Control switch and wiring harness. If CB8 opens, the engine does not crank.

CB9

CB8

CB7

CB6

2

1

CB9 protects optional glow plug system. If CB9 opens, the glow plug does not work.

S-179 489

Tools Needed:

3/8 in

OM-402 29