Miller PRO 300 - Overload Protection

OM-4422 Page 42
8-10. Overload Protection
803 562 / 803 566
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 Stop engine.
 When a circuit breaker or fuse
opens, it usually indicates a
more serious problem exists.
Contact Factory Authorized
Service Agent.
1 Fuse F1
F1 protects the stator exciter wind-
ing from overload. If F1 opens, weld
and generator power is low or stops
entirely.
2 Circuit Breaker CB1 (Not
Shown)
3 Circuit Breaker CB2
4 Circuit Breaker CB3
5 Circuit Breaker CB7
6 Circuit Breaker CB8
CB1 protects the engine battery cir-
cuit. If CB1 opens, the engine will not
crank. CB1 automatically resets
when the fault is corrected.
CB2 protects the engine wiring har-
ness. If CB2 opens, the engine will
not crank.
CB3 protects part of the weld control
wiring harness. If CB3 opens, weld
and generator power output stops.
CB7 protects the 115 volt ac output
to remote receptacle RC14. If CB7
opens, 115 volt output to RC14
stops.
CB8 protects the 24 volt ac output to
remote receptacle RC14. If CB8
opens, 24 volt output to RC14 stops.
Press button to reset breaker.
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