Overload Protection - Miller Electric Big Blue 300 Owner's Manual

8-9. Overload Protection

5
3
7
4
6
1
!
Stop engine.
.
When a circuit breaker, supple-
mentary protector, 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 Supplementary Protector CB2
4 Supplementary Protector CB3
5 Supplementary Protector CB7
6 Supplementary Protector CB8
7 Circuit Breaker CB9
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 supplementary
protector.
CB9 protects the throttle solenoid
against overload. If CB9 opens, the
engine does not automatically idle
down. Check the linkage and sole-
noid. CB9 automatically resets.
803 562 / 803 566
OM-4433 Page 41