Overload Protection - Miller Big Blue Duo Pro 700 X Owner's Manual

8-8.

Overload Protection

3-1. Overload Protection
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OM-282302 Page 60
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1
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803 605
Stop engine.
�
When a supplementary protector, cir-
cuit breaker or fuse opens, it usually in-
dicates a more serious problem exists.
Contact Factory Authorized Service
Agent.
1 Fuse F1
2 Fuse F2
F1 and F2 protect the stator exciter winding
from overload. If F1 opens, weld and genera-
tor power is low or stops entirely. If F2 opens,
weld output is low or stops entirely. 4 kVA/
kW generator power is still available.
3 Supplementary Protector CB9
4 Supplementary Protector CB29
5 Circuit Breaker CB10 (Not Shown)
6 Supplementary Protector CB2
7 Supplementary Protector CB4
8 Circuit Breaker CB14 (Not Shown)
CB9 and CB29 protect the 24 volt AC output
to remote receptacles. If CB9 or CB29
opens, weld output and 24 volt output to re-
mote receptacle stops.
CB10 protects the engine battery circuit. If
CB10 opens, the engine will not crank. CB10
automatically resets when the fault is
corrected.
CB2 protects the engine control circuit. If
CB2 opens, the engine does not crank.
CB4 protects the field flashing circuit. If CB4
opens, the generator may not excite at start-
up and weld and generator power output
may not be available.
CB14 protects throttle solenoid TS1. If CB14
opens, the engine does not run at idle speed.
CB14 automatically resets when the fault is
corrected.
Press button to reset.