Komatsu WB140-2N Operation & Maintenance Manual page 86

OPERATION
Fuse
Color
Position
F1 White
F2 Green
F3 Blue
F4 White
Relay
Position
1 Engine stop enable timer
2 Preheat timer
3 Glow plug preheat relay
4 Engine stop solenoid relay
5 Engine start enable relay
2-30
Capacity
(Amps)
80 Glow plug preheat
30 Engine stop
60 Engine start
80 Alternator
Circuit Involved With Inoperable Relay
Circuit Involved With Blown Fuse
WB140-2N, WB150-2N