Electrical System - Terex PT30 Operation And Maintenance Manual

7 MAINTENANCE

7.21 Electrical System

AUX LDR 1
40 A . RELAY
# 87417B
PWR RELAY A
40
PWR RELAY B
40
GLOW PLUG
50
STARTER
20
LIGHTS
30
PWR OUTLET
GLOW PLUG
20
MAIN
40 A . RELAY
60
# 87417B
MAIN
50
The electrical systems in PT machines are equipped with fuses that help to pro-
tect the electrical components from damage. They are found in the fuse panel
enclosure which is located on the left side of the engine compartment.
In the event of an electrical malfunction, check the fuse panel. Remove the fuse
related to the component that is not working properly and inspect it. If it appears
damaged in any way, replace it.
ELECTRICAL PANEL
AUX LDR 2 AUX LDR 3
40 A . RELAY 40 A . RELAY
# 87417B # 87417B
IGNITION BEACON
10
10
ALT ALT. DIODE
SAFETY RLY
10 5
INJ. PUMP
HRN-LT-SW MICRO SW
5 10 5
FLOAT MAG
A/C AUX HYD
10
5
30
BKUP ALM HEATER MICRO
15 5
5
DOME WIPER
AUXILIARY
10 10
20
78
2010511
AUX LDR 4
40 A . RELAY
# 87417B
L . AUX HYD R . AUX HYD
SAFETY STARTER
LIGHTS MAIN PWR B
35 A . RELAY 35 A . RELAY
# 12177234 # 12177234
MAIN PWR A
40 A . RELAY
# 87417B