4-10
Circuit Schematics - Options
All Wheel Steer/Brake Mode
1 LH Brake Light
2 RH Brake Light
3 Brake Light Switch
4 4 Wheel Braking Relay
5 4 Wheel Drive Solenoid
6 Auto 2 Wheel Drive Relay
7 4 Wheel Drive Selector Switch
Connections:
J From J on page C/4-4
S From 14 on page C/4-5 and 9 on C/4-13 as applicable
Auxiliary and Hydraclamp Hydraulics
1 Jaw Relay
2 Push-Button Switch on Excavator Lever
3 Jaw Solenoid
4 Auxiliary Hydraulics Selector Switch
5 Hammer Solenoid
6 Hammer Relay
7 Footpedal Switch
8 Hydra-clamp Selector Switch
9 Hydra-clamp Solenoid
10 Power Sideshift Solenoid (if fitted)
11 Warning Buzzer
Connections:
R From R on page C/4-4
Speedometer Option
1 Speed Sensor
2 Speedometer
3 Illumination
Section C Electrics
9803/3280
Section C
4-10
Issue 2*
Basic System Operation
*
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