36 - 2
Electrical Connections
On the electrical diagram opposite the electrical connectors
(example, CTG to HB) are shown looking on the mating face
of each connector when they are disconnected.
The wire numbers and colours, where appropriate, are
shown as an aid to identification whilst fault finding.
Before fault finding make sure that you understand how the
the electrical circuits work. Most potential faults can be
traced using a multimeter to carry out continuity checks on
wires, switches and soleniod coils. See Service
Procedures, Electrical Testing Methods for more details.
Component Key:
1 Servo harness
HA Auxiliary hydraulics harness loop connector
HB Auxiliary hydraulics connector
HC Rear cab harness loop connector
HD Rear cab harness connector
HE Pilot control valve solenoid connector
HF Right hand joystick connector
HG Seat microswitch connector
HH Left hand joystick connector
2 Right hand joystick
2a Microswitch - Mode
2b Microswitch - Excavator quickhitch latch control (if
fitted)
2c Microswitch - Hydraulic changeover solenoid valve
(if fitted)
3 Left hand joystick
3a Microswitch - Rear Horn
3b Microswitch - Excavator quick hitch latch control (if
fitted)
4 Seat mounted microswitch
5 Pilot control valve solenoid
6 Auxiliary hydraulics wiring harness, see Basic System
Operation, Circuit Schematics
7 Hydraulic change over circuit, see Basic System
Operation, Circuit Schematics, Auxiliary and
Hydraclamp Hydraulics
8 Rear horn circuit, see Basic System Operation, Circuit
Schematics
9 Dedicated quick hitch circuit, see Basic System
Operation, Dedicated Quick Hitch
10 Rear cab harness
A1 Fuse - Hydraulic Auxiliary
CP Relay base - Auxiliary (jaw bucket)
CMRelay base - Rear horn
Splices:
SA
SB
SC
SD
SH
TA
Section D Controls
9803/3280
Section D
36 - 2
Issue 1
Precision Control (Servo)
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