03 - Attachments, Couplings and Load Handling
10 - Excavator Arm Quickhitch
06 - Hydraulic Quickhitch
03 - 10 9813/7500-2 03 - 10
Diagram
Figure 15. Electrical Schematic- Quickhitch Locked - Unlock Initiate
A
B
ECU: HYDRAULIC
CONTROL ECU (J2)
C154
Q/H SWITCH PRESSED
SWITCH: QUICK HITCH
C121
CAB BASE EARTH
POINT (INT) (EP07)
ECU: HYDRAULIC
CONTROL ECU (J2)
SENSOR: ALIGNMENT - ARM
SENSOR: ALIGNMENT - BOOM
C157
SENSOR: PRESSURE - QUICK HITCH
BUCKET CROWD SELECTED
REVOLVER EARTH
STUD (EP03)
REVOLVER EARTH
STUD (EP03)
A Quickhitch switch pressed B Bucket crowd position set
C121 Switch - quickhitch C154 HECU (Hydraulics Electronic Control
Unit)- connector J2
C156 Sensor - quickhitch pressure C157 Sensor - boom alignment
C158 Sensor - dipper alignment EP03 Earth point - revolving chassis
EP07 Earth point - cab base
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