John Deere Prohytronic Electronic Hitch Control Component Technical Manual (CTM4460)

Table of Content (Component Technical Manual – CTM4460)
Section 05—Hitch Control
Specifications 05-1
Torques for hardware 05-1
Replacing hitch control valve 05-2
Replacing draft sensor 05-2
Replacing draft sensor support 05-2
Installing cam 05-3
Replacing and adjusting position sensor 05-3
Checking setting of position sensor 05-4
Replacing electronic control unit 05-5
Replacing operation box and control box 05-5
Hitch control – exploded view 05-6
Section 10—Rockshaft
Special tools 10-1
Torques for hardware 10-1
Removing rockshaft cylinder 10-2
Removing rockshaft piston 10-2
Installing set of seals 10-2
Installing rockshaft piston 10-2
Removing surge relief valve 10-3
Installing surge relief valve 10-3
Replacing bearing bushings 10-3
Installing rockshaft 10-3
Installing rockshaft cylinder 10-4
Installing lift arms 10-4
Securing sway blocks 10-5
Replacing additional rockshaft cylinder 10-5
Replacing bearings of additional rockshaft cylinder 10-5
Disassembling additional rockshaft cylinder 10-6
Replacing seal ring and wiper seal 10-6
Assembling additional rockshaft cylinder 10-6
Three-point hitch – exploded view 10-7
Section 15—Wiring Harnesses
Special tools 15-1
Disconnecting electrical circuit 15-1
Hitch control wiring harnesses 15-2
Disconnecting point – hitch control wiring harness 15-3
Replacing snap connector on 25-pin connector 15-3
Replacing snap connector on 2-pin or 3-pin connector 15-3
Stripping cable ends 15-4
Crimping snap connectors 15-4
Removing snap connector on 18-pin connector 15-4
Crimping snap connector on 18-pin connector 15-4
Installing snap connector on 18-pin connector 15-5
Replacing individual snap connectors 15-5
Fuses of hitch control system 15-5
Section 205—Description and Operation
Description and operation 205-1
Control box 205-4
Operation box 205-4
Position sensor 205-5
Draft sensor 205-5
Electronic control unit 205-6
Control valve 205-7
Control valve in neutral position 205-8
Control valve in “Raise” position 205-9
Control valve in “Lower” position 205-10
Section 210—Troubleshooting and Tests
Special tools 210-1
General tests 210-1
Functional test of control valve 210-2
Testing of hydraulic system 210-3
Testing of electric/electronic system 210-3
Functional test of PROHYTRONIC 210-4
Troubleshooting using PROHYTRONIC Test Kit FKM10426 210-8
Control and display elements of Test Box FKM10426-1 210-9
Explanation of the test steps 210-10
Instructions for test procedure 210-12
Test conditions 210-12
Test procedure 210-13
Explanation of the error codes “E…” 210-22
Section 215—Electrical Circuit and Wiring Diagrams
Parts designations in electrical circuit and wiring diagrams 215-1
Section designations in electrical circuit diagram 215-1
Wiring harness designations in wiring diagrams 215-1
Wiring harnesses of electronic hitch control 215-5
Wiring diagram 215-7
Pin assignment – electronic control unit 215-9
Pin assignment – operation box 215-10
Pin assignment – control box 215-11