Massey Ferguson A.80.11: External Hydraulic Valve 8 Issue
Issue description
Connection problem on a hydraulic valve, meaning the system has detected an electrical or communication failure with the 8th external hydraulic remote valve.
Applies to these machines
40 machines- 5710SL
- 5711SL
- 5712SL
- 5713SL
- T4
- 4707
- 4708
- 4709
- 4710
- 5608
- 5609
- 5610
- 5611
- 5612
- 5613
- 7614
- 7615
- 7616
- 7618
- 7619
- 7620
- 7622
- 7624
- 7626
- 7714
- 7715
- 7715S
- 7716
- 7716S
- 7718
- 7718S
- 7719
- 7720
- 7720S
- 7722
- 7722S
- 7724
- 7724S
- 7726
- 7726S
Check the cause
Use a compatible diagnostic tool or interface device to retrieve and verify the active DTCs
Inspect the electrical wiring harness, connectors, and pins leading to External Hydraulic Valve 8 for corrosion, loose fittings, or damaged wires
Ensure the hydraulic fluid is at the correct level and that the correct type of universal tractor hydraulic fluid is being used
Repair steps
Turn off the tractor and disconnect the battery
Ensure safety while working on the electrical system.
Locate External Hydraulic Valve 8
Locate the valve on the rear hydraulic remote stack.
Disconnect the electrical connector at the valve
Clean the contacts with electrical contact cleaner and check for pushed-out pins.
Repair or replace damaged wiring
Repair or replace any damaged sections of the wiring harness leading to the valve.
Replace the electric spool slice (valve)
If the wiring and connections are sound, the electric spool slice (valve) itself has likely failed internally and must be replaced.
Clear DTCs and test
After replacing the valve or repairing the connection, use a diagnostic tool to clear the DTCs and test the hydraulic remote for proper operation. Note that some replacement electric spool valves require programming to the tractor.
Parts you might need
(3)Electric Spool Slice
3797234M6Compatible with various 6400, 6600, and 7400 series tractors. Note: This part needs to be programmed to the tractor upon installation.
Pilot Pressure Control for Electric Spool Valve
R917008801Hydraulic Spool Valve
3795751M3
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