A.8X.12

Massey Ferguson A.8X.12: External Hydraulic Valve 8 Issue

Issue description

Indicates a potential fault or malfunction within the external hydraulic control system, specifically relating to the 8th external hydraulic spool/valve circuit.

Applies to these 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

Connect a compatible diagnostic tool or interface device to the tractor to retrieve and verify the active DTCs.
Verify the specific nature and location of the fault within the hydraulic system as indicated by the diagnostic tool.
Consult the specific tractor's OEM service manual to interpret the code correctly and isolate whether the issue is electrical (e.g., a short/open circuit at the valve solenoid) or mechanical (e.g., a stuck spool).

Parts you might need

(6)

Electric Spool Slice
3797234M6
For 6400, 6600, 7400 series. Alternate numbers: 3797234M5, 3797234M4, 3797234M3, 3796930M12. Requires programming to the tractor upon installation.
3797234M6

Pilot Pressure Control for Electric Spool Valve
R917008801
R917008801

Mechanical Spool Valves
3597161M93
For 300 series
3597161M93

Mechanical Spool Valves
3904737M1
For 300 series
3904737M1

Mechanical Spool Valves
3904736M1
For 300 series
3904736M1

Hydraulic Spool Valve (General)
3795751M3
3795751M3

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