Massey Ferguson A.31.19: External Hydraulic Valve 3 Issue
Issue description
Indicates a fault or potential issue specifically within the third external hydraulic remote valve (spool valve 3). May be triggered by an electrical fault, a sticking valve, or a communication error with the valve's solenoid.
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
Retrieve and verify codes using a diagnostic tool to confirm A.31.19 and check for related electrical codes (such as 0A.41.FF)
Inspect the wiring harness and electrical connectors going to External Hydraulic Valve 3 for corrosion, damage, or loose connections
Check the physical spool valve for external hydraulic fluid leaks or signs that the valve is sticking in one direction
Repair steps
Locate External Hydraulic Valve 3
On many Massey Ferguson models, the remote valve block is mounted directly on the lift cover under the seat.
Address electrical issues
If the issue is electrical (wiring/solenoid), repair the connection or replace the faulty solenoid.
Remove the valve
If the valve is leaking or sticking mechanically, remove the valve from the hydraulic block.
Rebuild or replace the spool valve
Rebuild the spool valve using an OEM repair kit (replacing the internal seals) or replace the entire 3rd spool valve assembly if the internal bore is damaged.
Reinstall and clear codes
Reinstall the valve, reconnect the ½” ISO 5675 quick couplers, and clear the DTCs using a diagnostic tool.
Parts you might need
(7)Massey Ferguson Spool Valve Repair Kit
3176423M91Used for restoring hydraulic functionality to leaking or sticking spool valves
3rd Spool Valve Assembly
3582518M1External Hydraulic Valve Block
357018AReference for the block the hoses connect to
Hose Connector Kit (for external hydraulic valve)
H10167Aftermarket kit for connecting hydraulic hoses to the valve block
½” ISO 5675 female quick couplers
Generic part
NBR/FPM spool valve seals
Generic part
Replacement hydraulic oil filters
Generic part
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