Massey Ferguson 0A.60.1E: External Hydraulic Valve 6 Issue
Issue description
Indicates a malfunction, connection problem, or performance failure associated with the 6th external hydraulic remote valve (spool valve) on the tractor. This can result in a drop in hydraulic pressure, slow response times, or jerky/erratic movements when trying to control attachments.
Applies to these machines
41 machines- 7724S
- 5712SL
- 7722
- 7722S
- 5713SL
- 7720S
- 7716
- 7718
- T4
- 7715
- 5710SL
- 7726
- 7726S
- 5711SL
- 7718S
- 7719
- 7714
- 7716S
- 7720
- Tier 4 (2015-2021)
- 7715S
- 7724
- 4707
- 4708
- 4709
- 4710
- 5608
- 5609
- 5610
- 5611
- 5612
- 5613
- 7614
- 7615
- 7616
- 7618
- 7619
- 7620
- 7622
- 7624
- 7626
Check the cause
Verify the hydraulic fluid (UTTO) level and condition, looking for contamination such as metal shavings or dust, and ensure the filter was changed within the last 300-500 hours.
Inspect the external hydraulic valve 6, hoses, couplers, and seals for visible leaks or physical damage.
Check the wiring harness and electrical connectors going to the electric spool slice/valve for broken wires, corroded pins, or loose plugs.
Perform an operational test manually or via cab controls to determine if the valve is physically stuck or if the issue is purely electrical.
Repair steps
Depressurize the System
Turn off the tractor and actuate the hydraulic levers/controls to relieve all residual hydraulic pressure before beginning work.
Drain/Flush Fluid (If Contaminated)
If the diagnostic check revealed contaminated fluid, drain the hydraulic fluid and replace the hydraulic filter.
Disconnect Valve
Disconnect the electrical harness plugged into External Hydraulic Valve 6.
Remove the Valve
Unbolt the hydraulic lines connected to the valve, capping them to prevent contamination. Unbolt the spool slice from the valve bank.
Rebuild or Replace
Depending on the diagnosis, either rebuild the valve using an OEM repair kit (replacing internal seals and O-rings) or install a completely new electric spool slice.
Reinstall
Bolt the new/rebuilt valve back into the valve bank. Reconnect the hydraulic lines and plug in the electrical connector.
Programming
If replacing an electric spool slice on modern series tractors, the new valve unit must be programmed to the tractor's ECU using a compatible diagnostic tool.
Test
Refill the system with clean UTTO hydraulic fluid, start the tractor, and test the remote valve for proper operation and leak-free performance.
Parts you might need
(6)Electric Spool Slice (Valve Unit)
3797234M6Alternate/superseded numbers: 3797234M5, 3797234M4, 3797234M3, 3796930M12, R917007388. Fitment note: Used on 6400, 6600, and 7400 series; requires programming to the tractor.
Pilot Pressure Control for Electric Spool Valve
R917008801Hydraulic Auxiliary Spool Valve (Older 6100 Series)
3108256M1Alternate part number: 3796083M3
Spool Valve Repair Kit
3176423M91Spool Valve Cable (6400 Series)
67494Hydraulic Filter & UTTO Fluid
Generic requirement for hydraulic system maintenance.
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