Massey Ferguson 0A.60.13 – Hydraulic Control Module or Tractor/Transmission ECU: External Hydraulic Valve 6 Issue

A malfunction associated with the 6th external hydraulic remote/spool valve. The underlying condition is typically an electrical connection problem to the valve's solenoid/slice, a sticky spool caused by contaminated oil, or an internal mechanical failure (such as a broken return spring or worn seals causing internal bypassing).

• 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

1. 1

   Inspect the wiring harness and connectors leading to External Valve 6 for electrical connection problems (most common trigger)

2. 2

   Check the hydraulic oil for dirt or contamination, which can cause the spool to stick

3. 3

   Perform a spool leakage check: Position the control handle in 'Neutral', connect a hydraulic hand pump to one of the control valve ports, and pressurize to 2500 psi. Inability to pressurize indicates oil leaking around the spool

1. 1

   Disassemble

   Remove and disassemble the affected external hydraulic control valve (Valve 6).

2. 2

   Clean and Inspect

   Thoroughly clean the valve to ensure no foreign contamination is present. Inspect the spool and bore for scoring or damage.

3. 3

   Replace Wear Parts

   Inspect the detent kit, return/centering spring, and seals. Replace any worn O-rings, broken return springs, or worn detent kits using an OEM repair kit.

4. 4

   Reassemble and Retest

   Reassemble the valve and repeat the spool leakage check (pressurizing to 2500 psi).

5. 5

   Replace Valve (If Necessary)

   If no pressure can be obtained after rebuilding, or if the electrical slice has suffered an internal short/failure, the entire valve assembly must be replaced. Note: If replacing an electric spool slice, the new unit will need to be programmed to the tractor's ECU.