Massey Ferguson A.32.20: External Hydraulic Valve 3 Issue

The tractor's onboard diagnostic system has detected a malfunction, abnormal reading, or operational failure associated with the third external remote hydraulic valve (spool valve).

• 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

1. 1

   Check the hydraulic fluid level and condition. If the fluid is milky, it indicates water contamination which can cause valve malfunctions.

2. 2

   Inspect the remote hydraulic valve 3, couplers, and fittings for external fluid leaks or physical damage.

3. 3

   Test the pressure output and remote valve operation. Watch for sluggish implement response or whining noises, which are early signs of a clogged hydraulic filter or debris in the valve.

4. 4

   Inspect the electrical connections and wiring harness leading to the hydraulic valve for corrosion, loose pins, or damage, as connection problems are a common cause of hydraulic valve DTCs.

1. 1

   Clean the Area

   Thoroughly clean the area around the remote hydraulics and use dust caps to prevent any dirt or debris from contaminating the system during repair.

2. 2

   Reseal or Replace the Valve

   If the valve is leaking or internally bypassing, it will need attention. For tractors equipped with Bosch SB23 remote valves, you can use a specialized spool valve replacement/reseal kit to reseal the leaking valve rather than replacing the entire expensive unit.

3. 3

   Replace Lines/Fittings

   Replace any damaged hoses, O-rings, or fittings connected to Valve 3.

4. 4

   Flush the System (If Contaminated)

   If the hydraulic fluid was milky or contaminated with debris, drain all fluid completely, replace the hydraulic filters, refill with clean multi-grade hydraulic fluid, cycle the system, and refill again for best results.

5. 5

   Clear Codes

   Use a compatible diagnostic interface device to clear the 0A.32.20 code from the system and verify the repair.