Massey Ferguson 0A.13.1B – Dash / Mid Mount Valve Module: External Hydraulic Valve 1 Issue

Malfunction or communication failure associated with the first external hydraulic remote valve (spool valve). The underlying condition is typically related to a connection problem on the hydraulic valve, an issue with the spool position sensor value, or a lack of communication between the control modules.

• 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 Hydraulic Valve 1 for corrosion, damage, or loose connections

2. 2

   Check the spool position sensor value using a compatible diagnostic tool to ensure it is reading correctly

3. 3

   Verify that there is proper communication between the Dash and the Mid Mount Valve Module

1. 1

   Locate the Valve

   Identify External Hydraulic Valve 1, which is typically located on the rear remote stack or directly on the hydraulic lift cover (under the seat).

2. 2

   Disconnect Power

   Turn off the tractor and disconnect the battery before working on electronic hydraulic components.

3. 3

   Remove and Inspect

   If the issue is electronic (e.g., 6600/7600/7700 series), remove the electric spool valve control switch or sensor and test it. If the issue is mechanical/hydraulic, remove the bolts securing the cap on the hydraulic lift cover and detach the valve from the standpipe.

4. 4

   Replace Faulty Component

   Install the new spool valve, sensor, or selector valve. If installing a base plate or selector valve, ensure the standpipe is correctly located into its seat on the hydraulic pump.

5. 5

   Reassemble and Test

   Secure the valve with the mounting bolts, reconnect all hydraulic lines and electrical connectors, and clear the DTC using a compatible diagnostic tool. Test the hydraulic function to ensure the code does not return.