0A.21.23

Massey Ferguson 0A.21.23: External Hydraulic Valve 2 Issue

Issue description

Indicates a malfunction, connection problem, or spool position sensor fault associated with the tractor's second external hydraulic remote/spool valve.

Applies to these 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

Check the wiring harness and connectors leading to External Hydraulic Valve 2 for connection problems
Verify the Spool Position Sensor values for Valve 2, as sensor value faults are a common trigger for external valve errors
Check communication lines between the Dash and the Valve Module

Repair steps

Consult service manual or technician
Refer to the specific tractor's service manual or consult with a qualified technician to interpret the sensor data and replace the faulty valve or harness.

Parts you might need

(8)

External Hydraulic Spool Valve / Auxiliary Spool Valve
Generic part name

Rexroth Hydraulic Electric Spool Valve (4-pin)
3797234M6
Fitment: 6400, 6600, 7400, and 7600 Series (e.g., 7620, 7622, 7624, 7626)
3797234M6

Hydraulic Spool Valve Assembly
1696239M92
Fitment: Older/utility models including 200, 300, 500, and 600 series
1696239M92

Hydraulic Spool Valve Assembly
1696239M93
Fitment: Older/utility models including 200, 300, 500, and 600 series
1696239M93

Spool Valve
3596140M91
Fitment: 300, 4200, 4300, and 5300 Series
3596140M91

Hydraulic Auxiliary Spool Valve (with load sensing)
3108256M1
Fitment: 6100 Series
3108256M1

Hydraulic Auxiliary Spool Valve (with load sensing)
3796083M3
Fitment: 6100 Series
3796083M3

Hydraulic Spool Valve
3795751M3
3795751M3

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