Fendt 0A.1.DD – A050 basic control unit / Instrument panel/ABS/operator's seat module: B063 (or S119) - Pressure switch, filter contamination (hydraulic circuit): Filter clogged

The pressure switch monitoring the hydraulic oil filter has detected a pressure differential signifying that the hydraulic filter element is restricted or completely clogged with contamination.

• 922 Vario COM III
• 924 Vario COM III
• 927 Vario COM III
• 930 Vario COM III
• 933 Vario COM III
• 936 Vario COM III
• 200 V/F/P Vario series
• 300 Vario series
• 400 Vario series
• 700 Vario series
• 800 Vario series (including S4)
• 900 Vario series (including COM III, S4, Gen6, Gen7)
• 1000 Vario series

1. 1

   Inspect the hydraulic filter maintenance schedule to see if the tractor is overdue for a filter change.

2. 2

   Check hydraulic fluid condition and level for heavy contamination, sludge, or metal shavings, which could indicate a larger component failure.

3. 3

   Verify the B063 / S119 pressure switch and its wiring harness for physical damage, ensuring the connector is secure and free of corrosion.

1. 1

   Relieve Pressure

   Park the tractor on a level surface, lower all hydraulic implements to the ground, turn off the engine, and relieve all hydraulic system pressure before servicing.

2. 2

   Locate the Filter

   Locate the hydraulic oil filter housing on the tractor.

3. 3

   Remove the Old Filter

   Open the filter housing and remove the clogged hydraulic filter element.

4. 4

   Inspect for Debris

   Check the old element and the inside of the filter housing for unusual or excessive contamination (e.g., metal flakes). Clean the inside of the housing.

5. 5

   Install the New Filter

   Insert a new, direct-replacement hydraulic filter element into the housing and secure the cap/housing according to OEM torque specs.

6. 6

   Top Up Fluid

   Check the hydraulic fluid level. If fluid was lost or is degraded, top it up or replace it with approved clean hydraulic fluid (e.g., Fendt Extra Trans 10W-40 or STOU oil).

7. 7

   Test

   Start the tractor, allow the hydraulic system to pressurize, and operate the hydraulics to ensure the 0A.1.DD warning code clears and does not return.