How to Replace High Pressure Limit Valve for Fendt 900 Vario COM III?

Here is the instruction show you guide on how to replace high pressure limit valve for Fendt 900 Vario COM III tractor.

Preparations:

AGCO EDT 2025

Fendias 2024v2

Preliminary work:

Drain off transmission oil (approx.87l),unscrew the two screw plugs on the underside of the transmission.

Dismantle 2V3 or 2V4 using socket spanner (SW 27)NOTE:2V3=high-pressure limiting valve, forwards2V4= high-pressure limiting valve, reverse

The high-pressure limiting valves are servo-assisted pressure limiting valves.

New pressure setting: 540 bar

Used pressure setting: 520 + 20 bar

Only replace O-rings if they are damaged, take care with the positioning of the support rings Tighten the2V3 and 2V4 to 250 + 20 Nm, tighten the plug screws to 100 Nm

IMPORTANT: Ifa high-pressure limiting valve (2V3 or2V4)was dismantled for inspection, the transmission must be topped up using the external filling station!

More topics for Fendt tractor,please refer to Fendt tractor trouble repair.

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