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