Valtra 6000 Workshop Manual page 912

46. Front PTO
Picture 25. 6250Hi ---6850Hi tractors' oil pump in the front
PTO.
1. Suction filter
2. Drive gear
3. Gear wheel pump
4. Pressure ---limiting valve (20 bar), clutch pressure
5. Safety valve (6 bar)
6. 3/2 --- proportional valve
7. PTO multi ---disc clutch
8. Pressure ---test point
9. Into oil cooler
10. Oil cooler
The pump produces the clutch engaging pressure (20 bar)
and circulates oil through the oil cooler.
Model
1. 8. 2000
Removing pump:
--- drain oil in PTO unit
--- remove the suction filter flange snap ring (slacken first the
centre bolt).
--- remove the flange and filter
--- disconnect prop. valve wires
--- unscrew two pump fixing screws (see picture above)
--- remove the pump from front
Note! The pump can be dismantled by opening the assem-
bling screws. The prop. valve, pressure ---limiting valve (20
bar) and safety valve (6 bar) can be removed
To be observed when fitting the pump:
--- ensure that there are small o---rings round the pump pres-
sure drillings. Fix them with a little grease.
--- check all sealing rings.
859
Code Page
6250Hi--
463 13D
6850Hi