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6.
Remove the Allen screws and spacing
tubes and remove the control valve from
the valve block. Keep track of the two o-
rings that are between the control valve
and the valve block.
7.
When replacing the control valve, move
the nipple, including the rubber/steel
washer for the forward hose, to the new
valve. Keep in mind that this nipple is to
be equipped with a throttle, which the
other nipple lacks.
8.
Fit the O-rings into the valve and refit the
valve in the valve block with the Allen
screws fitted with spacing tubes.
9.
Refit the nipple without the throttle with
the washer in the connector for the upper
hose.
10. Connect the hydraulic connectors. Twist
the hoses so that they do not chafe
against any sharp edges. The upper
hose on the valve shall run to the forward
cylinder connector and be pointed
forwards so that it is free from the cover.
11. Remove the transmission cover and top
up with hydraulic fluid. Be observant
when running the engine and top up so
that the tank is not emptied.
12. Test run and bleed the hydraulic system
of excess air. See "Bleeding the
Hydrostatic and Hydraulic Systems PR
17 AWD, PF 21 AWD" on page 66.
13. Replace the removed covers.
102
English-
HYDRAULIC SYSTEM
Control valve
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