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Bleeding the steering system:
This procedure is best carried out by two people.
To fill the complete steering system after fitting a new steering rack, oil
lines or because of excessive hydraulic fluid loss, start and then
immediately stop the engine several times. This procedure causes the
fluid level in the reservoir to sink rapidly, therefore ensure that the
reservoir is refilled constantly with 'Pentosin' (000.043.206.56) as the
engine runs. The reservoir must never be allowed to run dry during this
procedure.
The electric hydraulic pump only operates when the engine is running. Fill
the reservoir before starting the engine to bleed the system. Recheck the
reservoir level immediately after the engine has started.
Rotate the steering wheel quickly and repeatedly from one lock to the
other to allow air in the cylinders to escape. To prevent unnecessary
system pressure spikes do not rotate the steering wheel against the
stops with any more force than required.
Check the fluid level constantly during this procedure. If the oil level
continues to sink, add "Pentosin" oil till the reservoir fluid level remains
constant and no air bubbles surface in the reservoir when the steering
wheel is turned back and forth.
Check the fluid level with the dipstick integrated into the reservoir top
when the hydraulic pump is running.
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