Wacker Neuson WL 50, Руководство оператора

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RELIEVING RESIDUAL PRESSURE IN THE HYDRAULIC SYSTEM
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RELIEVING RESIDUAL PRESSURE IN THE HYDRAULIC SYSTEM 8
Proceed as follows to reduce the residual pressure in the
hydraulic circuits (adhere to the order of the individual work
steps):
Lower the loader lift arms as far as 1. they will go.
Stop the engine. 2.
Immediately after turning off the engine, actuate all the 3.
control levers and pedals for the hydraulic system several
times in all directions.
Relieve the hydraulic reservoir by opening the filler neck, 4.
illustration 1 (Fig. 68).
Remove the preload from the drive‘s system by opening 5.
the return filter, illustration 2 (Fig. 68).
WARNING
Personal injury hazard.
A fine jet of hydraulic fluid under high pressure
can pierce the skin. Seek medical assistance im-
mediately if you get hydraulic fluid in your eyes or
on your skin.
Open only unpressurized hydraulic systems. ►
Residual hydraulic pressure can still be present in
the working hydraulic circuits after the loader lift
arms and attachment are resting on the ground
or working surface.
Do not attempt repair work on hydraulic cir- ►
cuits until the temperature of the components
is comfortable to touch (typically less than 49°C
(120°F)).
Since the loader lift arms and the attachment can
only be actuated within a limited time of the engine
failing, you must lower the loader lift arms as far as
it will go and relieve the pressure in the hydraulic
circuits immediately upon discovering that the en-
gine or the hydraulic system has failed.