AVANT 225, Operator'S Manual, Page: 56 / 84

Avant 220/225
56
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Releasing the residual pressure of hydraulic systems
Make sure that there isn't pressure in the hydraulic system that could cause danger during service operations.C
To release the pressure in hydraulic system:

Stop the engine and lower the boom down completely

Move all control levers, including auxiliary hydraulics control lever, to their extreme end positions a couple of
times

Move also control lever of rear hydraulics (if fitted)

Keep in mind that the boom or attachment can move when releasing the pressure. Move the levers until all
movements have stopped.
Rear auxiliary hydraulics coupling
The rear hydraulics coupling is a double-acting hydraulic. The rear auxiliary hydraulics are controlled with their own
lever, see pages
30 and 35 for further information.
Pair of standard type hydraulic quick couplings are located at the rear of the loader, just above rear weights.

Before you connect or disconnect standard couplings,
relieve hydraulic pressure as described in previous
paragraph.

To connect and disconnect the standard couplings, move
the collar at the end of the female fitting.

Note that the protective caps on the loader and the attachment can be fastened to each other
during operation to reduce the accumulation of dirt.

When disconnecting the standard quick couplings a small amount of oil may drip from the
couplings. Wear protective gloves and have some cloth at hand to keep the equipment clean.
Before you connect or disconnect the standard quick couplings, the residual pressure
must be released as shown above. The conventional quick couplings will not connect, if
there is pressure in the hydraulic system.