AVANT CH100, Operator'S Manual

Page: 21 / 48

21
CH100
HYDRAULIC COUPLINGS ON OLD 200 SERIES LOADERS
In a old 200-series machine, the hose can be
connected by pushing the fitting in the counterpart.
When connecting and disconnecting the 200-series
hydraulics quick couplings, you should pay attention
to their locking. There is a small groove in the collar
of all female fittings, and a small ball near the collar.
When connecting or disconnecting, the groove
and ball must be aligned. The locking prevents the
female and male fittings from being disconnected
from each other by accident when the attachment
moves. The collar may also turn accidentally to the
locking position, making it impossible to connect or
disconnect the couplings.
DISCONNECTING THE HYDRAULICS
Before disconnecting the fittings, place the attachment on solid and level surface and relese the residual
hydraulic pressure.
When uncoupling the attachment from the loader, always disconnect the hydraulic
fittings first before unlocking the quick attach plate, to prevent hose damage and any
oil spills. Reinstall the protective caps on the fittings to prevent dirt from entering the
hydraulic system.
RELEASING RESIDUAL HYDRAULIC PRESSURE
In case residual pressure is left in the hydraulic system of the attachment, it is often possible to disconnect
the hydraulic couplings, but it may be difficult to connect them the next time. If the fittings will not connect,
the residual pressure must be released by turning the auxiliary hydraulics control lever of the loader, when
the engine is turned off. To make sure that there will not be residual pressure in the hydraulic system of the
attachment, shut down the loader engine and move the auxiliary hydraulics control lever of the loader back
and forth before disconnecting the couplings.
CAUTION!
!