10(20)
An attachment that has not been completely
locked to the loader may fall on the boom or
operator, or under the loader during driving,
causing loss of control of the loader. Before
moving or lifting the attachment, make sure that
the locking pins are in the lower position and come
through the fasteners on both sides. Never move
or lift an attachment that has not been fully locked.
Never use the automatic locking of the locking pins if the plow is lifted o a height of
over one metre. The floating mechanism of the attachment may allow the plow to
tip over when tilted too much. It is recommended to always lower the attachment
on the ground and secure the locking manually.
5.2.
Connecting and disconnecting hydraulic fittings
On 400 to 700 series loaders, the multiconnector type hydraulic coupling is used to connect hydraulic
hoses. If you want to change the type of the fittings on the loader or on the attachment, contact your Avant
dealer or service representative for instructions or installation service. At first, the hydraulic hoses or
cylinders may have air trapped in them, causing inaccurate movements of the plow. The system is self-
bleeding when operating the plow to its extreme positions; separate procedure is not needed to remove air.
Never connect or disconnect quick couplings or other hydraulic components if the
system is under pressure, or if the control lever of the auxiliary hydraulics control lever
is locked on. Connecting or disconnecting the hydraulic couplings while the system is
pressurized may lead to unintended movements of the attachment, or ejection of high-
pressure fluid, which can cause serious burns or other injuries.
Connecting the multiconnector system:
Align the pins of the attachment connector with corresponding
holes of the loader connector. The multiconnector will not connect
if the attachment connector is upside down. Connect and lock the
multiconnector by turning the lever towards the loader.
The lever should move easily all the way to its locking position. If
the lever does not slide smoothly, check the alignment and position
of the connector and clean the connectors. Also shut down the
loader and release the residual hydraulic pressure.
To disconnect the multiconnector system, turn off the auxiliary
hydraulics of the loader, and unlock the multiconnector. To unlock,
push the knob on the side of the connector, and turn the lever to
disconnect.
