Working with attachments
Avant 850
88
.
Using the auxiliary hydraulics
Auxiliary hydraulics (hydraulically operated attachments) are controlled with the lever on the control panel, or with
the buttons on the 8 function joystick (see page 50).
The locking position of the lever facilitates operation of the attachments that require constant oil flow (rotary broom,
backhoe etc.). Make sure to release the lever when not operating an attachment to avoid loading the engine
unnecessarily.
DANGER
Crushing and entanglement hazard, risk of injuries from contact with moving parts
- Going near an attachment that is in operation can cause a serious risk of injury.
Switch off auxiliary hydraulics before leaving driver’s seat or stopping the engine. Operate
the controls only when sitting in the driver’s seat. Follow the safe stopping procedure.
The control lever of the auxiliary hydraulics and electric buttons of the joystick (see page 50) directs hydraulic oil
as follows:
1.
Moving the control lever towards the locking position will direct
hydraulic flow to port 1.
This is normally the normal or positive movement of the
attachment.
2.
Moving the lever away from the locking position will direct flow in
reverse direction, pressure in port 2.
3.
The third port is a free return line to tank. This is required by some
attachments.
4.
The 4
th
port is for the integrated electric socket of the optional
Attachment control switch pack.
WARNING
Risk of ejection of machine parts, stones, soil, and other debris - Overspeed of the
attachment can cause injuries or dangerous movements of the attachment.
The
attachment can break down in a dangerous way, throw objects, or produce excessive
noise and vibrations if operated at too high speed. Never exceed maximum allowed
hydraulic flow of the attachment. Check correct operating flow from the operator's
manuals of the attachment, and use the chart on page 37 of this manual.
Summary of Contents for Avant 850
Page 1: ...English Operator s Manual 2020 A441827EN 2020 1 2020 www avanttecno com...
Page 128: ...Avant 850 128...
Page 132: ...Avant 850 132 Notes...
Page 133: ...Avant 850 133 Notes...
