AVANT 520+ - Main Parts of the Loader

500 Series
Main parts of the loader
7
MAIN PARTS OF THE LOADER
Following picture shows the main parts of the loader:
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Front frame
Front frame is the part of the loader in
front of the articulation joint. On the
front frame are mounted: drivers seat,
operating controls, hydraulic control
valves, hydraulic oil tank, auxiliary
hydraulics outlet, front wheels, hydraulic
motors and the loader boom with
attachment coupling plate.
Back frame
Back frame is the part of the loader
behind the articulation joint. On the
back frame are mounted: engine with
accessories, hydraulic pumps, rear
wheels, hydraulic motors, parking brake
mechanism, battery disconnect switch,
drive release solenoid valve (optional).
Articulation joint
Articulation joint connects the front and
back frame. The loader is steered
hydraulically by the steering cylinder
which is mounted between the front
and back frames. Hydraulic hoses,
electric wires, parking brake wire and
drive cable (if the machine has one) are
conducted through the articulation joint.
Loader boom
Loader boom is mounted on the front
frame with two pivot pins. The
attachment coupling plate is mounted
on the lower end of the boom. There
are two types of booms: standard boom
with fixed length and the optional
telescopic boom which extends 500
mm hydraulically.
Attachment coupling plate
Attachments are mounted on the
attachment coupling plate.
Auxiliary hydraulics outlet
The hydraulic hoses of hydraulically
operated attachments are mounted on
this outlet with quick couplers. The
outlet is double acting: it has two
pressure lines and one return line. It is
also possible to install an auxiliary
hydraulics outlet in the rear of the
machine (optional extra).
Rear mounting system
(optional extra)
If necessary, attachments can also be
mounted on the rear of the machine 
on a mounting plate or a rear lift device.