AVANT 528 - Maintenance of Hydraulic Systems

47
500 Series Maintenance and service
Safety instructions - Read safety
instructions before any maintenance
work
Avoid injury during
maintenance work - Follow
all instructions and
safety precautions during
maintenance.
• Stop the engine and let it cool
down before any inspection,
maintenance, or service
operation.
• Lock the boom lift cylinder with
the service support before going
under the boom.
• Apply parking brake. Always
park the loader on level surface
before maintenance work.
• Install the frame lock when lifting
the machine, for instance when
changing tires
• Before working on the engine
or equipment, disconnect the
battery.
Risk of burns - Hot parts. Allow
engine to cool before accessing
the engine. Engine and exhaust
parts may be extremely hot after
use.
The adjacent warning label
is located near the engine.
Hot areas include the engine
in general, and especially its
exhaust pipe(s) and surrounding
areas.
Maintenance of hydraulic systems
Check hydraulic hoses and components only when the
engine is stopped and hydraulic pressure is released.
Repair all leaks as soon as you have noticed them,
because a small leak can quickly change into a big one.
Do not operate the machine if you have noticed faults
or leaks in hydraulic system. Leaking hydraulic uid can
cause serious personal injuries and is harmful to the
environment.
Check hydraulic hoses for cracks and wear. Follow the
wear of the hoses and stop operation if the outer layer of
any hose has worn out. If there are signs of oil leakage,
put a piece of cardboard under the probable leakage
place in order to nd the leakage. If you nd a fault, the
hose or the component must be replaced. Contact your
Avant dealer or service for spare parts.
Never handle hydraulic
components if hydraulic system
is pressurized - Risk of injection
of hydraulic oil through skin.
High pressure hydraulic uid can
cause serious injuries. Never use
hands to search for leaks. Do not
operate the machine if you have
noticed a fault in the hydraulic
system. See a doctor immediately
if hydraulic uid penetrates your
skin.
Risk of burst of hydraulic oil -
Isolate hydraulic accumulator
before service (Loaders equipped
with optional Smooth Drive system
only).
If the loader is equipped with the
smooth drive option, a pressure
accumulator is tted to the boom
hydraulic circuit. Do not disconnect
any hydarulic component before
the accumulator has been isolated
from the circuit and the residual
pressure has been released.
The uids in the machine are harmful to
the environment. Take waste oil and uids
to recycling station according to the local
regulations in your area.
Wear protective glasses and
gloves when servicing the
machine.