29
500 Series
Speed range switch
Speed range with
standard tires
0-9 km/h 0-19 km/h
Pulling force, forward
100% 50%
Pulling force, reverse
100% 25%
Drive speed range selection switch
Avant 530 is equipped with two-speed hydraulic drive
motors. Drive speed range can be selected with the switch
on the control panel right (see page 26). In addition to
speed, the speed range switch affects the pulling force as
shown in table below.
Higher speed range is intended for longer
travels where high pulling force is not necessary.
Risk of abrupt movement - Do not
change the drive speed range while
driving with a higher speed. Always
stop the machine rst or slow down the
speed before switching on higher or
lower speed.
Risk of loss of control - Be careful
when driving at higher speed range.
Abrupt control movements can cause
the loader to roll over. Do not turn
the steering wheel quickly when you
drive at high travel speed. Drive slowly
whenever carrying loads, driving on
inclined or rough terrain, or on slippery
surfaces. Always reduce speed before
sharp turns.
Drive release valve
The switch with the text LOCK
controls a valve, which is used to
divert the oil ow between left and
right side hydraulic motors. This
affects the pulling force.
LOCK OFF: In this mode, the
hydraulic oil ows in series from motor to motor. The
wheels will roll more freely and the loader leaves less tire
marks on soft surfaces.
LOCK ON: In this mode the hydraulic oil ows in parallel
between the hydraulic motors in each side, similar to a
differential lock in operation. This improves the towing
capability of the loader.
Parking brake switch
Avant 523/528/530 is equipped with a hydraulic parking
brake. The parking brake is operated with the switch on
the control panel right (see page 26). On cab LX/DLX the
switch is located in the panel up right.
• A red indicator on the switch lights up when
parking brake is engaged.
• The green backlight under the “P” is lit all
the time.
The parking brake engages automatically when the engine
is stopped. The brake can be released only when the
engine is running and there is hydraulic pressure in the
system.
Risk of sudden stop - Do not engage
the parking brake when the machine
is moving unless in emergency.
Using the brake while moving may
cause the locking of wheels and
sudden stopping of the machine.
If the parking brake is engaged
repeatedly when the machine is moving
the brake plates in the drive motors
will get worn quickly. Always stop the
loader before engaging the brake.
Anti slip valve (option)
If the loader is equipped with the
optional anti-slip valve, there is an
additional switch on the back of the
joystick. The valve equalizes the
oil ow between the left and right
side hydraulic motors, improving
traction on slippery and uneven
surfaces. The anti slip valve is
engaged by pressing continuously
on the switch on the joystick. As soon as the switch is
released, anti slip valve is released. The function of the
anti slip valve depends also on the position of the drive
release switch:
X-lock OFF: The anti slip valve equalizes the oil ow
between the left and right hydraulic motors, but some
oil will pass between the left and right side of the loader
through the open X-lock valve.
X-lock ON: The anti slip valve equalizes oil ow between
the left and right hydraulic motors - all four wheels spin
equally and provide the best possible traction.
Operating instructions
CAUTION
CAUTION
CAUTION
NOTICE
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