Steering - Hitachi ZW180 Operator's Manual

STEERING

WARNING: Avoid quick steering while driving the ma-
chine at high speeds, while driving on a steep slope,
or while raising the lift arm to the maximum position.
Failure to do so may cause the machine to turn over.
Never attempt to stop the engine while steering the
machine. If the engine is stopped, the steering wheel
will lock and the parking brake will be applied so that
the steering operation will become impossible.
IMPORTANT: When the steering wheel is fully turned, the
front and the rear frames come in contact
with the stoppers so that the steering wheel
does not rotate further. If the steering wheel
is forcibly turned moreover, the engine may
stall or malfunction of the steering system
may result.
Turn the steering wheel towards the direction you intend to
steer the machine during drive operation.
NOTE: This machine has an articulated frame. The front and
rear frames are coupled by a connection pin (center
pin) so that the rear wheels follow the tracks of the
front wheels. Turn the steering wheel smoothly so as to
follow the motion of the machine.
EMERGENCY STEERING
If the oil pressure in the steering system becomes abnormal,
the emergency steering system is activated so that steering
operation can be achieved. If the emergency steering system
is activated, the emergency steering indicator lights and the
buzzer sounds. Immediately park the machine in a safe loca-
tion. Then, contact your nearest Hitachi dealer.
IMPORTANT: The emergency steering system is provided
for a provisional use. If continuously used
for more than 60 seconds, damage to the
system may result.
Even though the machine is equipped with the emergency
steering system, if the steering function becomes inoperable
during drive operation, press the emergency steering check
switch on the right console to activate the emergency steering
system. Then, immediately park and stop the machine in a safe
location.
NOTE: When the engine is started, the system activation
sound (metallic clank) emits for approx. 2 seconds to
automatically check the emergency steering system
function.
NOTE: Before operating the machine, press emergency steer-
ing check switch (1) to confirm that the emergency
steering pump normally operates.
DRIVING THE MACHINE
4-8
M4GB-04-002
1
M4GB-04-088