OPERATION OPERATION
3-97
! The steering oil pressure is low or there is no pressure.
(When the engine has stopped or there is a failure in the steering oil pressure pump, etc.)
When the starting switch is turned to the ON position, the emergency steering automatically carries out a self
check for 3 seconds. For details, see “EMERGENCY STEERING SELF-CHECK FUNCTION ( 3-97 )“.
When the emergency steering controller detects lack of oil
pressure in the steering system, steering oil pressure caution
lamp (red) (3) and central warning lamp (4) light up, and the
alarm buzzer sounds intermittently.
When this happens, if the machine is traveling at a speed of
more than 2 km/h (1.2 MPH), the electric pump motor is auto-
matically actuated and emergency steering pilot lamp (green)
(2) lights up.
Steering oil pressure caution lamp (red) (3) lights up to inform
the operator that there is a failure in the steering system.
If steering oil pressure caution lamp (red) (3) lights up, move the machine immediately to a safe place and stop it.
Locate the cause and do not operate the machine until it has been repaired.
REMARK
If any function of the oil pressure system is used when the engine is running at low speed, steering oil
pressure caution lamp (red) (4) may light up for a moment, but if the lamp goes out again soon, there is no
problem.
When the emergency steering controller detects that the oil pressure in the steering circuit has been restored, the
actuation of the emergency steering system is stopped.
EMERGENCY STEERING SELF-CHECK FUNCTION 0.
When the starting switch is turned ON, the emergency steering is automatically actuated for approx. 3 seconds to
check that the emergency steering is functioning properly.
When this happens, steering oil pressure caution lamp (red) (1)
and emergency steering pilot lamp (green) (2) light up.
The emergency steering function check is not carried out in the following cases.
! If the starting switch is turned ON, turned OFF again without starting the engine, and is then turned ON again.
! If the starting switch is turned ON again immediately after stopping the engine when the steering oil pressure
has not gone down completely.
! When automatic preheating is being carried out.
WHEN AUTOMATIC PREHEATING IS BEING CARRIED OUT
When automatic preheating is being carried out, the emergency steering self- check function is not actuated.
To check the emergency steering function, press the emergency steering switch after completing the warming-up
operation.
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