CHECKS BEFORE START
8
C
Coolant Temperature Gauge
To avoid personal injury:
A
Do not open the radiator cap during or just after
operation. Hot coolant may gush out and scald
you. Wait for the coolant to cool down before
opening the cap.
With the starter key at the "
RUN
" position, the coolant
temperature is indicated.
If the coolant temperature indicator is near "
H
", take the
steps below.
Depending on the coolant temperature, the warning
message
"Water temp. is rising"
or
"Overheat Engine
to idle for cooling"
appears. In either case too, follow the
same procedure below.
1. Discontinue the job.
2. Reduce engine rpm's to idle and keep it at idle for 5
minutes.
3. Stop the engine and check the following points (1)-(4).
(1) Low coolant level or leak
(2) Fan belt tension
(3) Mud or dust deposits on radiator
(4) Hydraulic oil leak
C
Overheat warning
1. If the coolant temperature becomes too high, the
message
"Water temp. is Rising"
appears onscreen
for a certain period of time. The LCD display then gets
back to normal, but the coolant temperature sensor
marker "
" starts blinking at 1-second intervals.
A
If this message is displayed, the EGR valve will begin
to close and EGR system will not function. Interrupt the
work and lower the engine rpm, which will reduce the
coolant temperature.
2. The overheat warning appears onscreen. Also the
following message shows up on the LCD display, and
the engine automatically starts idling. (Acceleration is
not operative.)
If the above message appears, take corrective measures,
referring to the
"Precautions in case of Overheat"
section.
A
When the coolant temperature has dropped,
acceleration can be automatically enabled.
(1) Coolant temperature gauge
(1) Coolant temperature sensor marker
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