Komatsu PW98MR-10 Operation & Maintenance Manual page 224

MACHINE OPERATIONS AND CONTROLS
2.
Turn fuel control dial (2) to Low idle (MIN) position.
The engine automatic warm-up is canceled, and the en-
gine speed is lowered.
REMARK
Turbo protect function takes priority over the engine automatic warm-up.
When the turbo protect function activates, run the engine at low idle even the engine coolant temperature is
30 °C or less. Then the engine automatic warm-up starts automatically to increase the engine speed.
For details of the turbocharger protect function, see "TURBOCHARGER PROTECTION FUNCTION (3-152)".
METHOD FOR HYDRAULIC SYSTEM WARM-UP OPERATION
k k
• When warming up the hydraulic equipment, check that
there is no person or obstacle in the surrounding area,
then sound the horn and start the operation.
• Perform the warm-up operation for the hydraulic
equipment until the hydraulic oil temperature caution
lamp displays the proper temperature.
• The warm-up operation for the hydraulic equipment is
necessary not only for the circuit between the pump
and cylinders and between the pump and motor, but
also for the control circuits. Avoid carrying out the op-
eration for just one cylinder or engine or in just one di-
rection. Perform the operation in all directions for all
the work equipment (boom, arm and bucket), swing,
travel, and attachment (if equipped).
• To display the hydraulic oil temperature indicator the
rear camera needs to be deactivated. To deactivate it,
engage the travelling on street mode or put the con-
trols locking lever to L (LOCK).
For more details, see "STREET MODE SWITCH (3-51)"
and "CAMERA IMAGE SELECTOR SWITCH (3-55)"
1.
Check that engine coolant temperature caution lamp (1)
displays the proper temperature.
• Display (A) when temperature is proper: Caution lamp
background (C) is blue.
• Display (B) when temperature is low: Caution lamp
background (C) is white.
If it displays low temperature, perform additional warm up
of the engine until engine coolant temperature caution
lamp (1) displays the proper temperature.
For detail, see "METHOD FOR ENGINE WARM-UP OP-
ERATION (3-154)".
3-156
WARNING
WENAM00061
OPERATION
RKA48653
RKA48680