MACHINE OPERATIONS AND CONTROLS OPERATION
3-76
AMBIENT TEMPERATURE RANGE FOR OPERATION
q The recommended ambient temperature range for operation is -20
o
C to +45
o
C.
q When operating in ambients below 0
o
C, refer to "COLD WEATHER OPERATION (3-117)" for detail of precau-
tions.
AFTER STARTING ENGINE 3
WARNING
q If any trouble occurs, such as sudden stopping or abnormal operation, turn the starting switch to the
OFF position.
q If the work equipment is operated without carrying out the warming-up operation properly, the reac-
tion of the work equipment to the operation of the control lever will be slow and the work equipment
may not move as the operator intends. To prevent such problems, always be sure to carry out the
warming-up operation fully. In cold weather particularly, be extremely careful to carry out the warming-
up operation fully.
Warming-up Operation 3
NOTICE
q When the hydraulic oil is at a low temperature, do not
carry out operations or move the levers suddenly.
Always carry out the warming-up operation. This will
help to extend the machine life.
Do not suddenly accelerate the engine before the
warming-up operation is completed.
q Do not run the engine at low idling or high idling con-
tinuously for more than 20 minutes. This will cause
leakage of oil from the turbocharger oil supply piping.
If it is necessary to run the engine at idling, apply a
load from time to time or run the engine at a mid-range
speed.
REMARK
If the engine water temperature is above 30°C, to protect the turbocharger, the engine speed does not rise for 2
seconds after starting, even if the fuel control dial is turned.
If the hydraulic oil temperature is low, the hydraulic oil temperature monitor display will be white.
A
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