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2.3 OPERATIONS AND CHECKS AFTER STARTING ENGINE
Never refuel (diesel oil) while the engine is in operation.
Always stop the engine when refueling.
• If any abnormal condition takes place during the warm-up operation, immediately press the
engine emergency stop switch to stop the engine for emergency. Then, turn the starter switch
to the “OFF” position. The power to the electrical system will be shut off.
• Always perform the warm-up operation. The sufficient warm-up operation is necessary
particularly when it is cold.
Insufficient warm-up operation will slow down the movement response of the traveling system
or crane system to the operation levers, resulting in serious accidents.
• Always check the operation of the crane after warm-up operation.
Be careful not to let the hook block interfere or collide with the boom.
• Be careful not to let the boom hit the operator or this machine when slewing the boom.
• If you find any abnormality during the crane operation check, stop the machine immediately
for emergency and repair.
Using the system in abnormal condition can result in serious accidents.
CAUTION
• The appropriate temperature of the hydraulic oil is 50 to 80 °C.
Even when operating at low temperature by necessity, increase the temperature of the
hydraulic oil to about 20 °C.
• Do not idle away suddenly until the warm-up operation is done.
• When the engine has started, check if the “battery charge monitor” and “engine oil pressure
monitor” went off. If there is any abnormality, repair.
• Do not leave the engine in low idling or high idling for more than 20 minutes.
If idling is necessary, apply load from time to time or operate at the medium engine speed.
When using the engine at low speed, idle away the engine for about 5 minutes once a day.
Perform the warm-up operation as follows once the engine has
started.
1. Leave your foot away from the acceleration pedal (6). Keep the
engine idling and continue the operation with no load for about 5
minutes.
2. Check if there is any abnormality with the engine exhaust gas
color, noise, and vibration.
If there is any abnormality, repair.
3. Operate the work selector switch to the “OUTRIGGER” position.
4. See “Operation 2.14 Outrigger Setting Operation” and set the
outriggers.
5. See “Operation 2.16 Operations before Crane Operation” to
loosen the hook block from the stowing position.
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