Maeda D3001, Operation Manual

Page: 82 / 294

Section 4 – OPERATIONS AND CHECKS AFTER STARTING ENGINE Mini-Crawler Crane M A E D A
4-18 3/2019 MC305C-3
OPERATIONS AND
CHECKS AFTER STARTING
ENGINE
DANGER! Never refuel (diesel oil) while the
engine is in operation.
Always stop the engine when refuelling.
WARNING!
• If any abnormal condition takes place
during the warm-up operation, immediately
press the engine emergency stop switch
(EMO) 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
travelling 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.
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.
Fig. 4-42
2. Check if there is any abnormality with the
engine exhaust gas colour, noise, and
vibration.
If there is any abnormality, repair.
3. Operate the work selector switch to the
"Outrigger" position.
Fig. 4-43
4. See "OUTRIGGER SETTING" on page
4-36 and set the outriggers.
5. See "Before Crane Operations" on page
4-52 to loosen the hook block from the
stowing position.