Driving
5.3 Driving the truck crane and switching it off
5 - 44 3 112 xxx en Operating Manual GMK6300L
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5.3.4 Driving downhill
Starting The engine must be running.
To start moving, you have to:
– Select the driving direction and wait until the starting gear is shown,
– Release the parking and service brakes,
– Actuate the accelerator.
H
If the truck crane starts to move forwards in neutral position, you can still
select the
forwards driving direction. A gear appropriate to the speed is
engaged and the engine braking power is effective.
Checks when
driving downhill
While driving, the engine speed may not exceed 2,300
rpm. The engine
speed is not limited automatically.
If an air intake inhibitor is present, it will be triggered if the maximum per-
missible engine speed is exceeded and the motor will stop running;
à p. 4 - 25.
• Whilst driving, monitor the current engine speed on the tachometer.
• Brake the truck crane before the engine speed increases into the red
range (1) – over 2,300 min
-1
(rpm).
When the maximum permissible engine speed is reached, a warning buzzer
sounds.
G
Risk of accidents when driving in neutral position!
Never switch into neutral position whilst driving.
In neutral position, the truck crane may accelerate and the engine retarder
is ineffective.
S
Risk of damage due to excessive engine speed!
If the maximum permissible engine speed is reached, shift up to a higher
gear or slow the truck crane down.
This prevents the engine or transmission from being damaged or the air
intake inhibitor from being triggered.
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