Manitowoc Grove GMK6300L Operating Manual page 223

S
Shifting down
from the highest
gear
H
Operating Manual GMK6300L
Risk of damage from resonance vibrations!
Always maintain a speed below 85 km/h (53 mph). Stop the truck crane
promptly.
When driving downhill, you can also slow down the truck crane as follows,
in addition to using the service brake:
– By shifting down from the highest gear;
– with the additional brake;
– with the transmission retarder;
If you shift down from the highest gear, the braking force of the engine is
increased.
•
Shift down from the highest gear, e.g. to 4th gear.
•
Brake the truck crane.
When a permissible speed has been reached, the transmission will shift
down.
You can also increase the braking force of the engine by switching to
the P (1) driving mode.
If the maximum permissible speed is also reached in a lower gear, the
transmission will automatically engage the highest gear and shift up.
5.3 Driving the truck crane and switching it off
à
p. 5 - 46,
à
p. 5 - 47.
3 112 xxx en
à
p. 5 - 45,
Driving
s
5 - 45