Manitowoc Grove GMK4090 Operating Manual page 655

Locking the tele-
scopic section
Operating manual
GMK4090
Every telescopic section can be locked at the fixed lengths – fixed lengths;
à
p. 11 - 93.
Prerequisites
– Telescoping mechanism on – symbol (3)
green
– Telescopic section unlocked – symbol (1)
red
– Telescoping cylinder locked – symbol (2)
green.
Locking
•
Telescope to the desired fixed length, e. g.
telescopic section (1) 1 to 100%.
If the symbol (4) is displayed, the telescopic
section must be locked.
•
Select and confirm the symbol (3).
The locking pins (2) extend.
– Yellow: Intermediate position
– Green:
3 302 736 en
Crane operation
11.5 Crane operation with main boom
locked – symbol (5) displayed
s
11 - 107