Manitowoc Grove RT9150E Operator's Manual page 219

RT9150E OPERATOR MANUAL
Unlocking the Telescopic Section
Refer to Figure 3-169.
Move the right control lever for telescoping.
• If necessary, the telescope cylinder locking pins (3) will
extend first.
• The section locking pins will (2) retract:
Yellow: Intermediate position,
Red: Unlocked.
In the unlocked position, the symbol (1) is yellow.
If the control lever is moved, the telescopic section is
telescoped immediately.
Grove
OPERATING CONTROLS AND PROCEDURES
If the symbol (1) (Figure 3-170) is still flashing after
approximately 10 seconds, this means that the section
locking pins are under load.
FIGURE 3-169
Let go of the control lever.
To relieve the load, carefully retract and extend the boom a
little.
Repeated attempts to extend and retract may cause
damage to the boom system.
NOTE:
Published 2-23-2017, Control # 644-00
CAUTION
Boom Damage Hazard!
If removing the load does not cause unlocking, you
must lock the telescopic section again and restart
the unlocking process, refer to Lock Telescope
Cylinder, page 3-142.
FIGURE 3-170
3
3-145