Manitowoc Grove GRT8120, Operator'S Manual

Page: 163 / 448

Grove
Published 3-22-2021, Control # 702-02
4-33
GRT8120 OPERATOR MANUAL OPERATING PROCEDURES
4
Current Telescoping
The display (1, Figure 4-15) shows how far the telescoping
cylinder is extended, e.g. 1293 mm.
The display (2) shows the current main boom length, e.g.
37.0 ft.
The display (3) shows the corresponding telescopic section,
e.g. telescopic section 6.
Position of the Telescoping Cylinder
If the telescoping cylinder is near a locking point:
• The display (3, Figure 4-15) shows the corresponding
telescopic section, e.g. telescopic section 6.
• The display (4) shows one or two arrows, depending on
the distance to the locking point. The display (4) will
show two arrows and the display (5) lock symbol will
show orange when the telescope cylinder is at the
locking point.
Position of the Locking Pins
The current positions of the locking pins are (Figure 4-16):
The area (3) shows an enlarged cut-out.
The current settings are shown in different colors.
Unlocking the Telescoping Cylinder
Unlocking the telescoping cylinder is required for the
telescoping cylinder to be moved separately (without
telescopic section).
The telescoping cylinder and the telescopic section cannot
be unlocked simultaneously.
Prerequisites
Telescoping function enabled – symbol (3, Figure 4-17)
green
Telescoping cylinder locked – symbol (2) green
Telescopic section locked – symbol (1) green
1 on the telescopic section
2 on the telescoping cylinder
Red: Unlocked
Green: Locked
Yellow: Intermediate position
10254-5
FIGURE 4-15
2
1
3
4
5
FIGURE 4-16
10254-5
2
1
2
3
1
10254-7
FIGURE 4-17
2
1
3