Manitowoc Grove GRT8120 User Manual

Grove Published 3-22-2021, Control # 702-02 5-31
GRT8120 OPERATOR MANUAL SET-UP AND INSTALLATION
5
7. If necessary, raise the front mounting pin handle
(1, Figure 5-35) to unlock the boom extension
installation pins.
8. If necessary, turn the jack screw (3, Figure 5-39)
clockwise to fully retract the boom extension installation
pins (4) using an impact wrench, extension, and 14 mm
socket.
9. Using a sling attached to an auxiliary crane, lift the boom
extension in front of the boom. For more information
about attaching points for the sling, see Lifting Points,
page 5-25.
10. Raise and lower the boom extension as necessary to
align the boom extension anchor fitting holes
(1, Figure 5-39) with the boom nose attachment lug
holes (2). Align and secure the boom extension
installation pins (4) in the holes in the boom nose using
an impact driver, turning the jack screw (3)
counterclockwise.
11. Lower the front mounting pin handle (1, Figure 5-36) to
lock the boom extension installation pins.
12. Remove pins (5, Figure 5-39) and retaining clips (6)
from the stowage bracket. Secure the boom extension to
the boom nose using four pins (5) inserted through the
boom extension anchor fitting holes (1) and the boom
nose attachment lug holes (2). Secure the pins (5) with
retaining clips (6). Use the jack (1, Figure 5-37) as
necessary to install the fourth pin as follows:
a. Install three pins to attach the boom extension to the
boom nose.
b. Operate the jack handle (2, Figure 5-37) to align the
holes on the boom extension with the hole in the
boom nose.
DANGER
When installing the boom extension, make sure that all
personnel and equipment are kept clear of the swing path.
FIGURE 5-35
9967
1
FIGURE 5-36
1
10088-13a
FIGURE 5-37
1
3
2
9914

Manitowoc Grove GRT8120 Specifications

General

Brand	Manitowoc
Model	Grove GRT8120
Category	Construction Equipment
Language	English