Heavy Duty Luffing Boom Extension; Installation And Removal; Heavy Duty Nose Sheave; Stowed Position - Manitowoc Grove RT9150E Operator's Manual

RT9150E OPERATOR MANUAL
1. Verify the swivel pin (1) (Figure 4-87) is installed and
secured with a retaining clip.
2. Remove the mounting pins from the mounting lugs (2).
3. Insert the mounting pins into the storage holes (3) and
secure them with retaining clips.
4. Remove the transport pin (4).
5. Swing the auxiliary boom nose onto the side of the main
boom.
6. Insert the transport pin in the transport lug (5) and
secure it with a clip.
12 ft (3.6 m)
Heavy Duty

Installation and Removal

Installation and removal of this extension is the same for the
standard luffing extension, refer to Installing the Folding
Boom Extension, page 4-25.
The two lattice extensions are removed from the 12 ft section
using a suitable lifting device to remove the load from the
four attachment lugs and removing the attachment pins.

Heavy Duty Nose Sheave

Work Position
2
1
Grove
24 ft (7.3 m) Section
FIGURE 4-89
3
Published 2-23-2017, Control # 644-00
SET-UP AND INSTALLATION

HEAVY DUTY LUFFING BOOM EXTENSION

The heavy duty boom extension (Figure 4-88) consists of
three sections:
• a 12 ft (3.6 m) heavy duty section with luffing cylinder
and fold down sheave
• a removable 24 ft (7.3 m) lattice section
• a fold-out 23 ft (7 m) stinger or fly section.
The heavy duty boom extension is designed for the crane it
was delivered with. Each section has the same serial
number as the crane.
23 ft (7 m) Stinger Section
1. Remove the retaining clip (1) (Figure 4-89) and then the
pin (2).
2. Rotate the sheave into the work position.
3. Secure the sheave assembly with the pin and retaining
clip.

Stowed Position

1. Remove the retaining clip and then the pin.
2. Rotate the sheave up into the stowed position, as shown
(Figure 4-89).
3. Stow the pin (1) and secure with the retaining clip (2).
FIGURE 4-88
4
4-53