Grove Published 7-23-2020, Control # 668-02 5-83
GRT9165 OPERATOR MANUAL SET-UP AND INSTALLATION
Installing the Boom Extension on the Lattice
Insert
NOTE: This procedure assumes the fly section is stowed
on the boom extension base. For information about
deploying the fly section, see Stowing the Fly
Section, page 5-64.
NOTE: This procedure applies to manual and hydraulic
boom extensions unless otherwise noted.
1. Make sure the crane is set up on outriggers. For more
information, see Using the Outriggers, page 4-21.
NOTE: An auxiliary crane with sling is required to install
the boom extension on the boom nose.
2. Retract and lower the boom to horizontal.
3. Tie a tag line to the boom extension (1, Figure 5-70).
4. Using a sling attached to an auxiliary crane, lift the boom
extension and fly section (1) in front of the lattice insert
(2). For more information about attaching points for the
sling, see Lifting Points, page 5-50.
5. Raise and lower the boom extension (1) as necessary to
align the boom extension anchor fittings with the lattice
insert attachment lugs. Secure the boom extension and
fly section to the lattice insert using pins (3). Secure the
pins (3) with retaining clips (4). If necessary, use the jack
to install the fourth pin.
6. Connect boom extension electrical connector to the
lattice insert electrical connector. For more information,
see Boom Extension and Lattice Insert Electrical
Connections, page 5-72.
7. Install the anti-two block switch. For more information,
see Anti-Two Block (A2B) Switch, page 5-32.
8. If installing the hydraulic boom extension, connect
hydraulic hoses between the lattice insert and hydraulic
boom extension. For more information, see Boom
Extension-to-Lattice Insert Hydraulic Connections, page
5-85.
9. Remove the sling from the boom extension.
10. Raise the rear mast sheave assembly as follows:
a. Hold the handle (1, Figure 5-71) and remove the
retaining clip (2) and pin (3).
b. Raise the mast (4). Make sure the connecting point
holes are aligned.
c. Insert Pin (3). Secure the pin with retaining clip (2).
DANGER
Boom Extension Hazard!
To avoid death or serious injury, follow procedures and
cautions in the Operator and Safety Manuals and decals
during erection, stowage and use of boom extension.
Install and secure all pins properly and control boom
extension movement at all times.
FIGURE 5-70
12
3
4
Four
Places
10015
1
3
2
1
3
2
Lowered Position
Raised Position
FIGURE 5-71
4
4
10002
10003
10004
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