5-56 Published 7-23-2020, Control # 668-02
SET-UP AND INSTALLATION GRT9165 OPERATOR MANUAL
12. Make sure the boom extension is shown as erected in
the ODM.
13. If installing the hydraulic boom extension, connect
hydraulic hoses. For more information, see Hydraulic
Boom Extension Connections, page 5-73.
14. Remove the slings from the boom extension.
15. Raise the rear mast sheave assembly as follows:
a. Hold the handle (1, Figure 5-42) 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).
16. Raise the front mast assembly as follows:
a. Hold the handle (1, Figure 5-43) of the mast sheave
assembly (2). Remove retaining clip (3) and pin (4).
b. Raise the mast assembly (2) until the connecting
holes are aligned.
c. Insert pin (4) and secure with retaining clip (3).
17. Reeve the hoist rope. For more information, see
Reeving the Hoist Rope, page 5-77.
18. Remove the anti-two block switch from the boom nose.
For more information, see Anti-Two Block (A2B) Switch,
page 5-32. Install the anti-two block switch on the boom
extension. For more information, see Anti-Two Block
Switch on the Boom Extension, page 5-79.
Removing the Boom Extension
Use the following procedure to remove the boom extension
from the boom nose.
NOTE: This procedure assumes the boom extension is
erected on the boom nose and fly section is stowed
on the boom extension base If the fly section is
1
3
2
1
3
2
Lowered Position
Raised Position
FIGURE 5-42
4
4
10002
10003
10004
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.
Lowered Position Raised Position
FIGURE 5-43
1
1
2
3
4
2
9912
9913
10004
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