Grove Published 3-22-2021, Control # 702-02 5-23
GRT8120 OPERATOR MANUAL SET-UP AND INSTALLATION
Boom Extension Mounting Brackets
NOTE: The fly section and boom extension base section
must be connected together in the stowed position
to secure the boom extension to the side of the
boom.
The main boom base section features the following mounting
brackets for stowing the fly section and boom extension base
section:
• Rear Boom Extension Mounting Bracket—Located
nearest to the superstructure cab is the rear boom
extension mounting bracket (1, Figure 5-27). The boom
extension base section is pinned to the fly section. The
fly section is secured to the side of the main boom with
the electrically actuated pin (2).
• Front Boom Extension Mounting Bracket—Located
nearest the boom nose is the front boom extension
mounting bracket (6, Figure 5-27). The boom extension
base section is secured to the side of the main boom
with the electrically actuated pin (3, Figure 5-26), which
is part of the Boom Extension Pin Interlock Mechanism.
For more information, see Boom Extension Pin Interlock
Mechanism, page 5-21.
• Middle Fly Section Mounting Bracket—Located near the
lift cylinder pin. The middle fly section bracket
(9, Figure 5-27) secures the fly section to the main
boom.