Manitowoc Grove GRT655 - Page 228

5-26 Published 3-23-2020, Control # 654-04
SET-UP AND INSTALLATION GRT655/655L OPERATOR MANUAL
6. Make sure the attachment pin securing the boom
extension to the front stowage bracket is engaged (1,
Figure 5-18).
7. Remove the attachment pin securing the boom
extension to the rear stowage bracket. Place the
attachment pin in the stowage hole and secure with
retaining clip.
8. Using the tag line, swing the boom extension out to
engage the boom extension anchor fittings
(1, Figure 5-19) with the boom nose attachment lugs (2).
9. Attach the boom extension base section to the boom
nose by installing the right side attachment pins through
the anchor fittings and attachment lugs.
Use an impact wrench and the provided extension
(80104116) and socket (80104383) to turn the jack
screw (3, Figure 5-19) counterclockwise to engage the
attachment pins. Make sure the attachment pins are fully
engaged.
10. Remove the cross pin (1, Figure 5-20) at the front
stowage bracket. Place the cross pin in the stowage
hole and secure with retaining clip.
11. Disconnect the boom extension from the front stowage
bracket by using an impact wrench and the provided
extension (80104116) and socket (80104383) to turn the
jack screw counterclockwise (1, Figure 5-21).
Make sure the jack screw bottoms out and the top
attachment pin is fully disengaged.
FIGURE 5-18
9216-9
1
FIGURE 5-19
9216-2
3
1 2
21
DANGER
Boom Extension Fall Hazard
An unsecured boom extension may fall resulting in death
or serious injury.
Do not remove the cross pin (1, Figure 5-20) unless the
boom extension is securely attached to the boom nose.
FIGURE 5-20
1
9216-9