Manitowoc Grove RT9150E Operator's Manual page 262

SET-UP AND INSTALLATION
Falling Objects Hazard!
Ensure the extension connecting pins are always secured
with retaining clips. This prevents unsecured pins from
becoming loose and falling out causing injuries.
4
7. Using the tag line, pull the front of the extension until the
extension mounting lugs (2) (Figure 4-33) align with the
boom head lugs (1).
8. Using a ladder or suitable lifting device, remove the
retainer clips (3) and pull the pins (4) out of the holders
(5). Install the pins through the connecting lugs and
secure with the retainer clips.
9. Have a helper hold, or make secure, the front of the
extension against the main boom.
10. Using a ladder or aerial work platform, use the jib
extension pole, located in the cab, to pull the retaining
clip out of the horizontal locking pin (1) (Figure 4-34).
11. Use the jib extension pole to pull the horizontal locking
pin out of the front latch assembly and place in the
storage lugs (2). Secure with the retaining clip.
Crushing Hazard!
To prevent serious injury or death, do not release the front
latch without the extension being secured with a tag line at
the other end.
4-28
CAUTION
2
1
5
3
7567-7
2
FIGURE 4-33
DANGER
Published 2-23-2017, Control # 644-00
RT9150E OPERATOR MANUAL
Front Latch Assembly
1
7567-8
12. Using the jib extension pole, disengage the front latch
assembly by pushing handle (3) (Figure 4-34) up and
onto the handle rest (4).
13. While maintaining control of the extension with the tag
line, disconnect the tag line from the main boom.
Crushing Hazard!
To prevent serious injury or death, do not stand in the
swing arch of the extension.
14. Use the tag line to pull the extension off the ramp.
15. While maintaining control with the tag line, swing
extension into position on boom nose. The 23 ft (7 m)
section will remain on the boom.
NOTE: If the extension doesn't easily swing around to the
front, slightly lower the boom from horizontal.
16. Using a ladder or suitable lifting device, remove the
retainer clips and pull the pins out of the holders (1)
(Figure 4-35). Install the pins (2) into the connecting lugs
(3). Secure with the retainer clips.
NOTE: If the pins cannot be inserted, the strain can be
taken off the connecting lugs, refer to, Relieving the
Load on Connecting Lugs, page 4-26.
FIGURE 4-34
4
3
2
WARNING