Manitowoc Grove GRT880 User Manual

Grove Published 3-25-2020, Control # 643-04 4-15
GRT880 OPERATOR MANUAL SET-UP AND INSTALLATION
4
20. Slightly raise or lower boom to help control the boom
extension base section swing. Using rope attached to tip
of the boom extension base section, swing boom
extension base section to the side of the boom base.
21. Elevate boom and push in on the boom extension base
section to align the stowage lugs on the boom extension
base section with the guide ramp and stowage pins on
the stowage brackets, then fully retract the boom.
22. Fully lower boom.
23. Secure boom extension base section to front stowage
bracket (5, Figure 4-20) on boom base using lock hitch
pin (13, Figure 4-20). Ensure lock hitch pin is pushed in
all the way, then secure with retaining clip.
24. Remove upper an lower right attachment pins from the
anchor and attach fittings of the boom extension base
section and boom nose. Stow attachment pins in the
stowage lugs on the right side of the boom extension
base section, then secure with retaining clips.
25. Remove caps and connect boom extension mount
control pendant to connector on front of boom base
.
26. Using control pendant, fully retract middle stowage
bracket (10, Figure 4-20).
27. Ensure the two stowage lugs on the boom extension
base section are fully engaged with the pins
(14, Figure 4-20) on front stowage bracket
(5, Figure 4-20).
NOTE: If boom extension fly section and boom extension
base section are being stowed together, perform
step 28.
If boom extension fly section remained on boom
stowage brackets, perform steps 30 through 31.
28. Secure boom extension fly section to rear stowage
bracket (1, Figure 4-20) on the boom base using the
attachment pin.
29. Secure attachment pin with retaining clip.
Skip to step 32.
30. Remove attachment pin from stowage holder on the
boom extension base section and use it to secure the
boom extension fly section to the boom extension base
section. Secure attachment pin with retaining clip.
31. Remove pin (1, Figure 4-19) from boom base
attachment bar (3). Move locking bar (10, Figure 4-20;
2, Figure 4-19) to boom extension base section and
install pin (1). Secure with retaining clip.
32. Disconnect control pendant and replace caps.
33. Rig boom nose and hoist cable as desired. Operate
crane using normal operating procedures.
DANGER
When stowing the boom extension base section, ensure
all personnel and equipment are kept clear of swing path.
Uncontrolled movement of boom extension base section
can cause death, injuries, or damage to equipment.
CAUTION
Failure to maintain proper clearance between the boom
extension base section anchor fittings and boom nose
attachment fittings could cause fittings to contact each
other during operation of the boom.
FIGURE 4-18
6642-8
FIGURE 4-19
6642-9
2
2
3
1
1

Manitowoc Grove GRT880 Specifications

General

Brand	Manitowoc
Model	Grove GRT880
Category	Construction Equipment
Language	English