Manitowoc Grove GRT8100 User Manual

Grove Published 3-25-2020, Control # 595-10 4-35
GRT8100 OPERATOR MANUAL SET-UP AND INSTALLATION
4
Tilt-Up Panel Procedure Using the Heavy
Duty Boom Extension
Refer to Tilt-Up Panel Lifting, page 2-21, in the Safety
Information section for more information.
Tilting from Vertical to Horizontal
• Lift the load on the heavy duty boom extension (Detail
A).
• The hoisting rope on the main boom remains unloaded
at first but the rope must not become slack. Then lift the
load via the main boom until the load is horizontal. Then
lower the load uniformly using the two hoists.
Tilting from Horizontal to Vertical
• Lift the load horizontally using the two hoists (Detail B).
• Then slacken the lifting rope of the boom extension until
the load is suspended vertically. Lower the load via the
main boom and pay-out the lifting rope of the boom
extension. Ensure that the rope does not have slack.
Removing Heavy Duty Boom Extension
1. Fully extend and set outriggers.
2. Position boom over front of crane.
3. Fully retract all boom sections.
4. Lower boom to minimum elevation.
5. Attach a suitable lifting device to the boom extension. Lift
the boom extension enough to take the load off of the
anchor fittings and attachment fittings.
6. Remove retainer clips from attachment pins. Remove
attachment pins from anchor fittings and attachment
fittings of the boom nose.
7. Lift the boom extension from in front of the boom nose.
DANGER
Death or serious injury may result if the permissible
working loads and RCL programs are not observed.
Only lift loads weighing less than/or equal to the
permissible load of the heavy duty boom extension in the
appropriate working radius.
The load's center of gravity must move towards the crane
(Figure 4-23, A & B). Any other use is considered
non-intended use and is prohibited. For examples see
Figure 4-24, C & D.
Movement of the load during tilting shall be done such
that the moment decreases.
8803-2
FIGURE 4-23
A
B
DANGER
Death or serious injury may result if the boom is
overloaded.
If you proceed in accordance with Detail C / Detail D, the
load will swing outward and the load torque will increase.
This work method can cause the machine to tip or the
boom system to become overloaded and is therefore
strictly prohibited!
8803-3
FIGURE 4-24
C
D

Manitowoc Grove GRT8100 Specifications

General

Brand	Manitowoc
Model	Grove GRT8100
Category	Construction Equipment
Language	English