Manitowoc GROVE RT890E Operator's Manual page 85

RT890E
With this, the connection is in the correct position for next
unrigging.
Establishing a connection
• Place the lattice extension on the run-up rail.
• Check if the locking pin (4) is pulled out of the bore hole
(3).
• Check if the lever (7) is under the bracket (6).
• Swing the lattice extension on the run-up rail sideways
onto the main boom. First the slewing axle (1) is pressed
down by the holder (2) and then it is locked in the holder.
• Check if the slewing axle projects upwards from the
bracket.
SET-UP AND INSTALLATION
• Remove the locking pin (4) from the holder (5), insert it in
the bore holes and secure it with the retaining pin.
Connections in the middle area
When connecting in the middle area, three different joints
can be established:
- 23 ft (7 m) section/33 ft (10.1 m) section joint
- 23 ft (7 m) section/main boom joint
- Joint at the 33 ft (10.1 m) section
23 ft (7 m) section/33 ft (10.1 m) section joint
This joint has to be established:
- when rigging the 56 ft (17.1 m) two-stage
swingaway lattice extension - before the lattice
extension is swung onto the main boom head,
- when rigging the 56 ft (17.1 m) two-stage
swingaway lattice extension - after the 23 ft (7 m)
section was folded onto the 33 ft (10.1 m) section,
- when rigging the 33 ft (10.1 m) swingaway lattice
extension - after the 33 ft (10.1 m) swingaway lattice
extension was swung sideways onto the main
boom,
- before removing the two-stage swingaway lattice
extension.
• Fasten the locking bar (1) with a pin (2) onto the 33 ft
(10.1 m) section and with a pin (3) onto the 23 ft (7 m)
section.
• Secure both the pins, each with one retaining pin.
33 ft (10.1 m) section/main boom joint
This joint has to be established:
4
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