Manitowoc GROVE RT890E Operator's Manual page 88

SET-UP AND INSTALLATION
Connections on the left side
The connection needs to be established after the lattice
extension has been swiveled in front of the main boom head
during rigging.
The connection has to be removed so that the lattice
extension can be swiveled onto the main boom side during
unrigging.
Connections on the right side
The connection needs to be established so that the lattice
extension can be swiveled in front of the main boom head for
rigging.
The connection needs to be removed so that the lattice
extension can be swiveled onto the main boom when it is on
the run-up rail during unrigging.
Establishing connections
For these connections you will find are three short pins and
one long pin in holders on the fixed part of the 33 ft (10.1 m)
section.
Connections on the right side
• Swing the lattice extension onto main boom head, until
the bearing points (1) and (4) are in alignment.
• Remove the retaining pins and take the two pins (2) and
(5) out of the holders (3).
• Insert the two pins into the bearing points (1) and (4) and
secure them with retaining pins.
4-26
Connection on the left side
• Swing the lattice extension in front of the main boom
head, until the bearing points (1) and (2) are in
alignment.
• Remove the retaining pins from the pins in the holders
(5)
• First, insert the pin (3) in the upper bearing point (1).
• Then insert the long pin (4) into the bottom bearing point
(2). If the bearing points do not align, you can take the
weight off the bearing points.
• Use retaining pins to secure the pins in the bearing
points.
Connections remove
Secure the lattice extension with a guide rope before
removing any connections.
Connections on the left side
• Remove the retaining pins from pins in the bearing
points.
• First hammer the pin out of the lower bearing point. If the
pin cannot be hammered out, you can unload it.
• You may then hammer the pin out of the upper bearing
point.
RT890E