Manitowoc GROVE RT890E Operator's Manual page 72

SET-UP AND INSTALLATION
1. If necessary, connect the hose drum for hydraulic
supply.
2. Check the transport condition of the (two-stage)
swingaway lattice extension.
3. Sling two-stage swingaway lattice extension on auxiliary
crane.
4. Lift (two-stage) swingaway lattice extension in front of
the main boom with the auxiliary crane and lock the 33 ft
(10.1 m) section to the right of the main boom head.
5. Establish hydraulic connection between the lattice
extension and the main boom.
6. Establish electrical connection between the lattice
extension and the main boom.
7. Attach the guide rope to the head of the 33 ft (10.1 m)
section.
NOTE: If the lattice extension needs to be rigged in front of
the main boom, proceed as from point 10.
8. If the lattice extension is to be folded up at the side of the
main boom, fold out run-up rail.
9. The other types of rigging work for folding up the lattice
extension at the side are described in the Check List:
Unrigging the 33 ft (10.1 m) swingaway lattice extension
as from point 12.
4-10
10. If the lattice extension needs to be rigged in front of the
main boom, attach guide ropes to the head of the 33 ft
(10.1 m) section.
The other types of rigging work for the 33 ft (10.1 m)
swingaway lattice extension are described in the Check
List: Rigging the 33 ft (10.1 m) swingaway lattice
extension as from point 14.
The other types of rigging work for the 56 ft (17.1 m) two-
stage swingaway lattice extension are described in the
Check List: Rigging the 56 ft (17.1 m) swingaway lattice
extension as from point 13.
Checklist: Removing the (Two-Stage)
Swingaway Lattice Extension
Prerequisites:
- The crane is on outriggers.
- An auxiliary crane is available.
1. Carry out all of the rigging work for a rigged 33 ft (10.1
m) swingaway lattice extension listed in the Check List:
Unrigging 33 ft (10.1 m) swingaway lattice extension up
to and including point 9 in this section.
2. Carry out all of the rigging work for a rigged 56 ft (17.1
m) two-stage swingaway lattice extension listed in the
Check List: Unrigging 56 ft (17.1 m) two-stage
swingaway lattice extension up to and including point
15.
3. Disconnect hydraulic connection between the lattice
extension and the main boom.
4. Disconnect electrical connection between the lattice
extension and the main boom.
5. Slinging (two-stage) swingaway lattice extension on
auxiliary crane.
6. Remove locking pins on both sides between 33 ft (10.1
m) section and main boom head and place (two-stage)
swingaway lattice extension onto separate vehicle using
auxiliary crane.
7. Check the transport condition of the (two-stage)
swingaway lattice extension.
RT890E