Manitowoc GROVE RT890E Operator's Manual page 73

RT890E
8. If necessary, remove hose drum connection for
hydraulic supply.
Checklist: Rigging the 33 Ft (10.1 m)
Swingaway Lattice Extension
1. Prepare the crane for rigging the swingaway lattice
extension.
2. If necessary, connect the hose drum for hydraulic
supply.
3. Check if the lattice extension was unrigged properly and
is in transport condition.
4. Folding out the run-up rail.
NOTE: If only the 33 ft (10.1 m) section is folded at the side
of the main boom - proceed from point 7.
5. Move the connection in the middle area on 33 ft (10.1 m)
section.
6. Release connection at the pivot point between 33 ft
(10.1 m) section and 23 ft (7 m) section.
7. If only the 33 ft (10.1 m) section is folded at the side of
the main boom, remove connection between 33 ft (10.1
m) section and main boom (rear).
SET-UP AND INSTALLATION
8. Establish electrical connection between the lattice
extension and the main boom.
9. Establish hydraulic electrical connection between the
lattice extension and the main boom.
10. Swing 33 ft (10.1 m) section onto the main boom head.
11. Fasten 33 ft (10.1 m) section onto the main boom head
with pins on right-hand side.
12. Secure the lattice extension on the main boom with
guide rope.
13. Release the connection in the front area. If necessary,
press down the slewing axle mechanically.
14. Swing the 33 ft (10.1 m) section in front of the main
boom head.
15. Pin the 33 ft (10.1 m) section in front of the main boom
head on the left-hand side.
16. Fold out both deflection sheaves on the 33 ft (10.1 m)
section if offset angle is 20° or 40°.
17. Place the hoist cable over both deflection sheaves and
head sheave of the 33 ft (10.1 m) section if angle is 20°
or 40° offset.
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