Manitowoc MLC165-1 User Manual

Manitowoc Published 08-06-19, Control # 237-09_v2 4-99
MLC165-1 OPERATOR MANUAL SETUP AND INSTALLATION
4
Remove or Install Lower Boom Point Sheave Clusters
Removing or installing a lower boom point sheave cluster
(Figure 4-72
) is necessary to move the dead-end link or prior
to lengthening the boom to a length that requires sheaves to
be removed.
The sheave arrangements are shown in Figure 4-71
.
1. Block the sheaves to take the weight off the center bolt
(8).
2. Remove the rope guard (6).
3. Remove the lock nut (1), washer (2) and center bolt (8).
4. Using appropriate lifting equipment, pull the sheave
clusters (4) and dead end (5), as required, out of their
saddles in the lower boom point.
The sheave clusters weigh approximately 518 lb (235
kg).
5. Install an equal thickness of shims (3) into the saddles
(9) on both ends of each sheave cluster and dead-end,
as applicable.
6. Check that the side-play of each sheave cluster and
dead-end is no greater than 1/32 in (0,8 mm). If needed,
add another shim on each end.
7. Install the center bolt with flat washers and securely
tighten the lock nut.
8. Install the rope guard (6).
Figure 4-72
8
2
1
4
7
6
7
M100947
9
3
5
Item Description Item Description
1 Lock Nut 6 Rope Guard
2 Washer 7 Cotter Pin
3 Shim (16 ga. or 22 ga.) 8 Center Bolt (short or long)
4 Sheave Clusters 9 Saddles
5 Dead End
WARNING
Crane Tipping Hazard!
To raise some boom and jib lengths, the two outer lower
boom point sheave clusters shall be removed. The crane
will tip if this is not done.
Refer to the appropriate Liftcrane Boom or Jib Capacity
Chart to determine the lower boom point sheave
requirements and deducts.

Manitowoc MLC165-1 Specifications

General

Brand	Manitowoc
Model	MLC165-1
Category	Construction Equipment
Language	English