Manitowoc 14000 User Manual

Reference Only
Manitowoc Published 03-29-17, Control # 064-23 v2 4-89
14000 OPERATOR MANUAL SETUP AND INSTALLATION
4
Lower Boom Point Assembly
See Figure 4-40 for the following procedures.
General
Standard Lower boom point (1) is equipped with seven
sheaves in three clusters (2, 3, and 4).
Each sheave cluster is retained on a separate shaft (6) with a
spanner nut (7). The sheave clusters are supported by
saddles (8) in the boom top and retained with bolt (9) and
elastic stop nut (11).
Sheave clusters (3 and 4) must be removed before the crane
can be operated with some boom lengths or some boom and
luffing jib lengths. See Capacity Chart or Luffing Jib Raising
Procedure Chart to determine which boom lengths require
removal of the sheave clusters.
Sheave cluster (3) weighs 460 lb (209 kg).
NOTE: For luffing jib operation with the lower boom point
removed, bolt (9, Figure 4-39) and all spacers (12)
must also be removed.
Removing and Installing Sheave Clusters
When required, perform the following steps:
• when it is necessary to move the dead-end link, or
• prior to lengthening the boom to a length that requires
sheave clusters (3 and 4) to be removed
1. Lower boom so that sheaves touch ground or blocking.
NOTE: Centerline of saddles (8) are tilted 15° upwards
when boom is horizontal to ground.
2. Remove rope guard (5).
3. Remove elastic stop nut (11), washer (10) and bolt (9).
4. If sheave clusters (3 and 4) are being removed, proceed
as follows:
a. Pull sheave clusters out of lower boom point.
b. Store sheave clusters (3 and 4). Sheave cluster (2)
must be installed in middle of lower boom point.
c. Install a spacer (12) on both sides of lower boom
point.
d. Install an equal thickness of shims (13) on both
ends of both spacers (12) to limit side play to 1/32 in
(0,76).
5. Install required number of sheave clusters in saddles in
lower boom point.
If only one cluster is used, install sheave cluster (2) in
middle of lower boom point.
If all three sheave clusters are used, install sheave
cluster with dead-end link in proper position as shown in
Load Line Reeving instructions on Page 107
.
6. Install an equal thickness of shims (13) on both ends of
each sheave cluster (2, 3, and 4) to limit side play to 1/32
in (0,76 mm).
7. Install bolt (9) with flat washers (10) and securely tighten
elastic stop nut (11).
8. Install rope guard (5).
Greasing Sheave Bearings
Carefully hand pack each sheave bearing with MOBILUX EP
#2 grease when a sheave assembly is overhauled.
Be sure to also fill cavities between bearing and seals with
grease.
Adjusting Bearing Side Play
Perform the following steps when assembling a sheave
cluster:
1. Assemble required number of sheaves (14), dead-end
link (15), and spacer (16) on shaft (8).
2. Clean threads of shaft (6) and spanner nut (7) with
solvent.
3. Apply LOCTITE #243 or equivalent thread locking
adhesive to threads of shaft.
4. Install spanner nut (7) and tighten to approximately 75 ft-
lb (102 Nm) to remove all bearing side play.
WARNING
Tipping Crane Hazard!
Do not attempt to raise boom until sheave clusters (3 and
4) have been removed for boom lengths specified in
Capacity Chart or Luffing Jib Raising Procedure Chart.
Crane will tip if this step is not performed.

Manitowoc 14000 Specifications

General

Brand	Manitowoc
Model	14000
Category	Construction Equipment
Language	English