Manitowoc 777 User Manual

Reference Only
SET-UP AND INSTALLATION 777 OPERATOR’S MANUAL
4-70 Published 10-01-12, Control # 044-05
LOAD LINE REEVING
Reeving Diagrams
See Figure 4-48 for suggested reeving diagrams.
See Figure 4-46 for component identification and dead-end
locations in the boom and jib.
Wire Rope Specifications
See Wire Rope Specifications chart in operator’s cab for
following information:
• Parts of line required for various loads.
• Wire rope lengths and hoisting distance notes for
various parts of line.
• Maximum spooling capacity of load drums.
Wire Rope Installation
See Wire Rope Installation and Maintenance in this section
for following instructions:
• Anchoring wire rope to drums.
• Installing wire rope on drums.
• Anchoring wire rope to wedge sockets.
Guide Sheave Identification
See Figure 4-47 for identification of the wire rope guide
sheaves on the boom.
Sheaves must be positioned at indicated dimensions to
ensure proper fleet angles.
Load Pin Sheaves
The wire rope from the load drums must be routed through
the load pin sheaves as shown in the diagrams in
Figure 4-46. Failing to route wire rope properly will result in
faulty rated capacity indicator/limiter readings.
Universal Anchor Joint
A universal anchor joint (Figure 4-46) is available for the
#134 jib to provide a dead-end location for 2-part reeving
from the jib point.
See Universal Anchor Joint in this section for a complete
description of the universal anchor joint and for safety
information.
Load Blocks
Two different size load blocks are available from Manitowoc:
• 15 USt (13.6 t) hook and weight ball.
• 30 USt (27 t) with one sheave. This is the same block
used for self-erecting. It can be used for 2-part reeving
from the jib point (dead end at universal anchor joint in
jib top).
• 60 USt (54 t) with two sheaves.
• 175 USt (158.8 t) with six sheaves.
CAUTION
Wire Rope Damage!
Avoid wire rope damage from improper fleet angle or
contact with adjacent parts. Do not hoist load block or
hook and weight ball any closer to boom or jib points than
specified on Range Diagram (see Capacities Section of
Capacities Chart Manual).
WARNING!
Falling Load Hazard!
Avoid damage to wire rope or wire rope guide. Route wire
rope from load drums over top of proper sheaves in wire
rope guides as shown in Figure 4-47. Failing to route wire
rope as shown can cause wire rope to break and load to
fall.
WARNING!
Falling Load Hazard!
Load block capacity must be equal to or greater than
weight of load to be handled. Load block can fail if
overloaded, allowing load to fall.

Manitowoc 777 Specifications

General

Brand	Manitowoc
Model	777
Category	Construction Equipment
Language	English