Manitowoc Published 10-01-12, Control # 044-05 4-1
777 OPERATOR’S MANUAL SET-UP AND INSTALLATION
4
SECTION 4
SET-UP AND INSTALLATION
RIGGING DRAWINGS
For boom and jib rigging drawings that apply to your crane,
see end of this section.
OPTIONAL ATTACHMENTS
If applicable, instructions for optional attachments that apply
to your crane, are located at the end of this section.
GENERAL SAFETY
To prevent accidents that can result in death or injury during
crane assembly and disassembly, comply with following
general safety information and with specific safety
information contained in assembly and disassembly steps.
CRANE ORIENTATION
The terms RIGHT, LEFT, FRONT, REAR used in this section
see the operator’s right, left, front, and rear sides when
seated in the operator’s cab looking forward with the crawler
motors to the rear.
SELF-ERECTING EQUIPMENT
The Model 777 is a self-erecting crane equipped with the
following components for assembly and disassembly:
• Carbody jacks with pads for lifting the crane onto and off
the trailer. The jacks are controlled by handles located
on the front of the carbody.
• Hydraulically actuated pins for connecting and
disconnecting the crawlers to and from the carbody.
These pins are controlled by handles located on the
front of the carbody.
• Boom butt and wire rope guide which can be used as a
boom to handle the crane’s crawlers, counterweights,
and boom sections.
WARNING
Avoid Death or Serious injury!
Read and understand setup and installation instructions in
this section before attempting to assemble or
disassemble crane.
WARNING
Tipping/Overload Hazard!
Avoid tipping crane over or collapsing mast:
• Assemble and disassemble crane on a firm, level,
uniformly supporting surface.
• Do not exceed swing limits and mast lifting capacities
given in Table 4-1.
• Keep crane level when operating carbody jacks.
WARNING
Avoid Falling Off Crane and Boom!
It is necessary to climb onto crane and boom during
assembly and disassembly steps.
Use sturdy owner furnished ladders or an approved
personnel hoist to gain access to areas which cannot be
reached from ladders or steps provided with crane.
WARNING
Moving Parts/Pinch Points!
Avoid death or crushing injury during crane assembly and
disassembly:
• Assembly personnel — take every precaution to
prevent injury when working near moving parts.
• Maintain communication between operator and
assemblers to avoid accidents.
• Do not raise or lower gantry and mast until all
personnel are off crane.
Keep unauthorized personnel well clear of crane.
WARNING
Falling Load Hazard!
To prevent lifting equipment from failing and load from
dropping, crane owner/user shall verify following prior to
each lift:
• All lifting equipment (shackles, hooks, slings, blocks)
have been properly maintained and are safe for use.
• All lifting equipment has a capacity equal to or greater
than load to be lifted.
To Next Page
Loading...
Need help?
General
