![Manitowoc Grove GRT8120 Скачать руководство пользователя страница 54](http://html.mh-extra.com/html/manitowoc/grove-grt8120/grove-grt8120_operators-manual_701202054.webp)
SAFETY INFORMATION
GRT8120 OPERATOR MANUAL
2-30
Published 3-22-2021, Control # 702-02
HOIST ROPE
Synthetic Hoist Rope
For detailed information concerning synthetic hoist rope,
refer to K100™ Synthetic Crane Hoist Line Manual P/
N 9828100734 available by contacting Manitowoc
Crane Care.
During installation and setup, care must be taken to avoid
overlap and crossing of wire rope and synthetic hoist ropes.
Always make daily inspections of the hoist rope, keeping in
mind that all hoist rope will eventually deteriorate to a point
where it is no longer usable. Refuse to work with worn or
damaged hoist rope.
During regular inspections, operator shall make sure that
crane surfaces such as wear pads, sheaves, etc have not
been damaged in a manner that can then damage the
synthetic hoist rope.
NOTE:
Example; if usage of a wire rope has cut grooves
with sharp edges in a wear pad, they need to be
addressed before the synthetic hoist rope is used
in that same position.
Use
only
the hoist rope specified by Grove as indicated on
the crane’s
Load Chart
. Substitution of an alternate hoist
rope may require the use of a different permissible line pull
and, therefore, require different reeving.
NOTE:
Hoist rope may be purchased by contacting
Manitowoc Crane Care.
Wire Rope
Always make daily inspections of the rope, keeping in mind
that all wire rope will eventually deteriorate to a point where it
is no longer usable. Refuse to work with worn or damaged
wire rope. Rope shall be taken out of service when any of the
following conditions exist:
•
For rotation-resistant running ropes: more than two (2)
broken wires in a length of rope equal to six (6) times the
rope diameter, or more than four (4) broken wires in a
length of rope equal to thirty (30) times the rope
diameter.
•
For running ropes other than rotation resistant: six (6)
broken wires in one rope lay or three (3) broken wires in
one strand.
•
One valley break where the wire fractures between
strands in a running rope is cause for removal.
•
Abrasion of the rope resulting in a 5% reduction in the
original wire diameter.
•
Any kinking, bird caging, crushing, corrosion, or other
damage resulting in distortion of the rope structure.
•
Rope that has been in contact with a live power line or
has been used as a ground in an electric circuit (e.g.,
welding) may have wires that are fused or annealed and
must be removed from service.
•
In standing ropes, more than three (3) breaks in one
rope lay in sections beyond the end connection or more
than two (2) broken wires at an end connection.
•
Core deterioration, usually observed as a rapid
reduction in rope diameter, is cause for immediate
removal of the rope.
The following is a brief outline of the basic information
required to safely use wire rope.
•
Wire ropes wear out. The strength of a rope begins to
decrease when the rope is put to use and continues to
decrease with each use. Rope will fail if worn-out,
o ve r lo a de d , m is u s ed , d a m a g ed or i m pr op e r l y
maintained.
•
The nominal strength, sometimes called catalog
strength, of a wire rope applies only to a new,
unused rope.
•
The nominal strength of a rope should be considered the
straight line pull which will actually break a new unused
rope. The nominal strength of a rope should never be
used as its working load.
•
Each type of fitting attached to a rope has a specific
efficiency rating which can reduce the working load of
the rope assembly or rope system.
•
If an operator hoists the hook block up or down too fast
when reeved with multiple parts of line and no hook load,
the wire rope can bird cage and damage the rope.
•
Never overload a rope. This means never use the rope
where the load applied to it is greater than the working
load determined by the rope manufacturer.
•
Never “shock load” a rope. A sudden application of force
or load can cause both visible external and internal
damage. There is no practical way to estimate the force
applied by shock loading a rope. The sudden release of
a load can also damage a rope.
•
Lubricant is applied to the wires and strands of a wire
rope when it is manufactured. The lubricant is depleted
when the rope is in service and should be replaced
periodically. Refer to the
Service Manual
for more
information.
•
In the U.S.A., regular inspections of the rope and
keeping of permanent records signed by a qualified
person are required by OSHA for almost every wire rope
application. The purpose of the inspection is to
determine whether or not a rope may continue to be
safely used on the application. Inspection criteria,
including number and location of broken wires, wear and
elongation, have been established by OSHA, ANSI,
Содержание Grove GRT8120
Страница 1: ...Operator Manual Grove GRT8120 ...
Страница 4: ...THIS PAGE BLANK ...
Страница 16: ...TABLE OF CONTENTS GRT8120 A 12 THIS PAGE BLANK ...
Страница 24: ...INTRODUCTION GRT8120 OPERATOR MANUAL 1 8 Published 3 22 2021 Control 702 02 THIS PAGE BLANK ...
Страница 74: ...SAFETY INFORMATION GRT8120 OPERATOR MANUAL 2 50 Published 3 22 2021 Control 702 02 THIS PAGE BLANK ...
Страница 182: ...OPERATING PROCEDURES GRT8120 OPERATOR MANUAL 4 52 Published 3 22 2021 Control 702 02 FIGURE 4 54 ...
Страница 184: ...OPERATING PROCEDURES GRT8120 OPERATOR MANUAL 4 54 Published 3 22 2021 Control 702 02 FIGURE 4 55 1a 1b 1c 1d 1e 1f ...
Страница 186: ...OPERATING PROCEDURES GRT8120 OPERATOR MANUAL 4 56 Published 3 22 2021 Control 702 02 FIGURE 4 56 1a 1b 1c 1d 1e 1f 1g ...
Страница 188: ...OPERATING PROCEDURES GRT8120 OPERATOR MANUAL 4 58 Published 3 22 2021 Control 702 02 FIGURE 4 57 ...
Страница 190: ...OPERATING PROCEDURES GRT8120 OPERATOR MANUAL 4 60 Published 3 22 2021 Control 702 02 FIGURE 4 58 ...
Страница 221: ...Grove Published 3 22 2021 Control 702 02 4 91 GRT8120 OPERATOR MANUAL OPERATING PROCEDURES 4 THIS PAGE BLANK ...
Страница 378: ...5 70 Published 3 22 2021 Control 702 02 SET UP AND INSTALLATION GRT8120 OPERATOR MANUAL THIS PAGE BLANK ...
Страница 440: ...GRT8120 OPERATOR MANUAL A 10 Published 3 22 2021 Control 702 02 THIS PAGE BLANK ...
Страница 447: ......
Страница 448: ......