SAFETY INFORMATION
5540F/YB5515 OPERATOR’S MANUAL
2-14
Published 10-21-2011, Control # 055-03
intervals, and types. Lubricate at more frequent intervals
when working under severe conditions.
Exercise care when servicing the hydraulic system of the
crane, as pressurized hydraulic oil can cause serious injury.
The following precautions must be taken when servicing the
hydraulic system:
•
Follow the manufacturer’s recommendations when
adding oil to the system. Mixing the wrong fluids could
destroy seals, causing component failure.
•
Be certain all lines, components, and fittings are tight
before resuming operation.
Tires
Inspect the tires for nicks, cuts, embedded material, and
abnormal wear.
Ensure all lug nuts are properly torqued.
Ensure pneumatic tires are inflated to the proper pressure
(refer to the
Load Chart
). When inflating tires, use a tire
gauge, clip-on inflator, and extension hose which will permit
standing clear of the tire while inflating.
Wire Rope
Use
only
the wire rope specified by Manitowoc as indicated
on the crane’s
Load Chart
. Substitution of an alternate wire
rope may require the use of a different permissible line pull
and, therefore, require different reeving.
NOTE:
Wire rope may be purchased by contacting
Manitowoc Crane Care.
Always make daily inspections of the wire 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. Wire 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 wear of the individual
outside wires of 1/3 of 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 (eg.
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 wire rope begins
to decrease when the rope is put to use and continues to
decrease with each use. Wire rope will fail if worn-out,
o v e r l o a d e d , m i s u s e d , d a m a g e d o r i m p r o p 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 wire rope should be
considered the straight line pull which will actually break
a new unused rope. The nominal strength of a wire rope
should never be used as its working load.
•
Each type of fitting attached to a wire rope has a specific
efficiency rating which can reduce the working load of
the wire rope assembly or rope system.
•
Never overload a wire rope. This means never use the
wire rope where the load applied to it is greater than the
working load determined by the rope manufacturer.
•
Never “shock load” a wire 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 wire 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
WARNING
Possible equipment damage and/or
personal injury!
Driving the crane with a tire and split-rim assembly under
inflated at 80% or less of its recommended pressure can
cause the wheel and/or tire to fail. Per OSHA Standard
1910.177(f)(2), when a tire has been driven under inflated
at 80% or less of its recommended pressure, it must first
b e c o m p l e t e l y d e f l a t e d , r e m o v e d f r o m t h e a x l e ,
disassembled, and inspected before re-inflation.
Reference Only
