National Crane 600H, Руководство по обслуживанию

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LUBRICATION 600H SERVICE MANUAL
8-10
08-19-2022 Control # 092-13
applied as p art of a maintena nce p rogram s hall be
compatible with the original lubricant, and to this end, the
rope manufacturer should be consulted. Lubricant applied
shall be of the type which does not hinder visual inspection.
Those sections of rope which are located over sheaves or
otherwise hidden during inspection and maintenance
procedures require special attention when lubricating rope.
The object of rope lubrication is to reduce internal friction and
to prevent corrosion.
During fabrication, ropes receive lubrication; the kind and
amount depends on the rope’s size, type, and anticipated
use. This in-process treatment will provide the finished rope
with ample protection for a reasonable time if it is stored
under proper conditions. But, when the rope is put into
service, the initial lubrication may be less than needed for the
full useful life of the rope. Because of this possibility, periodic
applications of a suitable rope lubricant are necessary.
The following are important characteristics of a good wire
rope lubricant:
1. It should be free from acids and alkalis.
2. It should have sufficient adhesive strength to remain on
the ropes.
3. It should be of a viscosity capable of penetrating the
interstices between wires and strands.
4. It should not be soluble in the medium surrounding it
under the actual operating conditions (i.e. Water).
5. It should have a high film strength.
6. It should resist oxidation.
Before applying lubrication, accumulations of dirt or other
abrasive material should be removed from the rope.
Cleaning can be accomplished by using a stiff wire brush and
solvent, compressed air, or live steam. Immediately after the
wire rope is cleaned, it should be lubricated. Many
techniques may be used; bath, dripping, pouring, swabbing,
painting, pressure spray.
Whenever possible, the lubricant should be applied at the
top of a bend in the rope, because at that point the strands
are spread by bending and are more easily penetrated.
There should be no load on the rope while it is being
lubricated. It should be noted, the service life of wire rope will
be directly proportional to the effectiveness of the method
used and amount of lubricant reaching the working parts of
the rope.
CARWELL
©
RUST INHIBITOR
Protecting Cranes From Corrosion
National Cranes are manufactured to high quality standards,
including the type of paint finish demanded by today's
industry. In partnership with our paint supplier, we are also
doing our part to help prevent premature corrosion of cranes.
National Cranes will be treated with a rust inhibitor called
Carwell T32-CP-90. While a rust inhibitor cannot guarantee
that a machine will never rust, this product will help protect
against corrosion on National Cranes that are treated with
this product.
Carwell T32-CP-90 is a treatment, not a coating. It contains
no silicones, solvents, CFCs or anything that would be
classified as hazardous under OSHA Regulation 29CFR 19-
10.1200. The product is a liquid blend of petroleum
derivatives, rust inhibitors, water-repelling and water-
displacing agents. Special equipment is used to spray a light
film onto the entire undercarriage and various other areas of
each new crane prior to shipment. When applied the product
has a red tint to allow applicators to view coverage during
application. This red tint will turn clear on its own within
approximately 24 hours after application.
FIGURE 8-6
REFERENCE ONLY