LUBRICATION PROCEDURE AND CHARTS OPERATOR MANUAL 500E2
5-10 Published 07-26-2019 Control # 111-06
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 to include:
• 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
®
is a treatment, not a coating. It contains no
silicones, solvents, CFCs or anything that would be classified
as hazardous under OSHA Regulation 29 CFR 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.
Once applied, Carwell T32-CP-90 can appear to leave a
slightly “oily” residue on painted surfaces and until the red
tinting fades could initially be mistaken for a hydraulic oil
leak. While the product is not harmful to painted surfaces,
glass, plastic or rubber, it must be removed using standard
steam-cleaning techniques.
Carwell works in various ways: (1) it eliminates the moisture
containing salt, dirt and other pollutants by lifting and
removing them from the metal surface; (2) the film creates a
barrier to repel further moisture from coming in contact with
the metal; and (3) it penetrates crevices.
In addition to the factory-applied Carwell coating, National
Crane owners must provide proper maintenance and care to
help ensure long-term protection of their crane against
corrosion. This procedure provides information and
guidelines to help maintain the paint finish on National
Cranes.
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