PREVENTATIVE MAINTENANCE
CD5515-2/YB5515-2 SERVICE MANUAL
5-34
Published 1-20-2017, Control# 483-02
crane parts may become corroded even though other
parts remain dry; or
•
in high humidity, or when temperatures are just above
the freezing point.
Cleaning Procedures
To help pro tec t ag ain st corros io n of Grov e c rane s,
Manitowoc Crane Care recommends washing the crane at
least monthly to remove all foreign matter. More frequent
clea ning s may b e nee de d wh en op era ting in h ars h
environmental conditions. To clean the crane, follow these
guidelines:
•
High pressure water or steam is effective for cleaning
the crane's undercarriage and wheel housings. Keeping
these areas clean will not only help retard the effects of
corrosion, but will also improve the ability to identify
potential issues before they grow into larger problems.
•
Rinse the dirt and dust off before washing the crane. Dirt
can scratch the crane's finish during washing/cleaning.
•
Hard to clean spots caused by road tar or bugs should
be treated and cleaned after rinsing and prior to
washing. Do not use solvents or gasoline.
•
Wash using only soaps and detergents recommended
for automotive paint finishes.
•
Rinse all surfaces thoroughly to prevent streaking
caused by soap residue.
•
Allow the crane to dry thoroughly. You can accelerate
drying by using compressed air to remove excess water.
NOTE:
Polishing and waxing (using an automotive-type
wax) is recommended to maintain the original paint
finish.
Inspection and Repair
•
Immediately following cleaning, Manitowoc Crane Care
recommends an inspection to detect areas that may
have become damaged by stone chips or minor
mishaps. A minor scratch (one that has not penetrated
to the s ubstrate surfac e) can be buffed with an
automotive-type scratch remover. It is recommended
that a good coat of automotive wax be applied to this
area afterwards.
•
All identified spots and/or areas that have been
scratched through to the metal should be touched up
and repaired as soon as possible to prevent flash
rusting. To repair a major scratch (down to bare metal) or
minor damage, follow these procedures:
NOTE:
Manitowoc Crane Care recommends that a
qualified body repairman prepare, prime and paint
any major scratch(es) or minor damage.
For scratches and marks in highly visible areas:
•
Sand to remove the scratch and feather outward from
the mark to blend the repair into the original surface.
Body putty may be applied as necessary to hide the
defect; then sand smooth.
•
Cover all bare metal with a primer that is compatible with
the original paint finish and allow to dry thoroughly.
•
Prepare the surface prior to applying the finish coat of
paint.
•
Apply a finish coat of paint using accepted blending
techniques. Use of original paint colors is recommended
to insure the best color match possible.
For scratches and marks in areas of low visibility:
•
Consider touching up the spots with a brush technique
to cover the bare metal. This will retard the effects of
corrosion and enable you to do the repair at a later time
during a normal maintenance interval.
Spots should be touched up with quality paint. Primers tend
to be porous; using a single coat of primer only will allow air
and water to penetrate the repair over time.
Application
Depending upon the environment in which a crane is used
and/or stored, the initial factory application of Carwell T32-
CP-90 should help inhibit corrosion for up to approximately
12 months.
It is recommended that the treatment be periodically
reapplied by the crane owner after that time to help continue
to protect against corrosion of the crane and its components.
Howe v er, if a cr an e is u s ed an d/ o r st o re d in ha rs h
environments (such as islands, coastal regions, industrial
areas, areas where winter road salt is regularly used, etc.),
reapplication of treatment is recommended sooner than 12
months, e.g., repeat treatment in 6-9 months.
CAUTION
High pressure water can be forced into spaces and
infiltrate beyond seals. Avoid pressure washing in the
vicinity of electrical controls, panels, wiring, sensors,
hydraulic hoses and fittings, or anything that can be
damaged by high pressure cleaning/spraying.
CAUTION
To the extent any damage is structural in nature,
Manitowoc Crane Care must be contacted and consulted
as to what repairs may be required.
Reference Only
