Manitowoc Grove GRT880, Operator'S Manual

Page: 195 / 202

Grove
Published 3-25-2020, Control # 643-04
5-29
GRT880 OPERATOR MANUAL MAINTENANCE AND LUBRICATION
5
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 substrate surface) 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.
• Any area scratched through to bare 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 a qualified
body repair technician prepare, prime, and paint
any major scratch(es) or minor damage.
For scratches and marks in highly visible areas:
1. Sand to remove scratch. Feather outward from the mark
to blend repair into the original surface. Apply body putty
as necessary to hide the defect; then sand smooth.
2. Cover all bare metal with a primer compatible with the
original paint finish and allow to dry thoroughly.
3. Prepare surface before applying finish coat of paint.
4. Apply a finish coat using accepted blending techniques.
Use of original paint colors is recommended to ensure
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 effects of
corrosion and enable you to do the repair later 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 on the environment in which a crane is used and/
or stored, initial factory application of Carwell
®
T32 (CP-90)
should help inhibit corrosion approximately 12 months.
It is recommended 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.
However, if a crane is used and/or stored in harsh
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 3rd Wrap months, e.g., repeat treatment in 6-9 months.
• Do not apply to recently primered and painted areas for
at least 48 hours after paint is properly dried and cured.
For minor touch up areas a 24 hour period is needed for
cure time before applying treatment.
NOTE: Unit must be completely dry before applying
treatment.
• Do not allow product to puddle or build-up on weather
stripping, rubber gaskets, etc. Unit should not have
puddles or runs evident anywhere.
• To ensure proper coverage, product needs to be fogged
on the unit.
• Use of pressure pots to apply treatment is
recommended.
• Carwell
®
treatment is available in 16 ounce spray
bottles from Manitowoc Crane Care (order part number
8898904099).
• After treatment application is complete, wash or clean
film residue from lights, windshield, grab handles,
ladders/steps and all access areas to crane, as
necessary.
Contact Manitowoc Crane Care should you have any
questions.
Areas of Application
Refer to (Figure 5-17) and (Figure 5-18).
• Underside of unit will have full coverage of the rust
inhibitor. These are the only areas that a full coat of rust
inhibitor is acceptable on painted surfaces. Areas
include; Valves, hose end and fittings, Swivel, pumps,
axles, drive lines, transmission, slew ring fasteners and
all interior surfaces of the frame.
• Frame application areas are; hose ends and fittings, all
unpainted fasteners and hardware, all bare metal
surfaces, outrigger pads, and back up alarm hardware.
• Superstructure applications are; hose end and fittings,
wire rope on hoist roller tensioning springs on hoists, all
unpainted fasteners and hardware, valves, slew ring
fasteners and all bare metal surfaces.
• Boom applications areas are; pivot pins, hose end and
fittings, jib pins and shafts, all bare metal surfaces,
overhaul ball pins/ hook block pins and fasteners.
• All hardware, clips, pins, hose connections not painted
will have treatment applied.
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.