NAVFAC P-300 Management of Transportation Equipment

3. Corrosion Control
a. Corrosion Conditions. Civil Engineer Support Equipment (CESE) is
assigned to many locations where atmospheric and environmental conditions can
cause severe corrosion and a reduction in equipment life. Corrosion can be slowed by
proper cleaning and the correct application and maintenance of protective coatings
such as paint, undercoating, and preservatives. Body corrosion occurs primarily where
poor ventilation caused by clogged drain holes or accumulations of mud and sand allow
moisture to remain on unprotected metal surfaces.
(1) Rustproofing. All automotive CESE shall be core treated. Only
material that meets U.S. Government Specification MIL-C-0083933A (MR), Corrosion
Preventive, Rustproofing, Undercarriage shall be used. Appendix m lists all commercial
products that meet this specification. Proper application and preparation of the areas
to be coated or recoated is necessary. Surfaces shall be reasonably clean, dry, and
free from excessive rust, oil, grease, dust, road tar, and other foreign matter. Core
treatment of a vehicle shall be inspected during each preventive maintenance (PM)
service; one scratch through the preservative can cause corrosion to start beneath the
rustproofing.
(2) Other Preservatives. Appendix M identifies and describes the
different preservative compounds applicable on CESE. Additional information can be
obtained from NAVFAC P-434, Construction Equipment Department Management and
Operations Manual.
b. Equipment Cycling. Equipment not used regularly must be cycled and
exercised to protect it from deterioration. Cycling is "an operation or series of
operations that recur regularly and, when completed, constitute one complete
performance," which means that all parts of an item of equipment have been operated
at their rated capacity for their intended use. Vehicles shall be road-tested under a
load through their full gear range; generators shall be operated under rated load.
Starting and running an engine cycles the engine but not the vehicle.
c. Live Storage. Equipment subject to long periods of nonutilization (a
period of two PM cycles) absorbs maintenance man-hours, invites improper use, and
often suffers excess deterioration. Such equipment, other than cranes, may be placed
in live storage in accordance with the provisions set forth in Appendix N.
NOTE: All cranes must be maintained in an active status and cycled weekly.
d. Deadline Preservation. All deadline vehicles and equipment awaiting
repairs must be inspected, cycled, and preserved to prevent deterioration. Deadline
equipment shall be parked in a separate location that is easily accessible and
adequately drained. This location shall be out of the main traffic flow, but still highly
visible. Constant surveillance of the deadline reduces cannibalization. Deadline
equipment must not be removed from the PM schedule; in fact, it should be inspected
more often. Each time an item is inspected, it should be cycled as much as
mechanically possible; for example, if a dump truck is down for wheel seals, cycle the
engine and the hydraulic dump. Each inspection shall also ensure that all
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