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TM 10-4320-307-10
SECTION III. MAINTENANCE PROCEDURES
3-4
INTRODUCTION.
a.
This section contains maintenance procedures that are the responsibility of the operator.
b.
Operator maintenance is performed by operating personnel before, during, and after pump
operation. These activities are limited to replenishment of lubricating oil and engine fuel,
inspection
of visible operating components, cleaning, and correction of minor deficiencies requiring only
simple,
readily available tools.
3-5
LUBRICATION. Notify unit maintenance if lubrication is required.
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CLEANING.
a.
General. The following cleaning instructions apply to all components of the pumping assembly.
Special cleaning instructions required for inspection or repair of a particular part are included as
cleaning procedures for that part.
WARNING
Cleaning solvent is flammable and potentially dangerous to people and
property. Do not use near open flame, sparks, excessive heat, or on hot
surfaces. Flash point of P-D-680 solvent is 100° to 138°F (38° to 59°C). Use
solvent in a well-ventilated area, and avoid inhaling fumes. If repeatedly
exposed to fumes, seek fresh air and immediate medical help. Avoid
prolonged exposure of skin to solvent. Wash exposed skin immediately and
thoroughly.
CAUTION
Nonmetallic parts fabricated from rubber, plastic, fabric, and other organic
materials cannot be haphazardly cleaned with solvent. Solvent will
deteriorate some parts containing organic materials sufficiently to render
further use of such parts undesirable. Where solvent cleaning is
recommended for such parts, application must be brief, and solvent must
not be allowed to remain on the surface.
b.
Cleaning Processes and Materials. Cleaning procedures for parts of this equipment are relatively
simple and a high degree of surface cleanliness is not required for most parts. The usual process specified is
hand cleaning in solvent. The solvent required is a neutral clear petroleum distillate, free of undissolved water
and other matter, and known commonly as dry cleaning solvent (P-D-680). Check the solvent periodically for
dirt, and replace the solvent whenever contamination causes unsatisfactory cleaning or reaches two percent by
volume of the solvent. Parts for which solvent cleaning is not recommended are usually wiped clean with a
cloth or washed with a solution of mild soap and water. Immediately after any cleaning process employing a
liquid, parts must be thoroughly dried to prevent corrosive action by residual cleaning liquid. Dry the parts with
filtered, oil-free, moisture-free, compressed air.
c.
Standard Cleaning Procedures. The following standard procedures are to be followed in cleaning
similar parts in the equipment.
WARNING
Use approved personnel protective equipment to protect eyes and face when using compressed air for
cleaning, cooling, or drying. Do not direct airstream toward yourself or toward another person.
Maximum allowable air pressure is 30 psi.
(1)
Small Metal Parts. Clean small metal parts by placing them in a fine mesh wire basket and
immersing and agitating them in solvent for at least 1 minute. If excessively dirty parts resist
cleaning by immersion, brush with a stiff bristle brush in solvent. Remove basket from
solvent, drain off excess solvent, and blow dry with compressed air.
(2)
Large Metal Parts. Clean large metal parts by wiping with solvent-saturated cloths and, if
necessary, scrubbing with a stiff bristle brush. Clean parts that are exceptionally dirty by
emulsion soak or emulsion spray methods. Dry parts by blowing with compressed air.
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