TM 5-5420-280-23&P
0017 00
GENERAL MAINTENANCE PROCEDURES (Contd)
CLEANING (Contd)
d. Castings.
(1) Clean inner and outer surfaces of castings and all areas subject to grease and fluid with cleaning
solvent.
(2) Use a stiff brush to remove sludge and gum deposits.
WARNING
Compressed air source will not exceed 30 psi (207 kPa). When
cleaning with compressed air, eyeshields must be worn. Failure to
comply may result in injury to personnel.
(3) Use compressed air to blow out all tapped screw holes and to dry castings after cleaning.
e. Fluid Passages. Particular attention must be given to all fluid passages in castings and
machined parts. Fluid passages must be clean and free of any obstructions.
(1) Clean passages with wire probes to break up any sludge or gum deposits.
(2) Wash passages by flushing with solvents.
WARNING
Compressed air source will not exceed 30 psi (207 kPa). When
cleaning with compressed air, eyeshields must be worn. Failure to
comply will result in injury to personnel.
(3) Dry passages with compressed air.
f. Seals and Flexible Hoses.
CAUTION
Do not allow cleaning solvent to come in contact with seals or
flexible hoses. Failure to comply will result in damage to parts.
Clean with soap and water.
g. Bearings.
(1) Bearings require special cleaning. After removing surface grease and gum deposits, wipe bearings
dry; do not use compressed air. After cleaning, coat bearings with grease, wrap,
and hold for inspection.
(2) Refer to TM 9-214 for more information on care of bearings.
h. Machine Tooled Parts. Clean with cleaning solvent and dry with compressed air.
i. Machined Surfaces. Clean with cleaning solvent and dry with clean cloth.
j. Mated Surfaces.
WARNING
Eyeshields must be worn when cleaning with a wire brush. Flying
rust and metal particles may result in injury to personnel.
Remove old gasket and/or sealing compound using wire brush and cleaning solvent.
k. Rusted Surfaces.
NOTE
All parts subject to rusting must be lightly oiled and wrapped prior
to storage.
Clean all rusted surfaces using wire brush and emery cloth.
l. Externally Exposed Parts. Wash with soap and water. Rinse thoroughly and air dry.
Change 1
0017 00-2
