TM 5-3805-255-14
0019
CLEANING INSTRUCTIONS CONTINUED
5. Castings.
a. Clean inner and outer surfaces of castings and all areas subject to grease and oil with solvent cleaning
compound.
b. Use a stiff brush to remove sludge and gum deposits.
c.
Clear out all tapped (threaded) holes with compressed air to remove dirt and cleaning solvent.
6. Oil Passages. Particular attention must be given to all oil passages in castings and machined parts. Oil
passages must be clean and free of any obstructions.
a. Clean passages with wire probes to break up any sludge or gum deposits.
b. Wash passages by flushing with solvent cleaning compound.
c.
Dry passages with compressed air.
7. Oil Seals and Flexible Hoses.
CAUTION
Washing flexible hoses and oil seals with solvent cleaning compound or mineral spirits will
cause serious damage or destroy the material.
a. Wash flexible hoses with a mild solution of detergent and water and wipe dry.
b. Oil seals are generally damaged during removal; cleaning will not be necessary since new seals will be
used in assembly.
8. Machined Surfaces.
a. Clean machined surfaces with solvent cleaning compound.
b. Dry surfaces with compressed air.
9. Mated Surfaces.
a. Remove old gasket and/or sealing compound using a wire brush and solvent cleaning compound.
b. Lightly coat with oil and wrap all parts subject to rust before storing.
10. Rusted Surfaces. Clean all rusted surfaces using wire brush and abrasive cloth.
11. Oil-Bathed Internal Parts. Wipe oil-bathed internal parts clean with a lint-free cloth.
12. Air-Actuated Internal Parts. Wash air-actuated internal parts and dry with a lint-free cloth.
13. Externally Exposed Parts. Wash externally exposed parts with detergent and water. Rinse thoroughly and air
dry.
14. Hydraulic Cylinders.
a. Care in handling of parts and hydraulic system cleanliness cannot be over-stressed.
c.
Wash all metal parts including cylinder in solvent. Dry all parts with filtered compressed air. Protect
components with a light film of oil. Flush cylinder with oil to remove all traces of solvent and protect cylinder
walls from oxidation.
d. Check cylinder bore and rod surface for scratches and/or abrasions that may have been caused by grit
deposits in the cylinder packings. Carefully remove small rough or sharp surfaces with a fine grained
stone. The closer these surfaces are to a mirror finish, the more efficiently the new packing will operate.
0019-4
