Cleaning and Inspection -706880632

TM 5-4210-233-14&P-1

4-200. AERIAL DISCHARGE VALVE PNEUMATIC ACTUATOR - Continued

(8) Remove center split spacer (13).

(9) Remove spring clip (14) and retaining washer (15).

(10) Tap shaft downward and remove. Take care to proect actuator bore from possible damage from

lower pinion gear teeth. As drive shaft (1 0) is being withdrawn, the internal components can be

removed in sequence. Upper spacer (16), upper pinion gear (17), lower pinion gear (18), lower

spacer (19) and keys (20).

(11) Remove spring clip (21) and retaining washer (22) from drive shaft (10).

(12) Remove two bearings (23) from actuator body (24). Remove and discard four O-rings (25 and

26).

c. Cleaning and Inspection.

WARNING

Dry cleaning solvent P-D-680 is potentially dangerous. Avoid

repeated and prolonged breathing of vapors and skin contact

with the liquid. Do not use near open flame, arcing equipment

or other ignition sources. Always wear eye protection and

protective clothing. The flash point of P-D-680 is 100 to 138

deg. F (38 to 59 deg. C).

(1) Clean all metal parts in dry cleaning solvent (Item 3, Appendix E).

WARNING

Death or serious injury could occur if compressed air is

directed against the skin. Do not use compressed air for

cleaning or drying unless the pressure is/has been reduced

to 30 psi (2.11 kg/cm ) or less. When working with com-

pressed air, always use chip guards, eye protection, and other

personal protective equipment.

(2) Dry all parts with compressed air.

(3) Inspect pistons (11) for scoring. Inspect teeth on pistons (11) for damage. Replace pistons as

necessary.

(4) Inspect pinion gears (17 and 18) for damage. Replace as necessary.

(5) Inspect piston bores and drive shaft bore in actuatorbody (24) for scoring.

(6) Inspect all other parts for damage. Replace parts as necessary.

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