TM 55-4920-394-13&P
4-32. Cleaning.
4-33. All parts must be absolutely clean and free from dirt, lint or other foreign matter. Wash all parts with
cleaning solvent Federal Specification P-D-680 or equivalent, and dry-using compressed air.
4-34. After all parts are clean, each part must be protected by a light coat of fluid. Use the same fluid as will
be used in the hydraulic system when it is placed in operation. Use of fluids which are physically or chemically
incompatible with either the system fluid or O Rings may result in serious damage.
4-35. Inspection.
a. Inspect all components for undue wear, scratches, or damage.
Replace any component that shows
indications of damage.
b. The spool and sleeve (22) must move freely without binding when installed. If they are too loose, they must
be replaced. Check for pitting and scoring, replace if any evidence of damage is found.
c. Remove minor nicks and scratches with No. 600 crocus cloth, Federal Specification P-C-458.
4-36. Compensator Cap Assembly Reassembly.
NOTE
All reference in this paragraph to O Ring(s), gasket(s) indicate new material.
a. Install 0 Ring (27) in internal groove of compensator cap (26).
b. Install seal piston (14) and O Ring (15) in adjustment housing (11). Drop compensator spring (13) into
housing and install spring retainer (12). Install O Ring (18) on adjustment housing (11). Thread in adjustment
screw (16) and lock nut (17). Make certain screw is turned completely into adjustment housing (11). Screw the
adjustment housing (11) into compensator cap (26).
c. Coat spool (25) with hydraulic fluid Federal Specification MIL-H-5606 or MIL-H-82382, and insert into
sleeve (23). The small end of the spool must be inserted into the end of the sleeve which has a flat ground on
it. Spool must move freely without binding. Install O Ring (24) on the sleeve. Insert spool with sleeve, flat end
first into compensator cap (26) in the opening directly opposite of the adjustment housing (11).
d. Install O Ring (20) on plug (19). Position tension washer (21), rounded end first, on back of sleeve and
thread plug into compensator cap (26).
e. Position O Ring (8) in compensator cap (26) and O Ring (9) in compensator cylinder (6). Assemble the
compensator cap to the compensator cylinder making certain that the O Ring (9) aligns with the hole on the
compensator.
4-12
