TM 9-2590-209-14&P
l. Install washer (4) and nut (3) on rod (18) and
6-30. Cleaning.
Refer to paragraph 5-5 for cleaning
secure with cotter pin (2).
instructions.
m.
Install preformed packing (10) in cylinder
6-31. Inspection. Check the components for wear
(1).
limit as specified in table 6-4.
n. Slide piston assembly into cylinder (1).
6-32.
Assembly (Fig 6-8).
o. Install eight lockwashers and screws (12 and 13)
a. During assembly, replace with new preformed
to secure head (11) to cylinder (1).
packing, seals, and/or all worn or deformed parts.
b. Install two bushings (20) in head (19).
6-33. Test. To test the hydraulic cylinder and ram,
proceed as follows:
c. Connect threaded head (19) to rod (18).
a. Connect a test arrangement to the cylinder as
d. Install packing assembly (14) into internal bore
shown in figure 6-9.
of head (11).
b. Cycle the hydraulic cylinder through its full stroke
e. Using two screws (17), secure retainer (15) to
at least five times by applying pressure alternately to port
head (11).
A and B. There should be no exterior. leakage.
Leakage past the rod seals during cycling test should not
f. Install seal (16) in retainer (15).
form one drop.
g. Slide piston rod (18) into head (11) bore.
c. Apply pressure at port B and retract the cylinder
to its minimum length and then disconnect the line at port
h. Slide washer (9) over rod (18).
A. This leakage should not exceed 3 cubic inches per
minute during the fifth minute of a 5-minute pressure test
i. Install piston (8) on rod (18).
period. There should be no rod seal leakage or exterior
leakage.
I. Install packing assembly (7) on piston (8).
k. Install preformed packing (5) on piston (6).
6-34.
Install piston (6) on rod (18) to mate with packing set (7).
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