TM 1-1520-238-23
7-223
7.52.
SERVOCYLINDER SERVOVALVE REPLACEMENT – continued
7.52.5. Inspection
a. Check servocylinder for nicks, dents, or
cracks (para 7.1).
b. Check servocylinder and screws for stripped
or damaged threads (para 7.1).
c. Check removed and attaching parts for corro-
sion (para 1.49).
7.52.6. Installation
a. Install four new packings (7) on servovalve
fluid ports (9).
(1) Lubricate four packings (7). Use clean
hydraulic fluid (item 92, App F).
(2) Install four packings (7) on ports (9).
b. Install new packing (8) on connector (10).
(1) Lubricate packing (8). Use clean hydraulic
fluid (item 92, App F).
(2) Install packing (8) on connector (10).
c. Install new servovalve (5) on servocylinder
(2). Torque four screws (6) to 10 INCH-POUNDS.
(1) Aline ports (9) and connector (10) with servo-
cylinder ports (11) and receptacle (12). Care-
fully press servovalve (5) on servocylinder
(2).
(2) Install and torque four screws (6) to 10 INCH-
POUNDS. Use hexagon screwdriver and
torque wrench.
(3) Lockwire screws (6) in pairs. Use wire
(item 222, App F).
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