TM 55-1520-240-23-6
7-123
INSPECT PIVOTING AND SWIVELING SERVOCYLINDERS
(Continued)
7-123
NOTE
Procedure is similar to inspect forward
and aft pivoting and swiveling servo
cylinders. Forward pivoting servo
cylinder is shown here as typical.
Differences are noted in text.
1.
Check bolt (1), bushing (2), and plates (3) for
looseness. There shall be no loose bolt, bushing
or plates.
1.1.
Check that there is a gap between flanges of
bushings (2 and 3.1).
2.
Check valves (4). If either jam indicator (5) is
extended, reset and perform operational check
(TM 55-1520-240-T).
3.
Check bearing (6) for axial play as follows:
a.
Move lug (7) towards lug (8).
b.
Insert spacer (APP E-32) (9) between lug
(7) and lug (8). Spacer (9) must fit with no
looseness and must not be so tight that it
forces lugs apart.
c.
Move lug (7) towards lug (10).
d.
Measure distance between lug (8) and
spacer (9). Distance (axial play) shall not
exceed 0.010 inch.
4.
Check bearing (6) for radial play. Push lugs (8
and 10) down and then up. Feel for play between
lug (7) and lugs (8 and 10). There shall be no
play between lugs.
5.
Check bearings (11) for radial play. Push housing
(12) down, then up. Feel for play between lugs
(13 and 14) and lug (15). There shall be no play
between lugs.
6.
Check the following at the forward transmission
servo cylinder mounts.
a.
Check outboard pivoting servo cylinder lugs
(13). Bushings (16) shall not be past inboard
surface (17) of lug. If bushing is past surface,
replace forward transmission.
b.
Check for a positive gap between outer
surface of lug (13) and inside surface of
washer (18). If there is no gap present,
inspect hardware stack-up on the pivoting
servo cylinder or swiveling servo cylinder.
7-540
