TM 1-1520-238-23
Change 8
2-385
2.107.
VERTICAL STABILIZER REMOVAL/INSTALLATION – continued
g. If installed, remove two grounding jumpers
(14.1) from two terminal studs (14.2).
(1) Remove two nuts (14.3) and washers (14.4)
from two terminal studs (14.2).
(2) Remove two jumpers (14.1) and washers
(14.5) from terminal studs (14.2).
h. Install aircraft maintenance sling (15) on sta-
bilizer (16).
(1) Insert and lock four sling quick-release pins
(17) in stabilizer pin sockets (18).
i. Remove stabilizer (16) from tailboom (3).
(1) Position lifting crane aft of helicopter tail.
(2) Aline crane hook (19) over tail rotor gearbox
area on stabilizer (16) forward structure.
(3) Install crane hook (19) on stabilizer sling lift-
ing eye (20).
CAUTION
Tension sling at this point only enough to
remove strap slack. Hoist-loading on sta-
bilizer will cause major structural damage
if too much tension is applied.
(4) Operate crane winch very slowly to remove
all slack from sling (15) straps.
NOTE
If tailboom has non–elastomeric
mounts, perform steps (5) and (8)
through (9).
If tailboom has elastomeric mounts,
perform steps (6) through (9).
(5) Remove four shear bolts (21) and recessed
washers (22) from stabilizer lugs (23).
GO TO NEXT PAGE
M04-2990-21
14.3
14.1
14.214.5
14.4
15
19
20
22
23
M04-2990-6
3
21
16
18
17
AIRCRAFT WITHOUT ELASTOMERIC MOUNTS
