TM 55-1520-240-23-4
5-43
INSTALL HORIZONTAL HINGE PIN OIL SEALS
(Continued)
5-43
Do not nick, cut, or twist seal.
Damaged seals can result in oil
leakage.
6.
Turn bolt (9) to install seal (5).
7.
Remove bolt (9), seal pilot (8), and bearing and
seal pilot (10).
NOTE
Seal can extend up to 0.015 inch past
lug face if seated all around.
8.
Check that seal (5) is flush with lug (3), or
extends from lug no more than 0.015 inch.
9.
Repeat steps 5 thru 8 for seal (5) on leading
lug (2).
10.
Wipe sealant squeezeout from lug (2 or 3). Use
cloth (E120) damp with solvent (E162). Wear
gloves (E186).
11.
Allow sealant (E340.3) or adhesive (63.1) to cure
for 6 hours at 72ºF (22ºC).
INSPECT
FOLLOW-ON MAINTENANCE:
Install horizontal hinge pin (Task 5-46).
Install horizontal hinge pin bearing caps (Task 5-41).
Install pitch-varying housing (Task 5-23).
END OF TASK
5-186