TM 55-1520-240-23-4
5-27
INSTALL WEAR SLEEVE
(Continued)
5-27
NOTE
Procedure is same to install wear
sleeve on any housing on forward
or aft head. Forward head is shown
here.
1.
Remove old sealant from pitch shaft (1). Use
methyl-ethyl-ketone (E244). Wear gloves (E186).
2.
Check shaft (1) for scores, nicks, or gouges.
Damage shall not exceed 0.005 inch in depth
by 2.5 inches in length.
Do not block oil hole in pitch shaft.
Sealant in oil hole will restrict oil flow
to pitch housing.
3.
Apply sealant (E336) around pitch shaft shoulder
(2). Check oil hole (3). Oil hole shall not be
blocked by sealant. Wear gloves (E186).
5-139
