TM 55-1520-240-23-5
6-53
REMOVE AFT ROTOR SHAFT UPPER SEAL (AVIM)
(Continued)
6-53
REMOVE SLIDER SHAFT
7.
Remove lockwire, from 12 bolts (8). Remove
bolts end washers (9).
8.
Remove both halves of seal (10).
9.
Remove 16 nuts (11) and washers (12).
10.
Remove slider shaft (13). If needed, heat base
of slider shaft to 230º to 250ºF (110º to 120ºC).
Use a heat gun and measure temperature with a
pyrometer. If needed, use a phenolic wedge to
lift the shaft.
REMOVE SEAL
11.
Remove 10 nuts (14) and washers (15) from
bearing retainer (16). Pull retainer and packing
(17) away from support (18).
12.
Remove support (18) from bearing (19). Use a
soft-faced mallet. If needed, heat support to 230º
to 250ºF (110º to 120ºC). Use a heat gun and
measure temperature with pyrometer.
13.
Slide support (18) from shaft (2).
Dry cleaning solvent (E162) is
combustible and toxic. It can irritate
skin and cause burns. Use only with
adequate ventilation, away from open
flame. In case of contact, immediately
flush skin or eyes with water for
at least 15 minutes. Get medical
attention for eyes.
13.1.
Clean shaft (2) in the area above bearing locknut
(19.1). Use cloths (E120) and dry cleaning
solvent (E162). Wear gloves (E184.1).
13.2.
Examine shaft (2) In the area of seal contact for
a wear groove (19.2). If there is a groove deeper
than 0.005 inch, reject the shaft.
14.
Remove retaining ring (20).
15.
Remove seal (21).
16.
Remove packing (22).
FOLLOW-ON MAINTENANCE:
None
END OF TASK
6-210
