TM 55-1520-240-23-5
6-91
INSTALL AFT TRANSMISSION ROTOR SHAFT SEAL
(Continued)
6-91
1.
Finish seal retainer (1), the metal part of seal (2),
and retaining ring (3) as follows:
The materials used in this step are
flammable and toxic. They can irritate
skin and cause burns. Use only in
well-ventilated area, away from heat
and open flame. In case of contact,
immediately flush skin or eyes with
water for at least 15 minutes. Get
medical attention for eyes.
NOTE
If refinishing materials are not
available, seal the retainer installation
after assembly as in step 6.
a.
Clean parts with acetone (E20) and cloths
(E120). Wear gloves (E184.1).
b.
Wet aged primed surfaces with thinner (E415
or E419). Allow to air dry for no more than
four hours.
c.
Apply two coats of epoxy primer (E292 or
E292.1). Allow to dry.
d.
Apply two coats of epoxy topcoat (E166).
Wear Kevlar gloves (E187) when
handling hot retainer. Hot metal can
burn hands.
Do not heat retainer over 250ºF
(120ºC). Metal can be damaged.
2.
Heat retainer (1) to 230º to 250ºF (110º to
120ºC). Use a gun-type heater and pyrometer.
Wear gloves (E187).
3.
Install packing (4) in retainer (1).
4.
Install seal (2) in retainer (1), flat side up. Use a
wood plank and mallet to seat the seal.
5.
Install retaining ring (3).
6.
If retainer installation components were not
finished in step 1, seal the installation as follows:
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.
a.
Clean exposed top surfaces of the retainer
(1), seal (2) and retaining ring (3). Use dry
cleaning solvent (E162) and cloths (E120).
Wear gloves (E184.1).
b.
Cover retaining ring (3) with a heavy bead
of sealant (E336) from the upper edge of
retainer (1) to the upper surface of seal (2).
7.
Install packing (5) on bottom of retainer (1).
8.
Lightly coat lip of seal (2) with grease (E190) to
prevent corrosion.
9.
Lightly coat the mating surface of rotor shaft (6)
with oil (E253, E254, or E254.1).
10.
Install seal retainer (1) on rotor shaft (6). Be
careful not to damage seal (2).
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