TM 55-1520-240-23-4
5-24
REMOVE PITCH HOUSING SEALS
5-24
INITIAL SETUP
Applicable Configurations:
All
Tools:
Powertrain Repairer’s Tool Kit, NSN
5180-00-003-5267
Outboard Seal Puller (T8)
Seal Removal Tool (APP E-2)
Materials:
Grease (E190)
Dry Cleaning Solvent (E162)
Gloves (E186)
Cloths (E120)
Personnel Required:
Aircraft Powertrain Repairer (2)
References:
Appendix E
Equipment Condition:
Off Helicopter Task
Pitch-Varying Housing Removed From Rotary-Wing
Head (Task 5-22)
Dry cleaning solvent (E162) is
flammable and toxic. It 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
Procedure is same to remove seals
from all six pitch-varying housings.
Bearing cage wear which permits
roller bearings to be loose or to fall out,
is not cause for cage replacement.
1.
Clean roller bearings (1) that fall from cage (2).
Use cloth (E120) damp with solvent (E162). Use
gloves (E186).
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