BHT-212-MM-1
5-00-00
Page 182 Rev. 14 26 JUN 2013
Export Classification C, ECCN EAR99
Parts exhibiting evidence of wear or physical
damage shall be checked dimensionally. Refer to
BHT-212-CR&O manual for wear and damage limits.
BHT-212-CR&O 2. Disassemble transmission to accomplish the following:
a. Remove B4430 chip detector from 212-040-059 top
case. Clean chip detector using drycleaning solvent (C-304).
Visually inspect chip detector for cut packings, burrs, bent tube,
and foreign material.
b. Remove 212-040-059 top case. Inspect mast assembly
mating surface, pilot diameter and ring gear mating surface,
pilot diameter for fretting and wear.
c. Planetary component removal:
(1) Remove 204-040-360 upper planetary assembly
and 204-040-117 adapter as an assembly.
(2) Remove M27426-1220C retaining ring and
204-040-117 adapter from 204-040-360 planetary assembly. Do
not disassemble 204-040-360 planetary assembly.
(3) Remove 204-040-337 liner and 204-040-135
bearing as an assembly. Do not disassemble.
(4) Remove 205-040-231 ring gear assembly.
(5) Remove 205-040-230 upper sun gear,
204-040-378 deflector, and RR687L retaining ring as an
assembly.
(6) Remove 204-040-784 lower planetary assembly.
(7) Remove 204-040-338 liner, 204-040-135 bearing,
and 204-040-257 liner as an assembly. Do not disassemble.
(8) Remove 205-040-229 lower sun gear.
5-47. EACH 3000 HOURS OF COMPONENT OPERATION (CONT)
DATA REFERENCE INSPECTION TASK DESCRIPTION
INITIAL
MECH OTHER
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