BHT-206A/B-SERIES-MM-1
5-00-00
Page 122 Rev. 14 30 APR 2013
Export Classification C, ECCN EAR99
MOD 5: Fifth line of data plate. Longer magnetic drain plug
B-148 or chip detector B-3228 (refer to AL 206A-58 or
SL 206A-133).
TRANSMISSION (206-040-002-005)
SUN GEAR AND PINION BEARINGS
Chapter 63 1. Remove transmission.
BHT-206A/B-M&O 2. Remove top case. Mast assembly may be left attached to
top case unless top case is to be inspected.
HANDLE PLANETARY ASSEMBLY WITH
CAUTION TO AVOID TILTING OF PLANET GEARS
AND SPILLING OF SPHERICAL ROLLERS. IF
PLANET ASSEMBLY BECOMES TILTED, DO NO
FORCE TO STRAIGHTEN; ROTATE PLANET
GENTLY TO STRAIGHTEN. IF PLANET WILL NOT
TURN FREELY, ONE OR MORE ROLLERS MAY
HAVE SHIFTED FROM PROPER POSITION;
PRESS ROLLERS TOWARD CENTER OF PLANET
WITH FINGERS TO FREE ASSEMBLY. (FORCING
ASSEMBLY TO STRAIGHTEN CAN BRINNEL THE
INNER RACE.)
3. Remove internal planetary gear.
BHT-206A/B-M&O 4. Remove planetary assembly and sun gear as one
assembly. Inspect planetary assembly.
a. Inspect sun gear as follows:
(1) Visually inspect for general condition.
(2) Perform over pins dimensional inspection.
5-37. 600 HOURS OF COMPONENT OPERATION (CONT)
DATA REFERENCE INSPECTION TASK DESCRIPTION
INITIAL
MECH OTHER
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