Textron Bell 206A Series, Maintenance Manual

Page: 153 / 234

BHT-206A/B-SERIES-MM-1
5-00-00
30 APR 2013 Rev. 14 Page 123 Export Classification C, ECCN EAR99
(3) If over pins dimensions is greater that REPLACE
dimension allowed, inspect gear teeth of sun and planetary
gears, and if acceptable, the assembly may re reinstalled. If
over pins dimension is less than REPLACE dimensions
allowed, replace sun gear.
b. Inspect pinion bearing assemblies as follows:
(1) Visually inspect gear for chipped, broken, or worn
teeth.
(2) Check bearing surfaces of rollers, inner race, and
outer race for chips, cracks, nicks, brinelling, spalling, or
corrosion.
CAUTION
REMOVE ALL SAFETY WIRE AND TAPE. ENSURE
PARTS DO NOT DROP INTO TRANSMISSION
CASE.
BHT-206A/B-M&O 5. Reassemble transmission and install.
NOTE
If it becomes necessary to replace sun gear for
second time due to spline wear, the mating main
input gear shaft must also be inspected.
BHT-206A/B-M&O TOP CASE ASSEMBLY
1. At time of sun gear inspection, remove mast assembly, oil
filler cap and vent assembly, split spacer ring in ring gear spline
relief groove, and the oil jet.
2. Fluorescent penetrant inspect top case in area of ring gear
spline tooth roots for indications of cracks. If cracks are found,
part must be replaced. It is not necessary to strip paint from
exterior of case. Use of dye-check is not recommended.
SCHEDULED INSPECTIONS
5-37. 600 HOURS OF COMPONENT OPERATION (CONT)
DATA REFERENCE INSPECTION TASK DESCRIPTION
INITIAL
MECH OTHER