3000 Hours Of Component Operation - Bell 206L4 Maintenance Manual

5-42.

3000 HOURS OF COMPONENT OPERATION

DATA REFERENCE
BHT-206L-CR&O
ECCN EAR99
SCHEDULED INSPECTIONS
INSPECTION TASK DESCRIPTION
DATE: __________________W.O. _____________________
FACILITY: _________________ _ ________________________
HELICOPTER S/N: __________ _ ________________________
REGISTRY NO.: ____________ _ ________________________
TOTAL TIME:_______________________________________
SIGNATURE:_______________ _ ________________________
TAIL ROTOR GEARBOX
This inspection may be accomplished concurrently
with the duplex bearing (206-040-410-005, -101, or
subsequent) replacement at 3000 hours.
1. Perform backlash check of the gearbox prior to
disassembly. Backlash shall be 0.003 to 0.011 inch (0.08 to
0.28 mm) and shall not vary more than 0.002 inch (0.05 mm)
when measured at three different locations. Record backlash for
later reference.
If this inspection is being done in conjunction with
replacement of bearing (206-040-410-005, -101, or
subsequent), removal of input pinion assembly is not
required. Remove output cap, output shaft, and
duplex bearing
subsequent) after complying with step 1.
2. Remove input pinion and bearings. Remove output cap
and oil level sight glass.
3. Inspect spiral bevel gear and input pinion gear for
corrosion and chipped, broken, or worn gear teeth. Inspect gear
wear patterns.
NOTE
NOTE
(206-040-410-005, -101,
25 FEB 2011 Rev. 13
BHT-206L4-MM-1
INITIAL
MECH OTHER
or
5-00-00
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