Rotax 915 i A series Maintenance Manual page 127

TOPICS IN THIS CHAPTER
Special tools............................................................................................................................................3
Service products .....................................................................................................................................5
System description .................................................................................................................................8
Safety instructions .................................................................................................................................8
Connections for display systems.............................................................................................................8
Maintenance .........................................................................................................................................8
Removal ..................................................................................................................................................9
Torsion shaft- removal ........................................................................................................................9
Disassembly..........................................................................................................................................10
Disassembly of the propeller gearbox ...................................................................................................10
Removal of the propeller shaft ..............................................................................................................10
Removal of the ball bearing and oil seal ................................................................................................ 11
Removal of the needle bearing .............................................................................................................12
Disassembly of the overload clutch assy................................................................................................13
Disassembly of the damper clutch assy. ................................................................................................14
Inspection .............................................................................................................................................17
Propeller gearbox single parts check.....................................................................................................17
Gear cover assy. check ........................................................................................................................17
Propeller shaft - check .......................................................................................................................18
Overload clutch - check .....................................................................................................................19
Damper clutch - check .......................................................................................................................20
Torsion bar - check ..............................................................................................................................21
Checking the splines............................................................................................................................22
Gear set check (gears).........................................................................................................................22
Pitting, general information...................................................................................................................23
Slight pitting ........................................................................................................................................24
Destructive pitting................................................................................................................................25
Flake pitting (large-area flank fractures) ................................................................................................25
Wear limits ............................................................................................................................................27
Assembly ..............................................................................................................................................32
Installation of the ball bearing ...............................................................................................................32
Propeller shaft - installation ................................................................................................................33
Torsion shaft - installation...................................................................................................................34
Assembly of the overload clutch assy. ...................................................................................................35
Assembly of the damper clutch assy......................................................................................................36
Assembly of the propeller gearbox assy.................................................................................................40
Installation.............................................................................................................................................42
Needle bearing - installation ...............................................................................................................42
Finishing work .....................................................................................................................................43
Effectivity: 915 i A Series
Edition 0/Rev. 0
BRP-Rotax
MAINTENANCE MANUAL HEAVY
Chapter: 72-10-00
PROPELLER GEARBOX
72-10-00
Page 1
August 01 2018