Rotax 912 i Series Maintenance Manual page 103

INSPECTION
GOVERNOR DRIVE CHECK
Preparation
- General visual inspection. See relevant Main-
tenance Manual Line for the 912 i Series
engine type.
- Clean all parts carefully.
NOTICE
WARNUNG
The M8 fastening screw for the vacuum pump
gear is 16 mm long and has a flat screw head
for the governor drive, but only 14 mm long and
with a normal screw head for the vacuum pump
drive!
If repair work is necessary on the
NOTE:
governor, it should be sent to the ma-
nufacturer.
Step
1 Measure the inner diameter of the propel-
ler shaft. See wear limits.
2 Measure the journal of the oil inlet flange.
See wear limits.
NOTE: Wear usually appears as a flat-
tened area on the journal.
Fig. 9
1. Propeller shaft inner diameter
2. Oil inlet flange
Step
3 Check the gear-tooth system of the drive
gear and vacuum pump gear.
Effectivity: 912 i Series
Edition 1/Rev. 0
BRP-Powertrain
MAINTENANCE MANUAL
Procedure
Procedure
Fig. 10
1. Drive gear
Step
4 Check that all the oil bores in the governor
flange are clear.
Fig. 11
1. Governor flange
2. Vacuum pump gear
Procedure
61-20-00
Page 9
July 01/2012