DOCUMENT NUMBER:
L500-912.820 ISSUE JUL 20, 2016
AMENDMENT: 00
DATE: īī
CHAPTERīPAGE 6ī16
MAINTENANCE MANUAL STEMME S12
NONīSTANDARD TIGHTENING TORQUES INCLUDE THE FOLLOWING īFOR EXAMPLEī
Item Designation Loctite Tightening Torque
[Nm] [lbf ft]
1. M8 connecting clutch and propeller
īange of the engine.
without 22 16
2. M10 connecting clutch and īexible disk
(drive shaft).
243 35 25.8
3. M10 connecting īexible disk and forked
sleeve of the drive shaft.
243 35 25.8
4. M10 connecting drive shaft and īexible
disk (front gear).
243 35 25.8
5. M10 connecting īexible disk and front
gear.
221 35 25.8
6. M8 connecting front gear in the gear sus-
pension.
without 16 11.8
7. M8 fastening screws of the propeller hub
on the front gear īange.
without 1st step: 10
2nd step: 30
1st step: 7.4
2nd step: 22.1
8. M8 locking nut on the propeller fork.
WARNING
- not included in normal maintenance
without 20 14.7
9. Yield bolt fastening the fork on the pro-
peller hub.
WARNING
- screw thread lubricated.
- not included in normal maintenance
without 1st step: 50
2nd step: 16
1st step: 36.9
2nd step: 11.8
10. Magnetic screw in the front gear. without 15 - 20 11.1 ā 14.7
CAUTION
Screws and bolts secured by Loctite 243!
ENGINE
For tightening torques of screw connections on the engine refer to īMaintenance Manual (Line
Maintenance) for ROTAX Engine Type 914 Seriesī (Annex E), īMaintenance Manual (Heavy
Maintenance) for ROTAX Engine Types ROTAX 912 and 914 Seriesī and applicable SI, SB and SL.