STEMME S12

DOCUMENT NUMBER:
L500-912.820 ISSUE JUL 20, 2016
AMENDMENT: 00
DATE: 
CHAPTERPAGE 616
MAINTENANCE MANUAL STEMME S12
NONSTANDARD TIGHTENING TORQUES INCLUDE THE FOLLOWING FOR EXAMPLE
Item Designation Loctite Tightening Torque
[Nm] [lbf ft]
1. M8 connecting clutch and propeller
ange of the engine.
without 22 16
2. M10 connecting clutch and exible disk
(drive shaft).
243 35 25.8
3. M10 connecting exible disk and forked
sleeve of the drive shaft.
243 35 25.8
4. M10 connecting drive shaft and exible
disk (front gear).
243 35 25.8
5. M10 connecting exible 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 ange.
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 – 14.7
CAUTION
Screws and bolts secured by Loctite 243!
ENGINE
For tightening torques of screw connections on the engine refer to Maintenance Manual (Line
Maintenance) for ROTAX Engine Type 914 Series (Annex E), Maintenance Manual (Heavy
Maintenance) for ROTAX Engine Types ROTAX 912 and 914 Series and applicable SI, SB and SL.