STEMME S12 User Manual

DOCUMENT NUMBER:
L500-912.820 ISSUE JUL 20, 2016
AMENDMENT: 00
DATE: 
CHAPTERPAGE 711
MAINTENANCE MANUAL STEMME S12
• Check control rods and bearings in the area of wing-to-center fuselage attachments; check
condition of quick-release joints and securing of its spring bolts.
7.3.2 CONTROLS IN THE WING
For checks and maintenance of the L`Hotellier Connections (aileron control rods at the inner-to-out-
er wing division) refer to Annex A.
To check bell-crank levers and adjacent components of ap and aileron control system remove
fairings of the ap and aileron link rods and inspect the bell-crank levers and the other parts of
the ap and aileron drive systems in the wing by means of a borescope or mirror.
The air brakes should properly close ush with the wing surface when locked. To allow for wing
bending, there must be a clearance of minimum 1.5 mm / 0.06 in. between the inboard and out-
board ends of the airbrake covers and the adjacent wing skins.
• Check tight t and securing of upper screw joints, and condition and tight t of bolts in
lower air brake.
7.3.3 CONTROLS IN TAIL CONE /VERTICAL TAIL
RUDDER CONTROL CONNECTIONS AND RUDDER STOPS
• Check condition of rudder control cables at the transition to PVC tube and connection of
rudder control cables at the tail boom entrance for proper condition.
• Check rudder control links for tight t of screw connections and brass bushings for wear
(observe section 6.5 Lubrication).
• Check proper installation of coupling rods to tail wheel.
• Check condition of rudder stops.
ADJUSTMENT OF RUDDER STOPS
• Adjust neutral position of rudder (use airfoil template), tail wheel free
• Mark reference on ground
• Adjust rudder stop screws on lower rudder tting left/right for rated values according to
section 6.4.1.1.
ELEVATOR CONTROL CONNECTION
• Check control link in rear horizontal tail tting for condition, tight screw connection, low
friction of bearing (Observe section 6.5 Lubrication).
To check bell-crank lever of the elevator control in the base of the vertical n remove two stoppers
from inspection holes on LH side.
• Check bell-crank lever for condition, tight connections and proper installation by means
of an borescope.

STEMME S12 Specifications

General

Brand	STEMME
Model	S12
Category	Aircrafts
Language	English