STEMME S10 Service Manual

Maintenance Manual STEMME S10 Date of Issue: Oct. 01, 1990 page: 32
Amendment No.: - Date: -
A4010021_B19.doc Doc.No.: A40-10-021
Especially after repairs, after installation of additional equipment and after painting works, make sure that the
empty weight and corresponding center of gravity remain within the allowable range. If this cannot be
determined by analysis, the aircraft is to be weighed.
If necessary, the aircraft is to be trimmed by fixed ballast on the transmission gear frame or behind the tail
wheel so that the center of gravity corresponding to the empty mass is within the allowable range.
If equipment in the instrument panel has been replaced, the correction of the empty mass and corresponding
center of gravity is to be based on the lever arm in front of the reference plane. Check if the center of gravity
position is still within the allowable range.
6.4 Control System
6.4.1 Deflection of Control Surfaces, Control System Friction, and Pilot Forces
Measurement procedures and design values are listed in the Alignment Report. Pattern see fig. 6.4.1.a.
6.4.2 Masses and Moments of the Control Surfaces
After repair and new painting of the control surfaces, it is to be checked whether the masses and taildown
moments are still within the allowable tolerances. In case the tolerances are exceeded, the manufacturer is to
be contacted.
The allowable masses and moments of the control surfaces are stated in fig. 6.4.2.a "Masses and Moments
of Control Surfaces". The sheet also contains the procedures to determine the moments.
6.4.3 Slackness of Control System Bearings
For each control surface, a maximum slackness between the cockpit control and control surface is permitted.
It is determined at the same measurement points where the control system alignment data are checked
(please refer to fig. 6.4.1.a). During this check, the cockpit controls are to be locked.
allowable slackness
ailerons 0.1 in. (2.5 mm)
wing flaps 0.1 in. (2.5 mm)
elevator 0.1 in. (2.5 mm)
6.5 Lubrication Chart
Lubricants:
For slide bearings steel-on-steel and anti-friction bearings, use lubricants and oils on an MoS
2
basis. For
bearings containing brass, bronze or copper components, only MoS
2
-free lubricants and oils shall be used.
Bearings of the Control System and Control Surfaces:
The control system bearings in the fuselage and in the wing are provided with permanent greasing and do not
require any service for a long time.
The control surface hinges (except the rudder hinge) are coated and normally lubrication is not required,
unless under aggressive environmental conditions, the bolts show first signs of corrosion (in this case use
MoS
2
-free lubricant).
The rudder hinges are to be lubricated depending on the degree to which they are exposed to contamination
(especially the lower hinge).

STEMME S10 Specifications

General

Brand	STEMME
Model	S10
Category	Aircrafts
Language	English