MAINTENANCE MANUAL
SAVANNAH S
Doc. No.:
MM-SVNH-EN
Revision:
07
Rev. Date:
07/11/2022
Proj. Ref.:
SVNH S
A/C:
Savannah S
Applies to Generic Serial Number:
yy-mm-54-xxxx
Page:
106/132
DOC
FMM00
7.3. Control surfaces hinges
All the control surfaces hinges are made with the sequence of parts as shown below in
The bushing is the part number SC21X, where X indicates different length (i.e. 0, 2, 7). To set
correctly the closure of the hinge, close the castle nut up to touching all the surfaces and then install
the cotter pin, without forcing. If the hinge point take excessive free play, not more than 0.5 [mm]
evaluated manually and visually, remove the cotter pin and close 1 tooth additionally the castle nut,
then re-install the cotter pin. Attention: do not close excessively the nut because it can force the
hinge point around the rotation. After the setup, check the hinge point free play within tolerance and
verify the cotter pin is installed rigidly.
Figure 46: Control surfaces hinges
7.4. Fuel system drainage
To drain the fuel system basically open the fuel drain valve located below to the Collector tank. If the
airplane is in levelled reference on-ground attitude, a couple of litres could remain in the system; for
a complete draining, incline the airplane with tail down, wait few minutes and then drain entirely from
draining valve. To remove the unusable fuel, open the delivery hose of the electric fuel pump and
then drain from that.
7.5. Brakes system bleeding
The brakes oil system can be drained from the lower screw of the brakes caliper. The right brake
and left brake systems are independent, therefore both side must be drained.