14
12. Installing the servos
The installation of a servo (1) always depends on the
model used. For specific information, refer to the design
documents of the model.
However, generally you should try to fasten the servos
with screws in such a way that vibrations are minimised.
For this purpose, the servos are usually enclosed in rub-
ber grommets (2) with metal sleeves (3).
In case of stiff linkages, servos cannot run in the required position. They consume excess power and the model control
behaviour will not be correct.
The linkages must work as smoothly as possible without clearance in the bearings or deflections.
Before mounting the servo levers, operate the transmit-
ter and then the receiver and check the correct centre of
the trim on the remote control transmitter (see following
chapter).
Always mount the servo levers at a 90° angle to the link-
age rods (see Figure 9, Sketch A).
If the servo lever is at an angle to the linkage rods (see
Figure 9, Sketch B), the control paths in both control direc-
tions will not be the same size.
A slight mechanical inclination, which is due to the linkage
of the servo lever, can be corrected later with the trim.
Figure 8
Figure 9