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instrument panel, to pull the cables up and prevent sag towards the
battery.
5.5.4 Rubbing cables
a) Check both the rudder and elevator cables to make sure they are not rubbing
on any tubes.
Apply some typical tension to the cables, such as feet against the
rudder pedals, as this will give a better indication of any problem areas.
b) Fine adjustments to the pulley positions can be made. The pulleys may have
to be carefully shimmed with thin washers between the starboard central cabin
tube
tu19 and the first pulley plate to ensure that the rudder cable just avoids
rubbing on the tube where it runs from the pedal to the pulley, figure 115.
The cable should not quite touch the tube with weight on the rudder
pedals. If it is too close for comfort a piece of prop tape can be placed
on the tube to act as a fairlead. If it touches the starboard central cabin
brace piece this may be shimmed out with plastic washers between it
and the
tu19 tube, up to 3mm if necessary. This limit is due to the
elevator cable rubbing the central brace at full left aileron.
Any shimming of the pulleys must not be over-done or the elevator
cable on the lower end of the stick will rub on the central cabin brace,
attached to the port central cabin tube
tu19 , on full right aileron. Wait
until the aileron movements are set up later before worrying too much,
you may have to adjust the stops to reduce the movement to the
correct amount.
Adjustment of the cables and the pulleys will require some fiddling to
achieve nice clean cable runs which do not rub, so don‟t tighten the
bolts up until this is achieved.
Figure 115 starboard rudder cable routing past central braces.