Frictioning Of Roll And Pitch Controls - Magni Gyro M16C Ordinary Maintenance Manual

M16 (C) TANDEM TRAINER
MAINTENANCE MANUAL
3.7 FRICTIONING OF ROLL AND PITCH CONTROLS
(See Fig. 3.6/1 ‐ 3‐6/3)
Controls need to be frictioned each time there is an increase of vibrations ‐ with divergence features ‐ on these
controls, associated with a special slackness of the movements.
This is due to the wear of the bushes pn 057 and pn 053, of the square pn 056, of the fork pn 052, of the safety pin
pn AN 416‐1 and of the nuts pn MS 21083 N8.
The consequent play along the bolts NAS (pn NAS 628‐52 and pn NAS 628‐30) results in vibrations of the controls.
3.7.1 FRICTIONING PROCEDURE
(See Fig. 3.6/1 ‐ 3‐6/3)
1. Before starting verify that the engine's ignition key and push‐button are in OFF position and that all the
breakers are switched OFF;
2. The rotor being installed, move the control stick (2,fig. 3.3/1) along the longitudinal axis (pitch up and
down) to try out the force needed to move it;
ISSUE
A_November 2012
.
PAGE
51