Replacement Of Trim Unit Board - Magni Gyro M16C Ordinary Maintenance Manual

5.1.3 REPLACEMENT OF TRIM UNIT BOARD
(See Fig. 5.1/2)
1. Remove the power supply connectors pn 102/A and 102/B, and the trim control connectors pn 115;
2. Loosen the socket head screws M5x10 and remove the electric actuator pn 102;
3. Remove the actuator's cover (3), unscrewing the four socket head screws (4) that fix it.
In this way it is possible to access the trim management unit board (5). Proceed as follows:
1. Gently lift the unit board (5) so to access the terminal board (6) more easily and loosen the terminals so
as to extract the cables;
2. Extract the engine power supply connector (7) (black and red wires) so that the unit board is completely
free;
3. Reconnect the engine power supply connector (7) to the new unit board supplied by Magni Gyro;
4. Re‐insert the six numbered wires in the terminal board, in progressive order as per drawing:
Complete the operation as follows:
1. Place the unit board (5) in its original position;
2. Put the actuator's pn 102 cover (3) back in its original position, taking care not to damage the numbered
wires;
3. Tighten the cover fixing screws (4);
4. Reposition the actuator pn 102 in its seat and fix it to the rack pn 271 with the bolts M6x10;
5. Insert the power supply connectors pn 115 and trim control connectors pn 113.
5.2 ANOMALIES OF THE ROTOR TACHOMETER READING
(See Fig. 5.1/3)
Reading error of the rotor tachometer pn 212 for serial numbers up to sn 16062564 (included), and pn 431 for the
following serial numbers.
5.2.1 UNSTEADY READING ANOMALY
Unsteady reading, non progressive and uneven reading of the rotor revolutions number.
Presence of anomalous points on the display (8, fig. 5.1/1).
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92
M16 (C) TANDEM TRAINER
MAINTENANCE MANUAL
ISSUE
A_November 2012