- a gear assembly

 - a lever assembly

 - a bellcrank assembly Throttle control lever travel is transmitted to the artificial feel unit and to the throttle control unit. The linear movement of the throttle control levers is transformed into a rotary movement at the bellcrank which turns around the friction brake assembly shaft. This movement rotates a toothed quadrant integral with the shaft. This toothed quadrant causes inverse rotation of a gear equipped with a disk which has four detent notches. Each notch corresponds to a throttle control lever setting and is felt as a friction point at the throttle control levers.

 C. Throttle Control Unit (Ref. Fig. 005, 006, 007) A mechanical rod transmits the throttle control lever movement. It connects the throttle control artificial feel unit to the input lever of the throttle control unit. The throttle control unit comprises :
 - an input lever

 - mechanical stops which limit the angular range

 - 2 resolvers whose signals are dedicated to the ECU (one resolver per channel of the ECU)

 - 6 potentiometers fitted three by three. Their signals are used by the flight control system

 - a device which drives the resolver and the potentiometer

 - a pin device for rigging the resolvers and potentiometers

 - 1 switch whose signal is dedicated to the EIU.

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 Throttle Control Artificial Feel Unit
 Figure 004

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 Throttle Lever Angle Harness
 Figure 005

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 Control Unit - Mechanical Part
 Figure 006

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 Thrust Control Power Supplies
 Figure 007

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 - a safety device which leads the resolvers outside the normal operating range in case of failure of the driving device

 - two output electrical connectors.
 The input lever drives two gear sectors assembled face to face. Each
 sector drives itself a set of one resolver and three potentiometers.
 The relationship between the throttle lever angle and throttle resolver
 angle (TRA) is linear and : 1 deg. TLA = 1.9 TRA.
 The accuracy of the throttle control unit (error between the input lever
 position and the resolver angle) is 0.5 deg. TRA.
 The maximum discrepancy between the signals generated by the two
 resolvers is 0.25 deg. TRA. The TLA resolver operates in two quadrants :
 the first quadrant serves for positive angles and the fourth quadrant for
 negative angles.
 Each resolver is dedicated to one channel of the ECU and receives its
 electrical excitation from the ECU.
 The ECU considers a throttle resolver angle value :

 - less than -47.5 deg. TRA or

 - greater than 98.8 deg. TRA as resolver position signal failure.
 The ECU incorporates a resolver fault accomodation logic. This logic
 allows engine operation after a failure or a complete loss of the
 throttle resolver position signal.

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 THROTTLE CONTROL - ADJUSTMENT/TEST

__________________________________
 TASK 76-11-00-820-044
 Adjustment of the Mechanical Linkage
 1. Reason for the Job
__________________
 Self Explanatory
 2. Job Set-up Information
______________________
 A. Fixtures, Tools, Test and Support Equipment
 -------------------------------------------------------------------------------
REFERENCE QTY DESIGNATION
 -------------------------------------------------------------------------------
No specific blanking caps
 No specific circuit breaker(s) safety clip(s)
 No specific warning notice
 98DNSA20206080 2 RIGGING PIN

R 98DNSA20208080 1 RIGGING PIN
 B. Consumable Materials
 -------------------------------------------------------------------------------
　
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