-
an output shaft

 -
an output end-cover.

 Rotary Actuator - Tracks 1 and 4
 Figure 023

R 1EFF : 001-049, 051-061, 101-105, 201-203, 1 27-54-00Page 52 1 1 May 01/05 1 1 1CES 1

 Rotary Actuator - Typical
 Figure 023A

R 1EFF : 062-099, 106-149, 151-199, 204-299, 1 27-54-00Page 53 1301-399, 401-499, 1Aug 01/05 1 1 1CES 1 The input gear and first stage planet gears are installed in bearings in the1 input end-cover and the short-flanged hub assembly. The annulus gear and power-stage planet gears are installed inside the ring gear, between the short-flanged hub and the long-flanged hub assemblies.

 Each planet gear has three gears, front, center and rear. The rear gear teeth on the first-stage planet gears engage with the annulus gear. The annulus gear and the rotating ring gear engage with the front gear teeth on the power-stage planet gears. The center gear teeth of the power-stage planet gears engage with fixed ring gear. The rear gear teeth engage with the teeth of the output ring gear.
 The output shaft goes through the output end-cover and is splined into the flanged hub assemblies. A retaining plate is attached to the output shaft to keep the output shaft and the input gear in position. The output shaft is connected to the flap drive lever.
 (a) Operation
 Input from the offset gear box is transmitted through the input gear to first-stage planet gears. The first-stage planet gears turn and transmit the input through the annulus gear assembly to the power-stage planet gears.
 The power-stage planet gears engage with the fixed ring gear, the output ring gear and the rotating ring gear. As the fixed ring gear is attached to the wing, the power stage planet gears turn and move around the fixed ring gear. As a result the output ring gear and the rotating ring gear turn. This transmits output through the flanged hubs and the output shaft to the flap drive lever.
 **ON A/C ALL
 G. Actuator Track 2 6211CM(6261CM)
 **ON A/C 001-049, 051-061, 101-105, 201-203,
 (Ref. Fig. 024)
R **ON A/C 062-099, 106-149, 151-199, 204-299, 301-399, 401-499,
 (Ref. Fig. 024A)

 Actuator - Track 2 Figure 024 
R 1EFF : 1 1 1CES  001-049, 051-061, 101-105, 201-203,  1 111 27-54-00 Page 55 May 01/05

 Actuator - Track 2
 Figure 024A

R 1EFF : 062-099, 106-149, 151-199, 204-299, 1 27-54-00Page 56 1301-399, 401-499, 1Aug 01/05 1 1 1CES 1 **ON A/C 001-049, 051-061, 101-105, 201-203,

 (Ref. Fig. 025)

R **ON A/C 062-099, 106-149, 151-199, 204-299, 301-399, 401-499,
 (Ref. Fig. 025A)
 **ON A/C 001-049, 051-061, 101-105, 201-203,
 The actuator is almost the same as the actuator for track 1. Installed on this actuator is a longer type of rotary actuator.

R **ON A/C 062-099, 106-149, 151-199, 204-299, 301-399, 401-499,
 The actuator is an assembly that has:
 -an offset gearbox
 -a rotary actuator.
 (1) Offset Gearbox - Track 2
 The offset gearbox has:
 -an actuator housing
 -
a torque limiter housing

 -
a torque limiter.

 The actuator housing is a machined casting which contains the rotary
 actuator.
 The torque limiter housing is bolted to the actuator housing. It
 contains an input shaft, the torque limiter and the input gears.
 An input gear on the input shaft engages with an idler gear installed between the input gear and a gear wheel assembly. This gear wheel assembly engages with, and transmits the drive to, the input gear of the rotary actuator. Two roller bearings hold the input shaft in the torque limiter housing.
 The actuator assembly (offset gearbox and rotary actuator) is lubricated with semi-fluid grease and is filled through a vent plug in the actuator housing.

 Offset Gearbox - Track 2
 Figure 025

R 1EFF : 001-049, 051-061, 101-105, 201-203, 1 27-54-00Page 58 1 1 May 01/05 1 1 1CES 1

 Offset Gearbox - Track 2
 Figure 025A

R 1EFF : 062-099, 106-149, 151-199, 204-299, 1 27-54-00Page 59 1301-399, 401-499, 1Aug 01/05 1 1 1CES 1 (2) Torque Limiter - Track 2

 The torque limiter prevents a torque-overload if there is a
 malfunction in the flap drive system. The torque limiter has:

 -a ball ramp device
 -five earthed plates
 -six friction discs
 -
a group of eight spring discs

 -
a thrust cup

 -
a group of six spring discs

 -
　
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