Eurocopter AS 350 83 Flight Manual page 257

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COMPLEMENTARY FLIGHT MANUAL
2.3 Tail Rotor Drive Svstem
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It consists of two items:
-a forward short shaft at the engine output
-a long shaft supported by five ball bearing assemblies.
These items are connected to each other by means of flexible couplings.
2.4 Tail Gearbox (TGB)
The TGB is a right-angle drive.
It is splash-lubricated and is provided with an oil level sight glass.
2.5 Rotor Brake
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~:-~~rake is mechanically controlled by means on the lever on the R
control quadrant. R
When the lever is FORWARD, the rotor brake is released.
When the lever is AFT, the rotor brake is applied.
On brake application, the lever causes a diaphragm spring to compress,
thus keeping the friction linings under constant load. A return spring
brings the device back to the "brake released" position when the lever
is moved forward.
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350 B3 7.6
00-23 Page 4