A320飞机维护手册 AMM DOORS 舱门3(48)

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 The adjustment lever unit contains the inverting lever, the lever shaft and the bellcrank. The inverting lever is connected to the transmision lever ot the lifting shaft through the fork rod. The bellcrank is connected to the twin lever of the internal control shaft through the connection shaft.
 The lifting shaft assembly includes the transmission lever, the blocking lever and the lifting shaft. The transmission lever is connected to the torsion lever of the torsion bar through the fork rod .
 The door detent assembly contains the detent spring, the roller lever and the detent shaft. The roller lever turns the detent shaft as soon as the roller lever does no longer touch the door frame fitting. This loads the detent spring and operates the safety catch which engages with the blocking lever. The lifting mechanism is blocked to safety the opened door in its lifted position.
 G. Escape Slide-Release Mechanism The escape slide-release mechanism has the subsequent primary components: (Ref. Fig. 014)
 -
the Arm/Disarm Unit,

 -
the Release Assembly,

 -
the Transmission Shaft,

 -
the Intermediate Shaft.

 (1) Arm/Disarm Unit Parts of the arm/disarm unit are the slide-control handle, the cam arrangement and the roller lever. The cam arrangement is engaged with the roller lever if the slide control handle is in the ARMED position. The operation of the roller lever via the transmission shaft sets the slide control handle in the DISARMED position automatically. When the slide control handle is the DISARMED position, you can install a rigging pin into the relataed rigging bracket to safety the arm/disarm unit.
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 Door Handle and Locking Shaft Mechanism of 60" Emergency Exit Doors
 Figure 012 (SHEET 1)

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 Door Handle and Locking Shaft Mechanism of 60" Emergency Exit Doors
 Figure 012 (SHEET 2)

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 Balance and Lifting Mechanism
 Figure 013
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 Escape Slide-Release Mechanism
 Figure 014
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 The arm/disarm unit controls the release shaft assembly through the intermediate shaft when the slide control handle is operated.
 (2)
 Release Shaft Assembly The release shaft assembly includes the release lever, the operation lever, the spring element and the release shaft. The release lever engages with the actuation lever on the door frame if the slide-control handle is in the ARMED position. The operation lever is then in a position below the gas release lever of the door damper and emergency operation cylinder. The spring element is installed between the door structure and the lever of the release shaft. It makes sure that the release shaft is always in the overcenter position.

 (3)
 Transmission Shaft The transmission shaft which transfers the operation of the outboard handle to the arm/disarm unit has two levers. One lever is connected to the external control shaft through the push rod. The other lever is connected to the roller lever of the arm/disarm unit through the connection rod.

 (4)
 Intermediate Shaft The intermediate shaft includes the two shaft levers and the combined lever. One lever shaft is connected to the linkage of the Arm/Disarm unit through the link rod. The other shaft lever is connected to the release shaft through the connection rod.

 The combined lever contains the stop cam and the target lever. The stop cam limits the travel of the intermediate shaft. The target lever operates the proximity sensor of the Escape Slide-Warning System (circuit WN).
 H. Door Stop Assemblies and Door Guide Assemblies (Ref. Fig. 015, 016) The door stop assemblies include the adjustable stops and the related stop fittings. The adjustable stops are attached to each longeron of the door. The adjustable stops touch the stop fittings and take the load when the fuselage is pressurized during the flight. The stop fittings are attached to the door frame of the fuselage.
 The door guide assemblies contain the guide rollers with the related guide fittings as well as the roller guides with the related guide fittings.
 The roller guides touch the guide fittings when the door is moved inboards. This causes the door to move in the correct position of the fuselage opening.
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