B. Aircraft Maintenance Configuration
(1)
Make sure that the emergency exit door (referred to as door) is opened as required (Ref. TASK 52-22-00-010-001).
(2)
Make sure that the special precaution of the door damper and emergency operation cylinder is completed (Ref. TASK 52-22-00-860-003).
(3)
Make sure that the access platform is in position below the partly opened door (Ref. TASK 52-22-00-010-001).
(4)
Make sure that the door lining is removed (Ref. TASK 25-23-47-000-012) or (Ref. TASK 25-23-47-000-013).
4. Procedure
_________ Subtask 52-22-21-910-053
A. Preparation for Installation
(1)
Make sure that the parts retained from the removed component are clean and in the correct condition.
(2)
Do an inspection of the component interface and/or the adjacent area.
(3)
Make sure that all bushes are in the correct condition.
(4)
Apply COMMON GREASE (Material No. 04-004) to all surfaces of parts which move.
Subtask 52-22-21-420-062
B. Installation of the Torsion Bar Assembly
(Ref. Fig. 408/TASK 52-22-21-991-007)
(1) Install the pretension sleeve (371) as follows:
(a) Put the stop (390) in position to the door structure and safety it with the retaining ring (391).
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(b) If required, put the pretension lever (356) in the correct position to the splined area of the pretension sleeve (371).
NOTE : Make sure that the punch mark of the pretension lever
____ (356) is two splines from the notch of the pretension sleeve (371) in the counterclockwise direction.
(c)
Attach the pretension lever (356) with the bolt (357) and the nut
(355) to the pretension sleeve (371).
(d)
Put the pretension sleeve (371) together with the pretension lever (356) in position to the door structure.
(e)
Install the washers (368), (369) and (370) to the pretension sleeve (371).
NOTE : Obey the sequence and the quantity of the washers (368),
____
(369) and (370) as written down before.
(f)
Move the pretension sleeve ((371) in the rear direction until it engages with the door structure.
(g)
Put the flange bearing (352) in position to the door member and make sure that it engages with the pretension sleeve (371).
(h)
Attach the flange bearing (352) with the bolts (353) and the nuts
(351) to the door structure.
(2) Install the torsion tube (372) as follows:
(a)
If removed, put the flange bearing (389) in position to the door structure and attach it with the bolts (394) and the nuts (395).
(b)
Put the torsion lever (381) in position and move the torsion tube
(372) forward until the torsion lever (381) is on its splined position.
NOTE : Make sure that the punch mark on torsion lever (381)
____ aligns with the notch of the torsion tube (372).
(c)
Make sure that the torsion lever (381) is in the correct position and install the screw (396) and the new lock washer (397).
(d)
Tighten the screw (396) and safety it with the lock washer (397).
(e)
Move the torsion tube (372) in position to the door structure until it engages with the structural bearing of the door frame.
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(3)
Connect the connection link (386) with the torsion lever (381) as follows:
(a)
If removed, install the bush (387) to the fork-end of the torsion lever (381).
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