(2)
Make sure that the Yellow hydraulic system is depressurized and put it in the maintenance configuration. (Ref. TASK 29-00-00-864-001).
(3)
Depressurize the reservoir of the Yellow hydraulic system (Ref. TASK 29-14-00-614-001).
(4)
Disconnect the isolation coupling of the Power Transfer Unit (PTU) (Ref. TASK 29-23-00-860-001).
(5)
Put the warning notices in position to tell persons not to pressurize the Yellow hydraulic system:
-In the cockpit on the hydraulic section 40VU of the overhead panel,
-On the ground service panel of the Yellow hydraulic system.
(6)
Put the container below the hydraulic connections of the door actuator to collect the hydraulic fluid.
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4. Procedure
_________ (Ref. Fig. 401/TASK 52-36-18-991-001) Subtask 52-36-18-020-050
A. Removal of the Door Actuator CAUTION : USE A SECOND WRENCH TO APPLY COUNTERTORQUE TO THE UNION WHEN
_______ YOU DISCONNECT/CONNECT HYDRAULIC LINES ON UNIONS. IF YOU USE THE SECOND WRENCH, YOU WILL NOT LOOSEN OR TIGHTEN THE UNION TOO MUCH.
(1)
Disconnect the electrical connector (27) from the door actuator (16) as follows:
(a)
Remove the electrical connector (27) from the receptacle of the proximity switch.
(b)
Put blanking caps on the disconnected electrical connectors.
(2)
Remove the bonding jumpers (14) and (19) from the door actuator (16) as follows:
(a)
Remove the screw (12) , the washer (13), the nut (15) and disconnect the bonding jumper (14) from the bonding angle of the eye-end (10).
(b)
Remove the screw (17) and the washer (18) and disconnect the bonding jumper (19) from the door actuator (16)
(3)
Disconnect the hydraulic connections from the door actuator (16) as follows:
(a)
Loosen the union and remove the flexible hose (29) from port A of the door actuator (16).
(b)
Loosen the union and remove the flexible hose (28) from port B of the door actuator (16).
(c)
Install blanking plugs in the open ports and blanking caps on the flexible hoses (28) and (29).
(4)
Disconnect the door actuator (16) from the cargo door structure as follows:
(a) Remove and discard the cotter pin (1) from the nut (2).
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FWD/AFT Cargo Door Actuator
Figure 401/TASK 52-36-18-991-001
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1 1 Feb 01/98
1 1
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(b)
Remove the nut (2), the washer (3) from the bolt (5).
(c)
Hold the door actuator (16) and remove the bolt (5) with the washer (3) from the actuator attachment fitting (4).
(d)
Remove the eye-end (10) from the actuator attachment fitting (4).
(e)
If required, remove the bushes (9) and (11) from the actuator attachment fitting (3).
(5)
Disconnect the door actuator (16) from the fuselage structure as follows.
(a)
Remove and discard the cotter pin (26) from the nut (25).
(b)
Remove the nut (25), the washer (23) from the bolt (22).
(c)
Hold the door actuator (16) and remove the bolt (22) with the washer (23) from the actuator beam (24).
(d)
Remove the door actuator (16) from the actuator beam (24).
(e)
If required, remove the bushes (20) and (21) from the actuator beam (24).
(6)
Measure the distance between the eye-ends of the removed door actuator (16).
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Installation of the Door Actuator 2502MJ/2503MJ/2505MJ/2506MJ
WARNING : MAKE SURE THAT THE TRAVEL RANGES OF THE FLIGHT CONTROL SURFACES ARE
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