52-36-00-991-003 Fig. 401
3. Job Set-up
__________ Subtask 52-36-00-010-052 R A. Get Access
(1) Make sure that the FWD or AFT cargo-compartment door (referred to as
cargo door) is fully opened and safetied with the support struts R (Ref. TASK 52-30-00-860-005).
(2) Open the access panel 134AR or 154AR to get access to the service panel of the applicable cargo door.
(3) Put the access platform in position below the opened cargo door. Subtask 52-36-00-865-054
B. Open, safety and tag this(these) circuit breaker(s):
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------121VU HYDRAULIC/HYD POWER/Y 3803GX N30 122VU DOORS/CARGO 1MJ T12 123VU Y HYD/ELEC/PUMP 3802GX AB06 123VU Y HYD/ELEC/ELEC PUMP/NORM 3801GX AB03
Subtask 52-36-00-860-055
C. Aircraft Maintenance Configuration
(1)
Depressurize the Yellow hydraulic system (Ref. TASK 29-10-00-864-002).
(2)
Depressurize the reservoir of the Yellow hydraulic system (Ref. TASK 29-14-00-614-001).
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(3)
Put a warning notice in the cockpit on the overhead panel 40VU to prevent the operation of the Yellow hydraulic system.
(4)
Put a warning notice on the ground service panel to prevent the operation of the Yellow hydraulic system.
(5)
Put a container below the hydraulic connections of the door actuator(s) to collect the hydraulic fluid.
4. Procedure
_________ Subtask 52-36-00-040-050
A. Deactivation of the Door Actuator(s)
(Ref. Fig. 401/TASK 52-36-00-991-003)
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)
Remove the flexible hoses from the defective door actuator as follows:
(a)
Loosen the union and remove the flexible hose (22) from port A of the door actuator (11).
(b)
Loosen the union and remove the flexible hose (21) from port B of the door actuator (11).
(c)
Install the blanking plugs on the open ends of the door actuator ports.
(d)
Install the pressure plugs on the open ends of the flexible hoses.
(2)
If necessary, remove the damaged door actuator as follows:
(a)
Remove the electrical connector (20) from the receptacle of the proximity switch.
(b)
Put blanking caps on the disconnected electrical connectors.
(c)
Remove the screw (7) , the washer (8), the nut (10) and disconnect the bonding jumper (9) from the bonding angle of the piston eye-end (6).
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Cargo Door Actuator
Figure 401/TASK 52-36-00-991-003
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(d)
Remove the screw (17) and the washer (18) and disconnect the bonding jumper (19) from the door actuator (11).
(e)
Remove and discard the cotter pin (5) from the nut (4).
(f)
Remove the nut (4), the washer (2) from the bolt (1).
(g)
Support the door actuator (16) and remove the bolt (1) with the washer (2) from the actuator attachment fitting (3).
(h)
Remove the piston eye-end (6) from the actuator attachment fitting (3).
(i)
Remove and discard the cotter pin (12) from the nut (13).
(j)
Remove the nut (13), the washer (14) from the bolt (16).
(k)
Support the door actuator (11) and remove the bolt (16) with the washer (14) from the actuator beam (15).
(l) Remove the door actuator (11) from the actuator beam (15).
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