B. Install one or two satisfactory replacement door actuator(s) (Ref. TASK 52-36-18-400-001).
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TASK 52-36-00-040-002
Deactivation of the Hand Pump
1. Reason for the Job
__________________
Refer to the MMEL TASK: 52-30-03
R Doors - Cargo
R Hand pump (FAA Only)
2. Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------
REFERENCE QTY DESIGNATION
-------------------------------------------------------------------------------
No specific blanking plugs
No specific circuit breaker(s) safety clip(s)
No specific container
No specific warning notices
No specific access platform 1.76 m (5 ft. 9 in.)
B. Referenced Information
-------------------------------------------------------------------------------
REFERENCE DESIGNATION
-------------------------------------------------------------------------------
12-12-29-611-001 Fill the Hydraulic Fluid Reservoir with a Hand Pump 29-00-00-910-002 Safety Procedures of the Hydraulic System 29-10-00-863-002 Pressurize the Yellow Hydraulic System 29-10-00-864-002 Depressurize the Yellow Hydraulic System 29-14-00-614-001 Depressurization of the Hydraulic Reservoirs 29-14-00-614-002 Pressurization of the Hydraulic Reservoirs through
the Ground Connector 52-30-00-860-002 Close the FWD or AFT Cargo-Compartment Door with the Yellow Electric Pump 52-36-00-991-002 Fig. 402
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3. Job Set-up
__________
Subtask 52-36-00-010-054
A. Get Access
R (1) Put the access platform in position below the Yellow ground service R panel.
(2)
Open the access door 198CB to get access to the hand pump.
(3)
Remove the access panel 198DB to get access to the hydraulic connections of the hand pump.
Subtask 52-36-00-865-056
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 52-36-00-860-057
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).
(3)
Put 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.
(4)
Obey the hydraulic safety procedures (Ref. TASK 29-00-00-910-002).
(5)
Push the PTU P/B switch on the overhead panel 40VU to prevent the unwanted operation of the power transfer unit.
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(6) Put a container below the hydraulic connections of the hand pump to collect hydraulic fluid. _________
4. Procedure
Subtask 52-36-00-040-051
A. Deactivation of the Handpump
(Ref. Fig. 402/TASK 52-36-00-991-002)
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)
Loosen the union nut (2) from the union (3) and carefully disconnect the suction line (1) from the port "C" of the hand pump (4).
(2)
Loosen the union nut (6) from the union (5) and carefully disconnect the pressure line (7) from the port "A" of the hand pump (4).
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