3. Job Set-up
__________ Subtask 32-51-22-010-050
A. Get Access
(1)
Open the FWC cargo door (Ref. TASK 52-30-00-860-001).
(2)
Put the ACCESS PLATFORM 2M (6 FT) in position.
(3) Open the panel 131CC. Subtask 32-51-22-860-050
B. Aircraft Maintenance Configuration
WARNING : OBEY THE HYDRAULIC SAFETY PROCEDURES.
_______
(1)
Obey the hydraulic safety procedures (Ref. TASK 29-00-00-910-002).
(2)
Depressurize the Yellow hydraulic system (Ref. TASK 29-10-00-864-002):
-
do not connect the PTU isolation coupling
-
do not close the right MLG door.
(3)
Put a WARNING NOTICE in position to tell persons not to pressurize the Yellow hydraulic system: - on the panel 40VU in the cockpit - on the ground service panel of the Yellow hydraulic system.
(4)
Depressurize the reservoir of the Yellow hydraulic system (Ref. TASK 29-14-00-614-001).
(5)
Put the CONTAINER 5 L(1 1/2 USGAL) below the safety valve to collect the hydraulic fluid leakage.
1EFF : 401-499, 1 32-51-22Page 402 1 1 Aug 01/05 1 1 1CES 1 Subtask 32-51-22-865-050
C. Open, safety and tag this(these) circuit breaker(s):
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------49VU ABCU &/Y BRK/PRESS IND 61GG C10 121VU HYDRAULIC/BRAKING AND STEERING/SYS2/SPLY 4GG M36 121VU HYDRAULIC/BRAKING AND STEERING/SYS2/CTL 3GG M35 121VU HYDRAULIC/BRAKING AND STEERING/SYS1/CTL 1GG M34 121VU HYDRAULIC/BRAKING AND STEERING/SYS1/IND AND/SPLY 2GG M33 121VU HYDRAULIC/PARK BRK/CTL/STBY 71GG N37 121VU HYDRAULIC/PARK BRK/CTL/NORM 70GG N36 121VU HYDRAULIC/HYD POWER/Y 3803GX N30 121VU HYDRAULIC/Y HYD/PUMP ENG2/MONG 3700GD Q37 121VU HYDRAULIC/Y HYD/PUMP ENG2/CTL 3701GD Q36 123VU Y HYD/ELEC/PUMP 3802GX AB06 123VU Y HYD/ELEC/ELEC PUMP/NORM 3801GX AB03
4. Procedure_________
Subtask 32-51-22-020-050
A. Removal of the Check Valve 2902GM
(Ref. Fig. 401/TASK 32-51-22-991-001)
WARNING : OBEY THE HYDRAULIC SAFETY PROCEDURES.
_______
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.
CAUTION : BE CAREFUL WHEN YOU REMOVE THE CHECK VALVE AS THE HYDRAULIC
_______
FLUID WILL FLOW OUT.
(1)
Loosen the two screws (1) for easy removal of the check valve 2902GM.
(2)
Disconnect the coupling nuts (2) and (4).
(3)
Remove the check valve (3).
(4)
Put blanking plugs on the disconnected line ends.
(5)
Remove the container and discard the hydraulic fluid correctly.
1EFF : 401-499, 1 32-51-22Page 403 1 1 Aug 01/05 1 1 1CES 1
Check Valve 2902GM on Frame 34
Figure 401/TASK 32-51-22-991-001
1EFF : 401-499, 1 32-51-22 Page 404
1 1 Aug 01/05
1 1
1CES 1
TASK 32-51-22-400-001
Installation of the Check Valve 2902GM
WARNING : OBEY THE MANUFACTURER'S INSTRUCTIONS WHEN YOU USE THIS/THESE
_______ MATERIAL/S. USE PROTECTIVE CLOTHING, RUBBER GLOVES AND A MASK.
WARNING : MAKE SURE THAT ALL THE CIRCUITS IN MAINTENANCE ARE ISOLATED BEFORE
_______ YOU SUPPLY ELECTRICAL POWER TO THE AIRCRAFT.
WARNING : PUT THE SAFETY DEVICES AND THE WARNING NOTICES IN POSITION BEFORE YOU
_______ START A TASK ON OR NEAR:
-
THE FLIGHT CONTROLS
-
THE FLIGHT CONTROL SURFACES
-
THE LANDING GEAR AND THE RELATED DOORS
-COMPONENTS THAT MOVE.
WARNING : OBEY THE HYDRAULIC SAFETY PROCEDURES.
_______
1. Reason for the Job
__________________
Self Explanatory
2. Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------REFERENCE QTY DESIGNATION
-------------------------------------------------------------------------------
No specific 1 ACCESS PLATFORM 2M (6 FT)
No specific 1 CONTAINER 5 L(1 1/2 USGAL)
No specific 2 WARNING NOTICE
No specific Torque Wrench : range 0.20 to 3.60 m.daN
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