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 C. Expendable Parts
 -------------------------------------------------------------------------------
FIG.ITEM |DESIGNATION |IPC-CSN -------------------------------------------------------------------------------
2 3 5 6  seals back-up rings back-up rings packings  32-31-03 36 -15032-31-03 36 -14032-31-03 36 -13032-31-03 36 -120
 D. Referenced Information
 -------------------------------------------------------------------------------
REFERENCE  DESIGNATION
 -------------------------------------------------------------------------------
R R R R  12-12-29-611-001 20-23-21-911-001 24-41-00-862-002 29-00-00-910-002 29-10-00-864-001 29-14-00-614-001 29-23-00-860-001 29-23-00-860-002 32-00-00-860-001 32-00-00-860-002 32-12-00-010-001 32-12-00-410-001 32-31-00-710-002 32-51-00-720-003  Fill the Hydraulic Fluid Reservoir with a Hand PumpRemoval/Installation of the Bobbins from their Housings and Installation of O-rings, Square Seals, and Back-up Rings on the BobbinsDe-energize the Aircraft Electrical Circuits Supplied from the External PowerSafety Procedures of the Hydraulic SystemDepressurize the Green Hydraulic SystemDepressurization of the Hydraulic ReservoirsDisconnection of the Isolation Coupling of the Power Transfer Unit (PTU)Connection of the Isolation Coupling of the Power Transfer Unit (PTU) Flight Configuration Precautions with Electrical Power Ground Configuration after Flight Configuration with Electrical PowerOpen the Main Gear Doors for AccessClose the Main Gear Doors after AccessOperational Test of the Landing Gear DoorsFunctional Test of the Nose Wheel Steering with the Handwheel.

 1EFF : ALL 1 32-31-19Page 407 1 1 Feb 01/05 1 1 1CES 1 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------

51-75-13-916-002 Repair to a layer of Corrosion Preventive Compound 32-31-19-991-001-A Fig. 401
 3. Job Set-up
__________
 Subtask 32-31-19-860-051
 A. Aircraft Maintenance Configuration
 (1)
 Make sure that the PTU isolation coupling is disconnected (Ref. TASK 29-23-00-860-001).

 (2)
 Make sure that the aircraft electrical circuits are de-energized (Ref. TASK 24-41-00-862-002) or the flight configuration precautions were obeyed (Ref. TASK 32-00-00-860-001).

 (3)
 Make sure that the Green hydraulic system is depressurized (Ref. TASK 29-10-00-864-001).

 (4)
 Make sure that the reservoir of the Green hydraulic system is depressurized (Ref. TASK 29-14-00-614-001).

 (5)
 Make sure that the warning notices are in position to tell persons not to pressurize the Green hydraulic system: - on the panel 40VU in the cockpit, - on the ground panel of the Green hydraulic system.

 Subtask 32-31-19-865-052
 B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged
 -------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------49VU L/G/LGCIU/SYS1/NORM 1GA C09 121VU HYDRAULIC/LGCIU/SYS2 2GA Q35 121VU HYDRAULIC/LGCIU/SYS1/GRND SPLY 52GA Q34 121VU HYDRAULIC/G HYD/PUMP ENG1/CTL 1701GK R35 121VU HYDRAULIC/G HYD/PUMP ENG1/MONG 1702GK R34
 1EFF : ALL 1 32-31-19Page 408 1 1 Feb 01/05R 1 1 1CES 1

 Subtask 32-31-19-560-050-A
 C. Preparation for Installation
 (1)
 Clean the component interface and/or the adjacent area.

 (2)
 Do an inspection of the component interface and/or the adjacent area.

 (3)
 Make sure that the parts retained from the removed component are clean and in the correct condition.

 (4)
 Obey the hydraulic safety procedures (Ref. TASK 29-00-00-910-002).

 (5)
 Apply HYDRAULIC FLUIDS (Material No. 02-003), HYDRAULIC FLUIDS (Material No. 02-003A), HYDRAULIC FLUIDS (Material No. 02-003B), HYDRAULIC FLUIDS (Material No. 02-003C) or HYDRAULIC FLUIDS (Material No. 02-003D) to the new packings (6) and the new back-up rings (5).

 (6)
 If removed apply HYDRAULIC FLUIDS (Material No. 02-003), HYDRAULIC FLUIDS (Material No. 02-003A), HYDRAULIC FLUIDS (Material No. 02-003B), HYDRAULIC FLUIDS (Material No. 02-003C) or HYDRAULIC FLUIDS (Material No. 02-003D) to the new seals (2) and the new back-up rings (3).

 4. Procedure
_________
 Subtask 32-31-19-420-051-A

 A. Installation of the Valves (1) and (7) on the Manifold Assy (8) (Ref. Fig. 401/TASK 32-31-19-991-001-A)
 (1) Remove the blanking plugs.
 (2) If removed install the new back-up rings (3) and the new seals (2) on R the bobbins (4) and install the bobbins (4) in the manifold (8) R (Ref. TASK 20-23-21-911-001).
　
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