(2)
 Hold the air relief valve (2) and disconnect the union nut (1).

 (3)
 Remove the air relief valve (2) and discard the O-ring (3).

 (4)
 Install the blanking plugs on the open connections.

 Pressure Relief Valve
 Figure 401/TASK 29-14-17-991-001
 1EFF :  ALL  1  29-14-17 Page 404 
1  1  Feb 01/98
 1  1
 1CES  1

 TASK 29-14-17-400-001
 Installation of the Air Relief Valve of the Green Hydraulic System (1005GM)
 WARNING : OBEY THE HYDRAULIC SAFETY PROCEDURES.
_______
 WARNING : MAKE SURE THAT THE GROUND SAFETY-LOCKS ARE IN POSITION ON THE LANDING
_______
 GEAR.

 1. Reason for the Job
__________________
 Self Explanatory
 2. Job Set-up Information
______________________
 A. Fixtures, Tools, Test and Support Equipment
 -------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific warning notices
 No specific access platform 2.8 m (9 ft. 2 in.)
 No specific Torque Wrench : range 0.20 to 3.60 m.daN

 (2.00
 to 26.00 lbf.ft) No specific Torque Wrench : range 1.00 to 10.00 m.daN

 (8.00 to 75.00 lbf.ft)

 B.
 Consumable Materials

 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
No specific  lockwire 0.8 mm (0.032 in.)
R Material No. 02-003  F NSA 307110 TYPE 4 HYDRAULIC FLUID (PHOSPHATE ESTER BASE) (Ref. 20-31-00)
 Material No. 05-004  USA MIL-L-25567 TYPE I
 OXYGEN LEAK DETECTOR (Ref. 20-31-00)

 C. Expendable Parts -------------------------------------------------------------------------------
FIG.ITEM --------- |DESIGNATION ---------------------------------------- |IPC-CSN------------------------------
3  O-ring  29-14-03 10 -020
 D. Referenced Information
 ------------------REFERENCE  -------------------------------DESIGNATION ------------------------------

-------------------------------------------------------------------------------
29-00-00-864-001 Put the Related Hydraulic System in the Depressurized
 Configuration before Maintenance Action 29-00-00-910-002 Safety Procedures of the 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 32-12-00-010-001 Open the Main Gear Doors for Access 32-12-00-410-001 Close the Main Gear Doors after Access 29-14-17-991-001 Fig. 401
 3. Job Set-up
__________
 Subtask 29-14-17-860-054
 A. Aircraft Maintenance Configuration
 (1)
 Make sure that the warning notices are in position to tell persons not to pressurize the hydraulic system:

 -In the cockpit on the hydraulic section 40VU of the overhead panel,
 -On the ground service panel of the Green hydraulic system.

 (2)
 Obey the hydraulic safety procedures (Ref. TASK 29-00-00-910-002).

 (3)
 Make sure that the Green hydraulic system is depressurized and put it in the maintenance configuration. (Ref. TASK 29-00-00-864-001).

 (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 right hand door of the main gear is open (Ref. TASK 32-12-00-010-001).

 (6)
 Make sure that the access platform is in position. Subtask 29-14-17-865-051

 B.
 Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged

 -------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------
121VU HYDRAULIC/LOW/LVL/IND 1832GQ N32 121VU HYDRAULIC/HYD/QTY/IND 1831GQ P35 121VU HYDRAULIC/G HYD/PUMP ENG1/CTL 1701GK R35 121VU HYDRAULIC/G HYD/PUMP ENG1/MONG 1702GK R34
 4. Procedure
_________
 (Ref. Fig. 401/TASK 29-14-17-991-001) Subtask 29-14-17-420-050
 A. Installation of the Air Relief Valve 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.
　
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