35-13-51Page 401
3. Job Set-up
__________ Subtask 35-13-51-010-050
A. Get Access
(1) Put the access platform in position at the access door 812.
(2) Open the access door 812. Subtask 35-13-51-860-050
B. Aircraft Maintenance Configuration
(1)
Energize the electrical circuits (Ref. TASK 24-41-00-861-002).
(2)
Close the valve of the oxygen cylinder/valve assembly (5750HM).
(3)
Put a warning notice to tell persons not to open the valve of the oxygen cylinder assembly.
Subtask 35-13-51-870-050
C. Bleed the oxygen system:
(1)
In the cockpit, on the panel 21VU, push the OXYGEN/CREW SUPPLY pushbutton switch. The OFF legend goes off.
(2)
On an oxygen-mask stowage box, operate the PRESS TO TEST AND RESET control slide a sufficient number of times to make the system empty.
(3)
On the panel 21VU, release the OXYGEN/CREW SUPPLY pushbutton switch. The OFF legend comes on.
Subtask 35-13-51-865-050
D. Open, safety and tag this(these) circuit breaker(s):
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------49VU OXYGEN/CREW/OXY/SPLY 1HT HA01
EFF : ALL
35-13-51Page 402
4. Procedure
_________
(Ref. Fig. 401/TASK 35-13-51-991-001) Subtask 35-13-51-020-050
A. Removal of the LP Oxygen-Supply Solenoid-Valve (3HT)
(1)
Disconnect the electrical connector (9) from the LP oxygen-supply solenoid-valve (6).
(2)
Put a blanking cap on the disconnected electrical connector (9).
(3)
Disconnect the pipe (8) and discard the bush (7).
(4)
Put a blanking plug on the pipe (8).
(5)
Disconnect the pipe (5) and discard the bush (4).
(6)
Put a blanking plug on the pipe (5).
(7)
Remove the screws (2), the washers (3) and the solenoid valve (6).
EFF : ALL
35-13-51Page 403
LP Oxygen-Supply Solenoid-Valve
Figure 401/TASK 35-13-51-991-001
EFF : ALL 35-13-51 Page 404
Feb 01/98
CES
TASK 35-13-51-400-001
Installation of the LP Oxygen-Supply Solenoid-Valve (3HT)
1. Reason for the Job
__________________
Self Explanatory
2. Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific blanking plug
No specific warning notice
No specific access platform 2 m (6 ft. 7 in.)
No specific Torque Wrench : range 0.20 to 3.60 m.daN
(2.00 to 26.00 lbf.ft)
B. Consumable Materials
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
Material No. 05-003B USA MIL-G-27617
OXYGEN SYSTEM LUBRICANT (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 -------------------------------------------------------------------------------
4 bush 35-12-01 01 -010 R 7 bush 35-12-01 01 -010 R
EFF : ALL
35-13-51Page 405
D. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
24-41-00-861-002 Energize the Aircraft Electrical Circuits from the External Power 24-41-00-862-002 De-energize the Aircraft Electrical Circuits Supplied from the External Power 35-13-51-991-001 Fig. 401
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