**ON A/C 001-001, 051-052,
29-11-21-991-001 Fig. 401
R **ON A/C 002-049, 053-099, 101-149, 151-199, 201-299, 301-399, 401-499,
29-11-21-991-001-A Fig. 401A
**ON A/C ALL
3. Job Set-up
__________
Subtask 29-11-21-860-053
A. Aircraft Maintenance Configuration
WARNING : OBEY THE HYDRAULIC SAFETY PROCEDURES.
_______
(1)
Obey the hydraulic safety procedures (Ref. TASK 29-00-00-910-002).
(2)
Make sure that the warning notices are in position to tell persons not to pressurize the Green hydraulic system:
-in the cockpit on the hydraulic section 40VU of the overhead panel, - on the ground service panel of the Green hydraulic system.
(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 left main door of the main gear is open (Ref. TASK 32-12-00-010-001).
(6)
Make sure that the access platform is in position at the left door of the main gear.
(7)
Make sure that the isolation coupling of the Power Transfer Unit (PTU) is disconnected (Ref. TASK 29-23-00-860-001).
Subtask 29-11-21-865-051
B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------121VU HYDRAULIC/SOL VALVES/G/Y/B/LEAK/TST 1881GP N35 121VU HYDRAULIC/G HYD/PUMP ENG1/CTL 1701GK R35 121VU HYDRAULIC/G HYD/PUMP ENG1/MONG 1702GK R34
4. Procedure
_________
**ON A/C 001-001, 051-052,
(Ref. Fig. 401/TASK 29-11-21-991-001)
R **ON A/C 002-049, 053-099, 101-149, 151-199, 201-299, 301-399, 401-499,
(Ref. Fig. 401A/TASK 29-11-21-991-001-A) **ON A/C ALL
Subtask 29-11-21-420-050
A. Installation of the Pressure Gage
(1)
Clean the component interface and/or the adjacent area.
(2)
Do an inspection of the component interface and/or the adjacent area.
(3)
Remove the blanking plugs from the pressure gage (2) and the adapter (4).
(4)
Apply HYDRAULIC FLUIDS (Material No. 02-003) to the threads of the pressure gage connection.
(5)
Install the pressure gage (2) on the adapter (4). NOTE : Make sure that you can clearly read the pressure gage when it
____
is installed.
(6)
TORQUE the nut (3) to between 1.54 and 1.65 m.daN (11.35 and 12.16 lbf.ft).
(7)
Safety the nut with lockwire, corrosion-resistant steel dia 0.8 mm
(0.032
in.). Subtask 29-11-21-860-054
B.
Preparation for Test
(1)
Fill the accumulator with nitrogen (Ref. TASK 12-14-29-614-001).
(2)
Remove the warning notice(s).
(3)
Pressurize the reservoir of the Green hydraulic system (Ref. TASK 29-14-00-614-002).
(4)
Make sure that the fluid level in the reservoir of the Green hydraulic system is correct. Add fluid as necessary (Ref. TASK 12-12-29-611-001) or (Ref. TASK 12-12-29-611-002).
(5)
Pressurize the Green hydraulic system (Ref. TASK 29-10-00-863-001).
Subtask 29-11-21-790-050
C. Test
(1)
Apply SPECIAL MATERIALS (Material No. 05-004) to the connection of the pressure gage (2) and the adapter (4) and make sure that there are no leaks.
(2)
Make sure that the pressure gage (2) shows 3000 +100 -100 psi.
5. Close-up
________ Subtask 29-11-21-860-055
A. Put the aircraft back to the serviceable condition.
(1)
Connect the isolation coupling of the Power Transfer Unit (PTU) (Ref. TASK 29-23-00-860-002).
(2)
Make sure that the work area is clean and clear of tool(s) and other items.
(3)
Remove the access platform(s).
(4)
Close the left main door of the main gear (Ref. TASK 32-12-00-410-001).
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