(2)
Make sure that the Blue hydraulic system is depressurized and put it in the maintenance configuration. (Ref. TASK 29-00-00-864-001).
(3)
Make sure that the reservoir of the Blue hydraulic system is depressurized. (Ref. TASK 29-14-00-614-001).
(4)
Make sure that the warning notices are in position:
-In the cockpit on the hydraulic section 40VU of the overhead panel,
-On the ground service panel of the Blue hydraulic system.
(5)
Make sure that the access panel 197FB is open.
1EFF : ALL 1 29-34-11Page 414 1 1 May 01/00R 1 1 1CES 1
(6)
Make sure that the access platform is in position. Subtask 29-34-11-865-055
B.
Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------
49VU HYD/HYD PWR/B WARN/& CTL 2702GJ C12 121VU HYDRAULIC/LOW/LVL/IND 1832GQ N32 121VU HYDRAULIC/HYD/QTY/IND 1831GQ P35 123VU B HYD/ELEC PUMP 2701GJ AB09
4. Procedure
_________
(Ref. Fig. 401/TASK 29-34-11-991-001) Subtask 29-34-11-420-051
A. Installation of the Reservoir Pressure Switch
(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 switch and the port on the top of the reservoir.
(4)
Apply HYDRAULIC FLUIDS (Material No. 02-003) to the O-ring (3).
(5)
Install the O-ring (3) on the pressure switch (2).
(6)
Install the pressure switch (2) on the reservoir.
(7)
TORQUE the pressure switch (2) to between 1.21 and 1.32 m.daN (107.07 and 116.81 lbf.in).
(8)
Safety the pressure switch (2) with lockwire 0.8 mm (0.032 in.).
(9)
Make sure that the bonding jumper (5) and the area of the pressure switch (2) which it touches are clean.
(10)
Apply COMMON GREASE (Material No. 04-012) to the parts of the bonding jumper (5) and the pressure switch (2) which touch.
(11)
Connect the bonding jumper (5) to the pressure switch (2).
(12)
Install the bolt (7), the washer (6) and the nut (4). Tighten the nut (4).
(13)
Remove the blanking caps from the electrical connector (1) and the pressure switch (2).
(14)
Make sure that the electrical connectors are clean and in the correct condition.
(15)
Connect the electrical connector (1) and the pressure switch (2).
(16)
Apply STRUCTURE PAINTS (Material No. 16-003) to the connection of the bonding jumper (5) and the pressure switch switch (2).
Subtask 29-34-11-790-051
B. Leak Test of the Hydraulic Connections
(1)
Pressurize the reservoir of the Blue hydraulic system (Ref. TASK 29-14-00-614-002).
(2)
Apply SPECIAL MATERIALS (Material No. 05-004) to the connection of the pressure switch (2) and the reservoir and make sure that there are no leaks.
Subtask 29-34-11-865-056
C. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): 1831GQ, 1832GQ, 2701GJ, 2702GJ
Subtask 29-34-11-710-051
D. Do an operational test of the low air pressure warning (Ref. TASK 29-34-00-710-001).
5. Close-up
________ Subtask 29-34-11-860-057
A. Put the aircraft back to the serviceable condition.
(1)
Make sure that the work area is clean and clear of tool(s) and other items.
(2)
Close the access door 197FB.
(3)
Remove the access platform.
(4)
Remove the warning notices from the cockpit and the ground service panel of the Blue hydraulic system.
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