(c)
Disconnect the locknut and the washer (if installed) from the bulkhead fitting.
(d)
Remove the bulkhead fitting from the bulkhead.
(e)
Install the blanking caps on the bulkhead fitting.
Example for a Hydraulic Bulkhead Fitting Installation
Figure 202/TASK 29-00-00-991-014
(2) Install the bulkhead fitting:
(a)
Clean the component interface and/or the adjacent area.
(b)
If necessary, remove the old sealant with a nonmetallic scraper from the bulkhead fitting and from the bulkhead.
(c)
Do an inspection of the component interface and/or the adjacent area.
(d)
Make sure that there is no:
-corrosion
-deformation
- or any other damage
in the installation area.
(e)
Make sure that the hydraulic line end-fittings are serviceable.
(f)
Apply the release agent SPECIAL MATERIALS (Material No. 05-013A) or a separating foil on the bulkhead.
(g)
Apply the SEALANTS (Material No. 09-013) under the nut of the bulkhead fitting and the washer (if installed).
(h)
Remove the blanking caps from the bulkhead fitting.
(i)
Install the bulkhead fitting in the bulkhead with the washer (if installed) and the locknut.
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.
(j)
TORQUE the locknut to the correct torque value (Ref. TASK 20-21-12-911-001).
(k)
Apply the HYDRAULIC FLUIDS (Material No. 02-003) to the threads of the bulkhead fittings.
(l)
Remove the blanking plugs from the union nuts.
(m)
Connect the union nuts with the bulkhead fitting.
(n)
TORQUE the union nuts to the correct torque value (Ref. TASK 20-21-12-911-001).
(o)
Let the sealant dry.
(p)
Apply the STRUCTURE PAINTS (Material No. 16-021A) on the sealant layer.
(3)
Make sure that the level of the fluid in the reservoir of the applicable hydraulic system is correct. Add fluid as necessary (Ref. TASK 12-12-29-611-001) or (Ref. TASK 12-12-29-611-002). (Ref.
(4)
Pressurize the reservoir of the applicable hydraulic system (Ref. TASK 29-14-00-614-002).
(5)
Pressurize the applicable hydraulic system (Ref. TASK 29-10-00-863-001) or (Ref. TASK 29-10-00-863-002) or (Ref. TASK 29-10-00-863-003).
(6)
Make sure that there are no hydraulic leaks.
(7)
Do the applicable bleeding procedure:
-
(Ref. TASK 29-00-00-870-001)
-
(Ref. TASK 29-00-00-870-002)
-
(Ref. TASK 29-00-00-870-003)
-
(Ref. TASK 29-00-00-870-004)
-
(Ref. TASK 29-00-00-870-005)
-
(Ref. TASK 29-00-00-870-006)
-
(Ref. TASK 29-00-00-870-007)
-
(Ref. TASK 29-00-00-870-008)
-
(Ref. TASK 29-00-00-870-009)
(8)
Mark the tightened union nuts and the locknut with a red line (Ref. TASK 20-23-22-910-001).
5. Close-up
________
Subtask 29-00-00-910-058
A. Put the aircraft back to the serviceable condition.
(1)
Remove the container.
(2)
Make sure that the work area is clean and clear of tool(s) and other items.
HYDRAULIC POWER - GENERAL - ADJUSTMENT/TEST
___________________________________________
TASK 29-00-00-710-001
Integrity Test of the Hydraulic Power
WARNING : MAKE SURE THAT THE GROUND SAFETY-LOCKS ARE IN POSITION ON THE LANDING
_______ GEAR.
WARNING : PUT THE SAFETY DEVICES AND THE WARNING NOTICES IN POSITION BEFORE YOU
_______ START A TASK ON OR NEAR:
-
THE FLIGHT CONTROLS
-
THE FLIGHT CONTROL SURFACES
-
THE LANDING GEAR AND THE RELATED DOORS
-COMPONENTS THAT MOVE. WARNING : MAKE SURE THAT THE TRAVEL RANGES OF THE FLIGHT CONTROL SURFACES ARE
_______ CLEAR BEFORE YOU PRESSURIZE/DEPRESSURIZE A HYDRAULIC SYSTEM.
WARNING : MAKE SURE THAT THE TRAVEL RANGES OF THE FLIGHT CONTROLS ARE CLEAR.
_______ MOVEMENT OF FLIGHT CONTROLS CAN CAUSE INJURY TO PERSONS AND/OR DAMAGE.
WARNING : OBEY THE HYDRAULIC SAFETY PROCEDURES.
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