(c)
Before you install the seals, make sure that the union is not damaged:
-discard the union if it has scratches or if the groove of the 0-ring is damaged.
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Installation of Swivel Plug-in Union and of O-Ring and Backup washer on Swivel Plug-in Union Figure 207/TASK 20-23-11-991-040- 12 (SHEET 1)
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Installation of Swivel Plug-in Union and of O-Ring and Backup washer on Swivel Plug-in Union Figure 207/TASK 20-23-11-991-040- 22 (SHEET 2)
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(2) Installation of the backup washer
(a)
Lightly lubricate the threads of the locknut with HYDRAULIC FLUIDS (Material No. 02-003).
(b)
Turn the locknut until it is on the second row of threads with the recess on the nose side of the union.
(c)
Align the bottom of the recess with the start of the threads.
(d)
Get the installation tool applicable to the diameter of the union and install it on the union.
(e)
Move the backup washer on the sleeve until the inner diameter touches the conical end of the sleeve.
NOTE : If you use a leather backup washer, the rough face must be
____ on the locknut recess side and the smooth face on the O-ring side.
(f)
Move the pusher on the sleeve until it touches the backup washer.
(g)
Gradually push the pusher until the backup washer goes into the recess of the locknut.
(h)
Remove the installation tool.
(i)
Get the knurled ring applicable to the diameter of the union.
(j)
Adjust and push the backup washer into the bottom of the locknut recess (hold the locknut so that it does not turn).
(k)
remove the knurled ring.
(l)
Make sure that the backup washer is correctly installed in the nut recess.
(3) Installation of the O-ring
(a) Lubrication of the O-ring
CAUTION : ONLY USE HYDRAULIC FLUID MATERIAL N. 02-003 TO
_______ LUBRICATE THE O-RING AND THE THREAD (O-RING SIDE) ON PLUG-IN FITTINGS. OTHER LUBRICANTS CAN CAUSE DAMAGE TO THE O-RING.
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1_ Imerse the O-ring in HYDRAULIC FLUIDS (Material No. 02-003)
for a minimum of a quarter of an hour.
2_ Lightly apply HYDRAULIC FLUIDS (Material No. 02-003) to the
conical end of the sleeve.
(b)
Move the O-ring on the sleeve until its inner diameter touches the conical end of the sleeve.
(c)
Move the pusher on the sleeve until it touches the O-ring.
(d)
Gradually push the pusher until the O-ring goes into the groove of the union.
(e)
Remove the installation tool.
(f)
Make sure that the O-ring is in the correct position without any torsion or damage.
Subtask 20-23-11-911-057
C. Installation of the Union
(1)
Lightly apply HYDRAULIC FLUIDS (Material No. 02-003) on the first row of threads of the union.
(2)
Turn the union and the locknut at the sametime until the backup washer comes into contact with the equipment.
NOTE : The union must turn freely in the equipment or manifold port.
____
(3)
Turn the union and the locknut at the same time a maximum of one turn to align the union with the pipe.
(4)
Connect and tighten the related pipe (Ref. TASK 20-23-11-911-001).
(5)
Hold the union with an open-ended spanner (Ref. TASK 20-21-12-911-001) and TORQUE the locknut to the applicable value.
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R 5. Close-up________
R Subtask 20-23-11-860-061
R A. Put the aircraft back to its initial configuration.
R (1) Pressurize the hydraulic reservoirs (Ref. TASK 29-14-00-614-002).
R (2) If necessary, fill the hydraulic reservoirs:
R - with a hand pump (Ref. TASK 12-12-29-611-001)
R - or with a hydraulic cart (Ref. TASK 12-12-29-611-002)
R (3) Pressurize the hydraulic systems:
R - for the Green system (Ref. TASK 29-10-00-863-001)
R - for the Yellow system (Ref. TASK 29-10-00-863-002)
R - for the Blue system (Ref. TASK 29-10-00-863-003).
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