(d)
Make sure that the pressure relief valve of the swaging tool is set to open at 380 +17 -17 bar (5500 +250 -250 psi). Do not pressurize too high or too low. Operate the swaging tool with a hydraulic handpump or a hydraulic power source (push the remote air ON button). Keep the swaging tool in this position while you apply a hydraulic pressure of 380 +17 -17 bar (5500 +250 -250 psi). Remove the swaging tool from the fitting:
-release the pressure,
NOTE : If you do not release the pressure, the dies stay closed
____
and you cannot remove them.
-loosen the knurled nut and remove the power unit,
-remove the die holder and yoke assembly.
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Subtask 20-23-11-917-050
E. Check of the Tube Joint
(1)
You must reject the joint if the tube:
-goes too far into the fitting,
-does not go sufficiently far into the fitting.
(2)
Look at the joint:
-make sure that you can see a piece of the insertion mark.
(3)
Do an inspection of the joint with the applicable inspection gage. (Ref. Fig. 221/TASK 20-23-11-991-011, 222/TASK 20-23-11-991-012) The inspection gage must:
-contain all the segments around the diameter of the fitting,
-touch the end of the fitting with its shoulder. If the swaging is not correct, it is possible to swage the joint again, but not always.
-------------------------------------------------------------------------------| INDICATION | POSSIBLE PROBLEM | CORRECTIVE ACTION | -------------------------------------------------------------------------------| The fitting does | The swaging pressure is | Make sure that the | | not swage | out of tolerances: | hydraulic power supply | | correctly. | FOR TOOLS SERIES DLT: | and connections to the | | | - 10000 +250 -250 psi | tool are correct. | | | FOR TOOL SERIES D12000: | | | | - 5500 +250 -250 psi | | | | | | | | The swaging head is too | Use the correct swaging | | | large. | head. | | | | | | The gage does not | The swaging pressure is not | Do the swage again. | | go on top of the | correct. | | | external diameter | | | | of the swaged | | | | fitting. | | | | | | | | | The gage is on top of the | Turn the gage away from | | | flash marks. | the flash marks. | | | The dies and the walls of | Carefully remove the dies | | | the yoke and the die holder | from the head and clean | | | must be clean. | the dies and all parts of | | | | the head assembly. | | | | | | The shoulder of | You did not push the fitting| Do the swage again. | | the gage does not | sufficiently far into the | |
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Inspection Gage Figure 221/TASK 20-23-11-991-011
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Swaged Fitting Installation Figure 222/TASK 20-23-11-991-012
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-------------------------------------------------------------------------------| INDICATION | POSSIBLE PROBLEM | CORRECTIVE ACTION | -------------------------------------------------------------------------------| touch the end of | swaging head. | | | the fitting. | | | | | | | | You cannot see the| The insertion mark on the | Cut out the fitting. | | insertion mark or | tube was not aligned with | | | you can see all | the end of the fitting du-| | | the mark. | ring swaging. | | -------------------------------------------------------------------------------
NOTE : For any other malfunctions, contact your PERMASWAGE S.A.
____
supplier.
Subtask 20-23-11-860-065
F. Put the aircraft back to its initial configuration.
(1)
Pressurize the hydraulic reservoirs (Ref. TASK 29-14-00-614-002).
(2)
If necessary, fill the hydraulic reservoirs:
-with a hand pump (Ref. TASK 12-12-29-611-001) - or with a hydraulic cart (Ref. TASK 12-12-29-611-002)
(3)
Pressurize the hydraulic systems:
-
for the Green system (Ref. TASK 29-10-00-863-001)
-
for the Yellow system (Ref. TASK 29-10-00-863-002)
-
for the Blue system (Ref. TASK 29-10-00-863-003).
(4)
Make sure that there is no leakage in the repaired area.
(5)
Bleed the related hydraulic system:
(a)
For the Green system:
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