-loosen the knurled nut and remove the power unit,
-remove the die holder and yoke assembly.
Subtask 20-23-38-220-050
E. Do a 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. 223/TASK 20-23-38-991-014, 227/TASK 20-23-38-991-013) 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.
Table and Inspection Gage
Figure 227/TASK 20-23-38-991-013
1EFF : ALL 1 20-23-38 Page 252
1 1 May 01/98
1 1
1CES 1
-------------------------------------------------------------------------------| 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 flash | Turn the gage away from | | | 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 | | | 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 20-23-38-790-053
F. Do the Leak Check of the Repaired Tube.
(1)
Do the leak test of the potable water lines.
(a)
Remove the warning notice(s).
(b)
Fill the potable water system with water (Ref. TASK 12-15-38-613-001)
(c)
Pressurize the potable water system (Ref. TASK 38-10-00-614-001)
(d)
Examine the repaired tubing for leaks.
(2)
If there is leakage, slowely and continuously increase the torque value to the maximum authorized (maximum test value) until you stop the leak.
NOTE : Leaks are not permitted.
____
(a)
Remove the container.
(b)
Install the potable-water de-icing heater elements as necessary (Ref. TASK 30-73-53-400-001).
(3) Do the leak check of the air supply lines.
(a)
Examine the repaired air tubing for leaks (Ref. TASK 38-10-00-614-001).
(b)
If there is leakage, slowely and continuously increase the torque value to the maximum authorized (maximum test value) until you stop the leak.
NOTE : Leaks are not permitted.
____ Subtask 20-23-38-410-061
G. Close Access
(1)
Make sure that the work area is clean and clear of tool(s) and other items.
(2)
Install/close the removed/opened access panels/doors.
5. Close-up
________
Subtask 20-23-38-670-052
A. Do the Sterilization of the Potable Water Tank and Distribution System (Ref. TASK 38-10-00-670-002) .
Subtask 20-23-38-410-053
B. Close Access
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