Dimension Acceptance Criteria for NSA 855034 Sleeves
Figure 216/TASK 20-23-38-991-052
Table of Dimensions Acceptane Criteria for NSA 855034P Unions
Figure 217/TASK 20-23-38-991-026
(2) If there are marks on the tube, measure the depth of these marks.
NOTE : You can possibly see two types of marks on the tube after the
____
swaging:
-circular marks behind the sleeve thimble-end
-contact marks along the jaw of the die.
(a)
Make sure that the circular marks are not more than 0.05 mm (0.0019 in.).
(b)
Make sure that the contact marks are not more than 10 % of the thickness of the wall.
Subtask 20-23-38-780-050
H. Do the Pressure Test of the Tube
(1)
Connect the HARRISON sleeve and union of the tube and TORQUE it to the normal value. (Ref. Fig. 218/TASK 20-23-38-991-027)
(2)
Pressurize the tube to an operational pressure.
(3)
If there is leakage, slowly and continuously increase the torque value to the maximmum authorized (maximum test value) until you stop the leak.
(4)
Make sure that there is no leakage.
NOTE : Leakage is not permitted.
____
5. Close-up
________ Subtask 20-23-38-410-052
A. Install the Repaired/New Tube (Ref. TASK 20-23-38-400-003)
Table of Torque Values for Pressure Test
Figure 218/TASK 20-23-38-991-027
1EFF : ALL 1 20-23-38 Page 233
1 1 May 01/98
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TASK 20-23-38-300-002
R Repair of the Tubes of the Potable Water and the Air Supply System to be carried out in the Aircraft
R NOTE : The procedure is the same for both the potable water and the air supply
____ R sytem.
1. Reason for the Job
__________________
Self Explanatory
2. Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific chipless cutting tool No specific clean cloth No specific deburring tool No specific stem subassembly No specific warning notice No specific Grade 240 emery cloth No specific PERMASWAGE repair kit DLT series or D12000 series
tools (vendor code F6087)
B. Consumable Materials
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
Material No. 03-001 USA MIL-PRF-7870 MINERAL OIL (LOW TEMP) (Ref. 20-31-00) Material No. 04-012 USA VV-P-236 PURE MINERALVASELINE OR PETRO- LATUM (Ref. 20-31-00)
C. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
12-15-38-613-001 Fill the Potable Water Tank System (Aircraft
Electrical Power Available)
R 12-24-38-680-001 Draining of the Potable Water System (with Electrical
R Power) 24-42-00-861-001 Energize the Ground Service Network from the External Power 24-42-00-862-001 De-energize the Ground Service Network Supplied from the External Power 30-73-53-000-001 Removal of the Potable-Water De-icing Heater Elements (4DW, 5DW, 6DW, 9DW) 30-73-53-400-001 Installation of the Potable-Water De-icing Heater Elements (4DW, 5DW, 6DW, 9DW) 38-10-00-614-001 Pressurization of the Potable Water System from a Ground Air Supply 38-10-00-614-002 Depressurization of the Potable Water System 38-10-00-670-002 Sterilization of Water Tank and Distribution System
R 20-23-38-991-004 Fig. 203 20-23-38-991-051 Fig. 206 20-23-38-991-005 Fig. 207 20-23-38-991-018 Fig. 208 20-23-38-991-007 Fig. 212 20-23-38-991-008 Fig. 213 20-23-38-991-001 Fig. 219 20-23-38-991-012 Fig. 220 20-23-38-991-003 Fig. 221 20-23-38-991-002 Fig. 222 20-23-38-991-014 Fig. 223 20-23-38-991-009 Fig. 224 20-23-38-991-010 Fig. 225 20-23-38-991-011 Fig. 226 20-23-38-991-013 Fig. 227
3. Job Set-up
__________
Subtask 20-23-38-861-054
A. Energize the ground service network
(Ref. TASK 24-42-00-861-001)
Subtask 20-23-38-010-053
B. Get Access
(1) Remove/open the relevant access panels/doors to get access to the repair area.
Subtask 20-23-38-860-056
C. Drain the Potable Water System R (1) Drain the Potable Water System (Ref. TASK 12-24-38-680-001).
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