Fire Detection Plugs - Contact Layout
NSA938683
Figure 007
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Fire Detection Plugs - P/N Characteristics and Layout
NSA938683
Figure 008
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Fire Detection Plug - Wire Stripping and Crimping Tools
NSA938683
Figure 009
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Engage the insulator bushing (8) into the connector body (9)
(Male contact).
NOTE : Make sure that the counterbored end of the bushing faces
out of the connector body,
-Install the nut (10) on the connector body (9) (Male contact).
-Slide the connector body, with the insulator bushing, over the contact and the support.
-Apply a small fillet of potting compound 1-100HT:D, mixed in accordance with the manufacturers instructions, around the back of the spring washers.
-Lightly coat the threads of connector body with LOCTITE sealant, Grade AA and, using a suitable holding device, TORQUE sleeve to 0.565 m.daN (49.9999 lbf.in).
-Crimp the rear of the sleeve (4) with appropriate tool. The potting compound must be cured as follows before proceeding : 3 hours at 65 deg.C (149.00 deg.F) 1 hour at 121 deg.C (249.80 deg.F) 1 hour at 177 deg.C (350.60 deg.F)
-Brush the shank of the sleeve and the wire on a distance of three inches with SR 529 adhesive thinned with toluol or methyl-ethyl-ketone to a viscosity of 300 P.
-
Install heat shrinkable sleeve (2) against shoulder of sleeve and shrink with a suitable heat gun, do not exceed 357 deg.C
(674.60 deg.F)shrink temperature.
-
Install the heat shrinkable sleeve (3).
-
Install the spring (1) in the groove at rear of the sleeve (4).
E. NSA938684 fire detection connector
(1) P/N identification (Ref. Fig. 010)
NSA938684 01
| |
| -------- Type of contact code | 01 = Male contact
| | 02 = Female contact
| | 03 = Nut
------------------ Standard P/N
(2) P/N characteristics
(a) Contact layout (Ref. Fig. 010)
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Fire Detection Plug - P/N Identification and Torque Values
NSA938684
Figure 010
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(3) Crimping procedure (Ref. Fig. 011)
-Slide the spring (1) and the sleeve (2) on the wire.
-Strip the wire to the size "A".
-Insert the end of the wire though the bushing (3) and into the contact core (4).
-Crimp the contact core (4) with the required tool.
-Apply a small fillet of potting compound DOW CORNING R-7002 or equivalent inside the bushing (3).
-Insert the contact core (4) fully into the contact body, through the nut (5).
-Increase the wire diameter by adding 19 mm (0.7480 in.) adhesive tape (Material No. 08-032) around the wire.
____NOTE : Make sure that the sleeve (2) can slide freely
-Lightly coat the threads of the sleeve (2) with LOCTITE sealant (Material No. 08-013) and manually tighten the contact body (6).
-Crimp the sleeve (2) with the required tool.
-Wrap KAPTON silicone tape or equivalent around the wire, starting 25 mm (0.9842 in.) from the rear of the ferrule, towards the aft ferrule.
-Slide and tighten fully the spring onto the ferrule.
-Shrink for 3mn between 150 deg.C (302.00 deg.F) and 170 deg.C
(338.00 deg.F).
____
NOTE : Shrinking is not necessary if the wire is installed on the engine (shrinking will be done by the engine heat when running).
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Miscellaneous Items - Wire stripping, Crimping Tools and Layout
NSA938684
Figure 011
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_________________
4. Manufacturer P/Ns Miscellaneous items with manufacturer P/Ns installed on the aircraft have the P/Ns that follow :
-195PN01Y01
-1X2002749
-205PN01
-205PN01Y01
-24-457
-2LA002692
-2LA003717
-2LA004626
-2LA004891
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本文链接地址：A320 ESPM Electrical Standard Practices Manual 4(3)
