Pressure Seal (Compound Filled) - Characteristics NSA934710 R Figure 006
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- Remove the cable ties at this point over a length sufficient for easy access to the cables in the middle of the bundle. - Clean all the parts to be reactivated with a CLEANING AGENTS (Material No. 11-004A) or equivalent. - The surfaces must be fully dry before you apply the SEALANTS (Material No. 09-002) or (Material No. 09-016).
R R R (3) Preparation of the Compound - In a container, weigh the necessary quantity of SEALANTS base (Material No. 09-002) or ( Material No. 09-016) - Add the applicable weight of SEALANTS accelerator (Material No. 09-002) or ( Material No. 09-016) (Refer to table that follows) .
----------------------------------------------
| Mat N. | Part of | Part of | | | base | accelerator | |--------------------------------------------| | 09-002 | 7.5 | 1 | |--------------------------------------------| | 09-016 | 10 | 1 | ----------------------------------------------
- Fully mix the two components (e.g. with a drill with a mixer end fitting), - When you have a homogeneous mixture, apply the compound.
R R ____NOTE : The pot life of the compound depends on the quantity of catalyst in the base product. Quantify the proportions according to the time necessary to do the work.
____NOTE : The compound is fully cured after 72 hours.
(4) Sealing procedure R (Ref. Fig. 007)
_______
WARNING : DO NOT GET THE COMPOUND ON YOUR SKIN OR IN YOUR EYES. IF YOU GET IT ON YOUR SKIN:
-
REMOVE AS MUCH AS POSSIBLE WITH A CLEAN CLOTH
-
REMOVE THE REMAINING COMPOUND WITH SOAP AND FLUSH WITH
CLEAN WATER.
IF YOU GET IT IN YOUR EYES:
-FLUSH IT AWAY WITH CLEAN WATER
-GET MEDICAL AID IF NECESSARY.
-Cut the spring spacers to a length slightly shorter than that of the seal fitting ( 25 mm (0.9842 in.) to 40 MM (1.5748 IN.) depending on the pressure seal shell)
R - Put the spring spacers on each wire gauge 20 and under, on two wire R gauges 22 and 24 or on each twisted bundle (Ref, detail A).
-
Put the spacers in position in the seal fitting (Ref. detail B).
-
Put the gun nozzle between each wire and move it while you extrude the compound in order to coat all the wires with the SEALANTS (Material No. 09-002) or (Material No. 09-016).
-Make sure that the nozzle is at the surface of the product level to prevent the formation of air bubbles. The necessary pressure is approximately 3 bar (43.5113 psi).
-Install the half shells (1 and 2) of the seal when the assembly is correctly filled.
-Use a cable clamp and tighten it slowly until the half-shells are put together, then discard the clamp (Ref. detail C).
-Wind protective adhesive tape (50 mm (1.9685 in.) width) three times around the end of the seal fitting (Ref. detail D).
-Close with adhesive tape and crepe paper (19 mm (0.7480 in.) width) (Ref. detail E).
-Repeat at the other end of the seal. R - Make a hole in the tape at one of the injection holes of the seal R fitting (Ref. detail E).
-Fill the flange with SEALANTS (Material No. 09-002) or (Material No. 09-016) and attach the seal fitting.
-Inject the SEALANTS (Material No. 09-002) or (Material No. 09-016) through the first hole until it shows between the gaps or on the wires.
-Close the hole with adhesive tape.
-Make another hole and do again the filling operation.
-Do the same with all the holes of the seal fitting.
-After the curing time has elapsed, remove the tapes and clean off surplus sealant with CLEANING AGENTS (Material No. 11-004A) or equivalent.
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Pressure Seal (Compound Filled) - Sealing Procedure NSA934710 R Figure 007
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________________________
4. Cable Addition Procedure
R _______WARNING : USE SOLVENTS/CLEANING AGENTS, SEALANTS AND OTHER SPECIAL MATERIALS
R ONLY WITH A GOOD FLOW OF AIR THROUGH THE WORK AREA.
R THESE MATERIALS ARE POISONOUS AND FLAMMABLE AND SKIN IRRITANTS.
R OBEY THE MANUFACTURERS INSTRUCTIONS.
R PUT ON PROTECTIVE CLOTHING.
R DO NOT GET THEM IN YOUR MOUTH.
R DO NOT SMOKE.
R DO NOT BREATHE THE GAS.
R GET MEDICAL HELP IF YOUR SKIN OR EYES BECOME IRRITATED.
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本文鏈接地址：A320 ESPM Electrical Standard Practices Manual 3(14)
