-
Install the bundle at its original location except at the two ends of the cleaned length. This is to make an overlap when you clean the subsequent section.
-Make new identification if necessary.
C. Special Conditions Aluminum cables NSA935308YU and E0438YV. The Polyamid Aromatic (NOMEX) braid can operate like a wick. Make sure that the drying operation is correct. If basic materials (pH>11) caused the contamination, the polyimide insulation can have damage.
20-55-20 Page 1
If there is this type of damage, it is better to fully replace the feeder.
20-55-20 Page 220-55-30 Page 1
________________________________________________CLEANING OF CONDUITS - DESCRIPTION AND OPERATION
_______1. General This chapter gives the instructions related to the cleaning of the flexible conduits and the fabric sheaths.
R The CML codes of the cleaning agents are given in 20-55-10.
_____________________________________________2. Flexible Conduits, Shielded Flexible Conduits
R R R A. External contamination Use a Vacuum cleaner or a cloth to remove the contamination. If necessary, complete the cleaning operation with a cloth made moist with solvent then let dry.
R R B. Internal contamination Make sure that the contamination agent is fully removed, specially in the low points of the conduit.
R (1) If there is a drain hole: - Put it at the lowest point and make sure that it is not blocked.
R R R (2) If there is no drain: - Move the conduit on the harness to have one end at the lowest point, or - Make a drain hole at the lowest point, or - Remove the conduit so that the contamination agent can flow out, clean the bundle and install a new conduit.
R R ______________3. Fabric Sheaths The Polyamid Aromatic (NOMEX) sheath can operate as a wick. Make sure that the drying operation is correct.
R ______________________________________________4. Protection of the end fittings of the conduits
R _______WARNING : BE CAREFUL NOT TO CUT YOUR FINGERS. FLAKE OF NICKEL ARE SHARP.
R R R R R At each fitting use the procedure that follows to protect against corrosion: - Use cleaning agents (Material No. 11-004) and a lint-free cloth to remove any contamination from the fitting. - Remove any flakes or blisters, make sure that you do not damage the base metal while you do this task.
R R ____NOTE : A dental or a seal tools are recommended for the removal of flakes and blisters.
R - Use a brush or an airless spray to apply a continuous coat of storage R preservation (Material No. 15-008) with a thickness of 0.030 mm (0.0011 R in.) to cover all the fitting.
20-55-30 Page 2
__________________________________________________________
CLEANING OF BUNDLE ATTACHMENTS - DESCRIPTION AND OPERATION
_______
1. General
This chapter gives the instructions related to the cleaning of the cable supports (ABS0678, ABS0679, etc...) and clamps (NSA5516).
The CML codes of the cleaning products are given in 20-55-10.
______________
2. Cable Supports Use a vacuum cleaner or a cloth to remove the contamination. Do these steps:
-remove the tie that holds the bundle.
-move the bundle from the support.
-
clean the support with a cloth moist with solvent.
-
clean the opposite face of the bundle.
-let dry.
-put the bundle in position and attach it with a tie.
____
NOTE : For Polyetherimide (PEI) wire supports (ABS0678), use only Isopropyl Alcohol (Material No. 11-010).
_____________3. Clamp NSA5516
A. Surface Contamination of the Bundle
-use a vacuum cleaner or a cloth to remove the contamination.
-clean with a cloth moist with solvent.
B. Deep Contamination of the Bundle Remove the support and replace it with a new support of the same type and dimensions.
20-55-40 Page 1
_________________________________________________________________
CLEANING OF STANDARD ELECTRICAL ITEMS - DESCRIPTION AND OPERATION
_______
1. General This chapter gives the instructions related to the cleaning of these items:
-connectors.
-terminal block modules.
-grounding modules.
-relays and bases.
-pushbutton switches, lights.
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