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- High pressure cleaner adjusted to 60 bars maximum with spraying nozzle
- Low pressure tap water
- Container
- Protective clothes (goggles, gloves, ...)
- Waterproof covers for wheels
- Blanking cap for pitot tube
- Blanking caps for static ports
B. Cleaning procedure
1) Make sure water outlets under wings and fuselage are not clogged.
2) Put blanking caps and blank off air intakes.
3) Cover wheels with waterproof covers.
4) Close access doors and baggage compartment door.
5) In a container filled with clean water, dilute one cleaning agent (TB 11-904) volume for 10 water volumes.
NOTE : If the pollution is reasonable, dilute one cleaning agent volume into 3 to 9 water volumes. For heavy pollution like exhaust trails, dilute up to one cleaning agent volume into 3 water volumes.
6) Spray the detergent solution on aircraft external surfaces, except on landing gears, windshield and side window panels ; if necessary, use a soft-bristle brush.
7) Keep the detergent solution on the area to be cleaned for 5 to 10 minutes, then abundantly rinse with low-pressure tap water.
NOTE : Do not allow the solution to dry before rinsing, as cleaning may be less effective.
8) Dry with a chamois leather.
9) Remove blanking caps except those used for parking.
10) Remove waterproof covers.
11) Make sure all the tools and materials are removed and the work area is clean and free from debris.
12) Lubricate flight controls - refer to 12-21-04.
13) If it is necessary to remove ice deposits, use isopropyl alcohol (TB 10-002).
WA
Validity : S / N 1 - 9999
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(BA) SEP 04
2. CLEANING OF LANDING GEARS
A. Tools and consumable materials
- Soft-bristle brush
- Cleaning agent (TB 11-905)
- Lintfree clean cloths
- Protective clothes (goggles, gloves,
- Low pressure tap water
- Waterproof covers for wheels
B. Cleaning procedure
1) Cover wheels with waterproof covers.
2) Apply some cleaning agent (TB 11-905) with a soft-bristle brush to the areas to be cleaned, except on sliding tube scraper ring and hinge ball joints.
3) Keep the detergent solution on aircraft for 5 to 10 minutes, then abundantly rinse with low-pressure tap water.
NOTE : Do not allow the solution to dry before rinsing, as cleaning may be less effective.
4) Dry with lintfree clean cloths.
5) Clean sliding tube scraper ring and hinge ball joints with a lintfree clean cloth without any cleaning agent.
6) Remove waterproof covers.
7) If necessary, clean tires but with water only.
8) Lubricate the landing gear - refer to 12-21-05.
NOTE : For aircraft operating in salt laden environment, protect landing gears and landing gear wells - refer to 20-00-04.
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TB20 MAINTENANCE MANUAL 12 SERVICING TB20飞机维护手册 12 保养(67)
