TB20 MAINTENANCE MANUAL 12 SERVICING TB20飞机维护手册 12 保养(69)

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Sweets, chocolate Impregnate with lukewarm water (50°C max) or with ammonia diluted to 5 %.
Paint Oil paint : impregnate with ethyl alcohol and shampoo. Distemper : if the stain is fresh, impregnate with cold water. It is very difficult to remove old stains. Consult a specialist.
Make-up Use ethyl alcohol and perchlorethylene, then shampoo. If stain persists, use ammonia diluted to 5 % or methylated alcohol.
Fruits Impregnate with lukewarm water (50°C max), then shampoo.
Chewing gum Impregnate with acetone or perchlorethylene.
Ink Remove as much as possible with blotting paper and impregnate with methylated alcohol (30 %) mixed with water (70 %), then shampoo. Lemon juice gives also good results.
Jam, sirup, fruit juice Impregnate with lukewarm water (50°C max). If stain persists, use ethyl alcohol or perchlorethylene.
Ball-point pen Use perchlorethylene or methylated alcohol.
Wine, drinks Use a mixture of 50 % water, 50 % vinegar, then shampoo.

WA
Validity : S / N 1 - 9999 12-22-02Page 302
(BA) SEP 04
 
POWER PLANT COMPARTMENT CLEANING
SERVICING
WARNING : PRIOR TO ANY OPERATION, ENSURE THAT THE KEY IS REMOVED FROM MAGNETO SELECTOR AND THAT "MAIN SWITCH" IS OFF.
PRIOR TO ANY OPERATION, MAKE SURE THE ENGINE, EXHAUST PIPE AND MANIFOLDS ARE COLD.
CAUTION : DO NOT USE GASOLINE OR OTHER HIGHLY FLAMMABLE PRODUCTS.
PERFORM ALL CLEANING OPERATIONS IN WELL VENTILATED AREAS AND ENSURE THAT ADEQUATE FIREFIGHTING AND SAFETY EQUIPMENT ARE AVAILABLE. DO NOT SMOKE OR USE AN OPEN FLAME SOURCE WITHIN 100 FEET FROM THE CLEANING AREA.
USE SAFETY GOGGLES, PROPER CLOTHES AND GLOVES.
WEAR A MASK TO AVOID INHALING HARMFUL VAPORS.
1. POWER PLANT COMPARTMENT CLEANING
A. Tools and consumable materials
- Cleaning agent (TB 11-002)
- Lintfree clean cloths
- Non metallic hard-bristle brush
- Filtered compressed air source
- Container
- Adhesive tape
- Blanking caps
- Compressed air gun with reservoir
- Waterproof wheel covers
- Protective covers
B. Procedure
1) Make sure the engine is cold.
2) Remove engine cowlings - refer to 71-10-01.
3) Protect aircraft and engine to avoid infiltration and splashing of cleaning agents.
4) Blank off all ducts and apertures with blanking caps and adhesive tape.
5) Protect nose wheel with waterproof cover.
6) Install a container under the engine.
7) Apply cleaning agent (TB 11-002) with a low pressure compressed air gun. If necessary, use also a non metallic hard-bristle brush or a paint brush.
8) Swab excess cleaning agent with lintfree clean cloths.
WA
Validity : S / N 1 - 9999 12-22-03Page 301
(BA) SEP 04
 
9) Dry engine compartment using a low pressure compressed air gun.
　
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