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 28-11-00
 ú  ALL  ú
 ú ú  ú 01.101 ú  Page 720Sep 28/02 

A

757
MAINTENANCE MANUAL

 S 217-013
 (15)
 Make sure that all surfaces of the fuel tank that you apply corrosion resistant finish to are clean.

 (a)  
If you are not sure, clean the surfaces of the fuel tank with BMS 11-7 solvent before you apply the corrosion resistant finish.

 S 217-014
 (16)
 Make sure the storage life of the corrosion resistant compounds that are not mixed is not expired.

 (a)  
The storage life of BMS 10-20, Type II Class A is 12 months at 40° to 90°F (4.4° to 32.2°C) from the date of manufacture.

 (b)  
The storage life of MIL-C-27725 corrosion resistant finish is as follows: 1) For DeSoto 823-011 or 823-730 the storage life is 12 months

 at 50° to 90°F (10.0° to 32.2°C) from the date of manufacture.
 2)  For Products Research Co. PR-1560M, PR-1560MC, PR-1560MK the storage life is 6 months at 50° to 90°F (10.0° to 32.2°C) from the date of manufacture.
 S 217-015
 (17) Make sure there is sufficient corrosion resistant material to apply the corrosion resistant finish.
 S 957-016
 CAUTION: REMOVE ALL MASKING TAPE AFTER YOU APPLY THE CORROSION RESISTANT
_______ FINISH. FAILURE TO REMOVE ALL THE MASKING TAPE COULD BLOCK THE SUCTION INLETS OF THE FUEL BOOST PUMP.
 (18) Apply masking tape to all non structural equipment areas in the fuel tank which are near the surfaces that you apply the corrosion resistant finish (topcoat) to.
 NOTE: Do not apply the corrosion resistant finish (topcoat) to
____ electrical bonding surfaces, clamps, O-rings, valves, fuel measuring sticks, tank units, compensators, wiring, pumps, filler caps or other non structural equipment.
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 28-11-00
 ú  ALL  ú
 ú ú  ú 01.101 ú  Page 721Sep 28/02 

A

757 MAINTENANCE MANUAL
 S 227-017
 (19) Make sure you keep the corrosion resistant finish at 50° to 100°F
 (10.00
 to 37.8°C) with less than 85 percent relative humidity while you apply it.
　
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