(2)
Solvent - B01011, Series 91 - commercially available (AMM 20-30-91/201)
(3)
Wiping cloth, lint free - commercially available
C.
References
(1)
AMM 36-00-00/201, Pneumatic - General
D.
Prepare for the Repair
S 862-284
(1) Release the pressure from the pneumatic system (AMM 36-00-00/201).
NOTE: This will make sure that there is no airflow in the ducts
____
when you do the repair.
S 862-285
(2)
On the bleed air control module on the pilots' overhead panel, P5, put the pack control switches in the OFF position.
S 012-286
(3)
Remove the applicable ceiling, sidewall, or floor panels to gain access to the damaged air conditioning duct joint.
(4)
Remove the duct if needed for better access.
S 012-321
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
21-23-01
ALL ú ú 01.1 Page 233 ú Sep 28/02
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
757 MAINTENANCE MANUAL
S 162-259
WARNING: DO NOT GET SOLVENTS IN YOUR MOUTH, OR YOUR EYES, OR ON YOUR
_______ SKIN. DO NOT BREATHE THE FUMES FROM THE SOLVENTS. SOLVENTS ARE HAZARDOUS MATERIALS. SOLVENTS MAY BE FLAMMABLE OR HARMFUL TO THE ENVIRONMENT. REFER TO PRODUCT MATERIAL SAFETY DATA SHEETS (MSDS) AND LOCAL REQUIREMENTS FOR PROPER HANDLING PROCEDURES.
(5)
Use the solvent and a wiping cloth to clean the surface of the insulation around the damaged area.
E.
Repair the Damaged Insulation
S 412-322
(1)
Apply a minimum 2-inch wide patch of adhesive tape (BMS 5-149) to completely cover the damaged area on the insulation.
(a)
Make sure to apply a large enough patch to assure full coverage of the damaged area with a minimum 1/2-inch overlap.
F.
Put the Airplane Back to Its Usual Condition
S 412-288
(1)
Reinstall the duct (if removed).
S 412-287
(2)
Replace the panels or other airplane structure removed to gain access to the duct joint.
TASK 21-23-01-212-331
13. Insulation Replacement - Duct with Polyimide Foam Insulation (Fig. 203)
____________________________________________________________
A. General
(1)
This procedure gives instructions to replace the insulation on air conditioning ducts with Polyimide foam insulation (BMS 8-300).
B.
Consumable Materials
(1) Insulation - Polyimide Foam (BMS 8-300) ú (2) Tape - Pressure sensitive adhesive (BMS5-149, Type XI, Class 1, ú Grade C) (AMM 20-30-07/201) ú ú NOTE:____Do not use the BMS 5-149 tape made by the Orcon Corporation ú with the BMS 8-300 polyimide foam insulation material. Only ú the BMS 5-149 tape made by E&H Laminating & Slitting Company ú is compatible with the BMS 8-300 polyimide foam insulation ú material. ú
(3)
Solvent - B01011, Series 91 - commercially available (AMM 20-30-91/201)
(4)
Wiping cloth, lint free - commercially available
C.
References
(1)
AMM 36-00-00/201, Pneumatic - General
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
21-23-01
ALL ú ú 01.1 Page 234 ú Sep 28/02
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
D.
E.
F.
A
757
MAINTENANCE MANUAL
Prepare for the Repair
S 862-289
(1) Release the pressure from the pneumatic system (AMM 36-00-00/201).
NOTE: This will make sure that there is no airflow in the ducts
____
when you do the repair.
S 862-290
(2)
On the bleed air control module on the pilots' overhead panel, P5, put the pack control switches in the OFF position.
S 012-291
(3)
Remove the applicable ceiling, sidewall, or floor panels to gain access to the damaged air conditioning duct joint.
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