21-26-03
 ALL  ú ú 09 Page 402 ú Sep 20/88
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A

757 MAINTENANCE MANUAL
 C. Prepare for Installation
 S 624-005
 (1)  
Cut a new filter from the fiberglass filter material. Make sure that the new filter is the same size as the old filter.

 S 164-011

 (2)  
Clean the grille with soap and water.

 D.
Install the galley ventilation filter

 S 424-006
 (1)  Put the new filter into the ventilation inlet.
 NOTE: The filter material is two (2) inches thick, but
____ compresses to one (1) inch when it is installed.
 S 414-007
 (2)  
Put the grille in position over the ventilation inlet.

 (3)  
Install the screws to keep the grille in position.

 S 414-008
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 21-26-03
 ALL  ú ú 01 Page 403 ú Jun 20/93
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
757 FAULT ISOLATION/MAINT MANUAL
PRESSURIZATION
COMPONENT  FIG. 102 SHT  QTY  ACCESS/AREA  REFERENCE 
ACTUATOR - CABIN PRESSURE OUTFLOW VALVE,  3  1  822, AFT CARGO COMPT, CABIN 21-31-04 
YBWM1  PRESS OUTFLOW VALVE, V15 
CIRCUIT BREAKERS  2  FLT COMPT, P11 
CABIN ALTITUDE CONTROL AUTO 1, C686  1  11N15  * 
CABIN ALTITUDE CONTROL AUTO 2, C701  1  11N24  * 
CABIN ALTITUDE CONTROL MANUAL, C683  1  11B14  * 
CABIN ALTM, C4205  1  11B13  * 
CABIN ALT/PRESS SELECT, C658  1  11B15  * 
EICAS R, M10182 COMPUTER - (REF 31-41-00, FIG. 101) EICAS L, M10181 AIR DATA L, M100 AIR DATA R, M101 COMPUTER - (REF 34-12-00, FIG. 601) CABIN DIFF PRESS IND, C4206  1  11B12  * 
CONTROLLER - CABIN PRESSURE  821, FWD CARGO COMPT, E5 RACK  21-31-02 
NO. 1, M118  2  1 
NO. 2, M119  2  1 
AUTO THROTTLE, M966 MICROSWITCH PACK - (REF 22-32-00, FIG. 101) DIODE - R103151 119BL, MAIN EQPT CTR, P36  *
MODULE - HIGH ALTITUDE WARNING, M10756 1  2  1  FLT COMPT, P5  * 
WARNING, M19 MODULE - PRESSURIZATION AND INDICATING  2  1  FLT COMPT, P5  21-33-01 
MOTOR - OUTFLOW VALVE ACTUATOR AC, YBWM2 3  2  822, AFT CARGO COMPT, CABIN 21-31-03 
PRESS OUTFLOW VALVE, V15 
MOTOR - OUTFLOW VALVE ACTUATOR DC  3  1  822, AFT CARGO COMPT, CABIN 21-31-03 
PRESS OUTFLOW VALVE, V15 
PANEL - DISCRETE WARNING DISPLAY, M779 RELAY - (REF 31-01-37, FIG. 101) SYS 1 AIR/GND, K10238 SYS 2 AIR/GND, K207 HIGH ALT SEL/ENABLE, K10610 HIGH ALT SEL/INOP, K10611 RELAYS - (REF 31-01-36, FIG. 101) 1 1  2  1 FLT COMPT, P1  21-33-00 
SELECTOR - CABIN PRESSURE, M13  2  1  FLT COMPT, P5 21-31-01 
SENSOR - DIFFERENTIAL PRESSURE, TS5072  3  1  113AL, FWD EQUIP CTR  21-33-04 
SWITCH - CABIN ALT WARNING, S431 119BL, MAIN EQUIP CTR, P361  * 
SWITCH - CABIN HIGH ALT WARNING, S10553 1  1  119BL, MAIN EQUIP CTR, P36  * 
SWITCH - THROTTLE POSITION, S17  2  1  113AL, FWD EQUIP CTR, MICRO- 22-32-04 
SWITCH PACK, M966
SWITCH - THROTTLE POSITION, S18  2  1  113AL, FWD EQUIP CTR, MICRO- 22-32-04 
SWITCH PACK, M966 
SWITCH/LIGHT - HIGH ALT LANDING, YTLS1 1  2  1  FLT COMPT, P5, HIGH ALTITUDE * 
WARNING MODULE, M10756 
VALVE - CABIN PRESSURE OUTFLOW, V15  3  1  822, AFT CARGO COMPT  21-31-03 
VALVE - POSITIVE PRESSURE RELIEF  1  2  822, AFT CARGO COMPT  21-32-01 
VALVE - VACUUM PRESSURE RELIEF  1  2  119BL, MAIN EQUIP CTR  21-32-02 

* SEE THE WDM EQUIPMENT LIST GUN 004-007

Pressurization - Component Index
Figure 101

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