(2)
B00775 - Isopropyl Alcohol - TT-I-735
(3)
A00539 - Adhesive - BAC5010, Type 71 (Furane 8543, Ciba-Geigy)
C. References
(1) 24-22-00/201, Electrical Power
D. Access
(1) Location Zone
200 Lower Half of Fuselage
E. Procedure
S 868-002
(1)
Supply electrical power (Ref 24-22-00/201).
S 868-003
(2)
Operate the outflow valve until it is fully open:
(a)
Make sure that these circuit breakers on the P6 panel are closed. 1) AUTOMATIC AC AND DC 2) STBY AC AND DC 3) MAN AC AND DC
(b)
Set the FLT-GRD switch on the pressurization control panel to GRD.
(c)
Close the LANDING GEAR - LIGHTS circuit breaker on the P6 panel.
(d)
Set the mode selector switch to DC MAN.
(e)
Move and hold the toggle switch for the manual operation of the outflow valve to OPEN until the outflow valve is fully open.
WARNING: DO NOT OPERATE THE OUTFLOW VALVE WHILE YOU DO THE REPAIR.
_______ IF YOU OPERATE THE VALVE WHILE YOU DO THE REPAIR, YOU CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
(f) Open and install safety collars on these circuit breakers on the P6 panel: 1) AUTOMATIC AC and DC
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
OUTFLOW VALVE SEE
OUTFLOW VALVE
FRAME SEAL
OUTFLOW VALVE GATE OUTER SKIN PANEL
OUTFLOW VALVE FRAME
FWD
OUTFLOW VALVE (OUTFLOW VALVE SHOWN FULLY OPEN)
OUTLINE OF FRAME SEAL GROOVE NOT SHOWN FOR CLARITY
Cabin Pressurization Outflow Valve Seal Repair Figure 801
B02386
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ALL ú ú 01 Page 802 ú Nov 15/92
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
2) STBY AC and DC
3) MAN AC and DC
S 148-004
(3) Use a plastic or wood tool with a sharp edge to remove the seal from
the outflow valve frame.
S 118-005
(4) Clean the frame seal groove with solvent, Series 89 (AMM
20-30-89/201) to remove all signs of the adhesive.
S 118-006
(5) Use a clean lint-free cloth to remove the solvent before it dries.
S 348-007
(6) Use the manufacturers' instructions to prepare the adhesive.
NOTE:____ The pot life of the adhesive at temperatures below
100 degrees F. is 3 to 4 minutes. The adhesive must be
applied and the seal installed into the frame seal groove
quickly after the adhesive is mixed.
S 348-008
(7)
Apply a thin constant layer of the adhesive to the mating surfaces in the frame seal groove.
S 428-009
(8)
Install the valve frame seal into the groove immediately after you apply the adhesive.
S 498-010
(9)
Use the weight tool 715853-1-T4 and two C-clamps to hold the seal in the groove.
S 348-011
(10)
Let the adhesive dry for a minimum of 120 minutes at a temperature more than 45 degrees F.
S 098-012
(11)
Remove the weight tool and the C-clamps after the adhesive has dried.
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