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A. Brass Drift Pin (locally procured)
3. Removal (Fig. 401)
A. Remove PS3 line from pressure ratio bleed control.
B. Remove connector and retaining ring from bleed control housing. Remove O-Ring from connector and discard.
C. From opposite end of bore remove retaining ring, screen and retaining ring which secures venturi.
D. Place suitable drift against venturi and drift venturi with metering plug from bleed control housing. Remove O-ring from metering plug and O-ring from venturi. Discard O-rings.
4. Installation
A. Check that bleed control housing, venturi, screen, retaining rings, metering plug and O-rings are clean and free of dirt, grit and moisture.
CAUTION: DIRT, GRIT AND MOISTURE MAY DAMAGE PREFORMED PACKING.
B. Lubricate O-ring with petrolatum and place in groove of venturi. Seat venturi in bleed control housing. Secure venturi with retaining ring. Install screen and secure with retaining ring.
C. Lubricate O-ring with petrolatum and place in groove of metering plug. Seat plug in bleed control housing and secure with retaining ring.
D. Lubricate O-ring with petrolatum and install on connector. Install connector in bleed control housing and tighten.
E. Connect PS 3 line to pressure ratio bleed control.
501
Jun 20/83 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. 75-31-12 Page 401
Pressure Ratio Bleed Control Metering 501
75-31-12 Plug Installation Sep 20/82
Page 402 Figure 401
BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details.
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