S 424-062
CAUTION:_______MAKE SURE YOU INSTALL CAPS ON THE SENSE LINE AND PORT. IF YOU DO NOT INSTALL THE CAPS, CONTAMINATION CAN OCCUR.
(13)
Install caps on the sense line and the PRSOV port.
(14)
Move the sense lines to permit removal of the valve.
S 864-067
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A 737-300/400/500MAINTENANCE MANUAL PRSOV BRACKET
SEE A
PRSOV FWD B SENSE LINE DOWNSTREAM PRSOV
PRSOV SENSE LINE DOWNSTREAM
SEE B PRECOOLER
Pneumatic Disconnects on the PRSOV - Left Side Figure 403 1. COUPLING PRSOV A 2. E-SEALCOUPLINGS ON 5TH-STAGE DUCT 5TH-STAGE DUCT FWD
E54256
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A
737-300/400/500MAINTENANCE MANUAL
S 024-068
(15) Remove the valve.
NOTE: You can only remove the valve from the right side of the
____
engine.
S 024-083
(16) Remove the union fittings, tee and O-rings from the PRSOV.
(a) Discard the used O-rings.
S 024-084
(17)
Remove the PRSOV bracket from the PRSOV and save it for installation on the replacement PRSOV.
S 034-065
(18)
Put covers on the openings for the duct and the precooler to keep out unwanted objects.
TASK 36-11-15-404-017
3. Install the PRSOV (Fig. 401-405)
_________________
A. Consumable Materials
(1)
D00006 - Antiseize Compound, NEVER SEEZ (AMM 20-30-21/201)
(2)
O-rings (P/N BACP11K-6, 2 required)
(3)
O-ring (P/N BACP11K-5, 1 required)
B. References
(1)
AMM 36-05-00/201, Pneumatic System
(2)
AMM 36-11-05/501, Engine Bleed Air Distribution System
(3)
AMM 71-11-04/201, Fan Cowl Panels
(4)
AMM 78-31-00/201, Thrust Reverser System
C. Access
(1)
Location Zones
502/503 Fan Cowl - Left Nacelle
504/505 Thrust Reverser - Left Nacelle
602/603 Fan Cowl - Right Nacelle
604/605 Thrust Reverser - Right Nacelle
(2)
Access Panels
5737/5837 Fan Cowl Assy
5738/5838 Thrust Reverser Cowl Assy
5739/5839 Thrust Reverser Cowl Assy
5746/5846 Fan Cowl Assy
D. Prepare to Install the Valve (Fig. 404)
S 434-066
(1) Install the PRSOV bracket on the PRSOV, if the previously removed PRSOV had a bracket attached to it.
(a) Install the bolts and washers to secure the PRSOV bracket to the PRSOV.
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A
737-300/400/500MAINTENANCE MANUAL
SEE A
BOLT
WASHER
(2 LOCATIONS)
BOLT
WASHER
(2 LOCATIONS)
PRSOV BRACKET
(EXAMPLE)
UNION FITTING O-RING FWD
O-RING UNION
PRSOV FITTING TEE
PRSOV ASSEMBLY
O-RING
UNION
(EXAMPLE) CAP 1
FITTING
A
ON AIRPLANES WITHOUT DOWNSTREAM
SENSE LINE TO BLEED AIR REGULATOR.
Pressure Regulating and Shutoff Valve Installation
Figure 404
E55067
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