S 716-063
(18)
Set the SYSTEM SELECTOR valve handle to the OFF position.
S 036-064
(19)
Disconnect the TYPE A hose from Test Set Fitting No. 2.
S 036-065
(20)
Disconnect the TYPE A hose from the Bleed Air Regulator control pressure port.
S 436-066
(21)
Connect the control pressure line to the Bleed Air Regulator.
S 436-067
(22)
Install a Cap on Test Set Fitting No. 2.
S 036-068
(23)
Remove the No. 4 and No. 5 Test Set Fitting Caps.
NOTE: Test set fitting No. 5 will be a vent for test set
____
gauge No. 2.
S 036-069
(24)
Disconnect the TYPE A hose from Test Set Fitting No. 1.
S 436-070
(25)
Connect the same TYPE A hose to Test Set Fitting No. 4.
S 436-071
(26)
Install a cap on Test Set Fitting No. 1. (See Fig. 603 Sheet 2)
S 216-072
(27)
Make sure these items are as follows:
(a)
Make sure shutoff valve No. 1 is in the Closed position
(b)
Make sure shutoff valve No. 4 is in the CLOSED position.
(c)
Make sure the differential selector is in the OFF position.
(d)
Make sure Test Set Fitting No. 1, 2, 3, and 6 are tightly installed.
S 716-073
(28) Turn the Primary Regulator clockwise until (50.0 | 5.0) psig. is indicated on the Primary System Gauge.
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
36-11-05
ALL ú ú 01 Page 615 ú Jul 15/96
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500
MAINTENANCE MANUAL
PORTABLE VALVE ACTUATING TEST SET (EXAMPLE)
BLEED AIR
BLEED AIR REGULATOR
REGULATOR SUPPLY
PRESSURE PORT
TYPE
A HOSE
PRESSURE PORT REGULATOR CONTROL BLEED AIR B
TO 450`F THERMOSTAT LINE FROM BLEED (REF) AIR REGULATOR PRESSURE CONTROL
PRSOV
AFT
TO PRECOOLER DUCT
MANUAL OVERRIDE AND POSITION INDICATOR
Bleed Air Regulator and PRSOV System Inspection/Check Figure 603 (Sheet 2)
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
36-11-05
ALL ú ú 01 Page 616 ú Jul 15/93
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
S 716-074
(29)
Set the SYSTEM SELECTOR handle to the A position.
S 716-075
(30)
Open TEST SET shutoff valves No. 2 and No. 3.
S 716-076
(31)
Turn Pressure Regulator No. 1 clockwise until (19.0) inches of Hg. is indicated on Test Set Gauge No. 2.
S 216-140
(32)
Examine the position indicator on the PRSOV.
(a)
If the position indicator is in the full-open position, go to H.(49).
(b)
If the position indicator is NOT in the full-open position, continue.
S 716-077
(33)
Turn Pressure Regulator No. 1 counterclockwise until (0.0) psig. is indicated on Test Set Gauge No. 2.
S 716-078
(34)
Set the System Selector in the OFF position.
S 036-079
(35)
Disconnect the air sense line at the Tee-Fitting at the PRSOV.
NOTE: This line runs from the the Tee-Fitting up to the
____
firewall and into the strut.
S 436-080
(36)
Install the MS21902-6 cap on the Tee-Fitting at the PRSOV.
(37)
Set the SYSTEM SELECTOR valve handle to the A position.
S 716-081
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
36-11-05
ALL ú ú 01 Page 617 ú Jul 15/95
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