____________ _______ Tbay is in `F.
Cf = (tbay = 460) * (29.92) Where: 529 Pbar Pbar is in IN. HG.
A 737-300/400/500MAINTENANCE MANUAL
(3)
C21001-12 Equipment Cooling System Performance Test Set (alternative)
(4)
F80237-13 Equipment Cooling System Performance Test Set (alternative)
(5)
Aluminum Foil Marker - BAC27DEX2015
C. References
(1)
AMM 24-22-00/201, Manual Control
(2)
AMM 34-28-31/401, Inertial Reference Unit
D. Procedure
S 035-022
(1) Remove the IRUs from the E3-5 shelf (AMM 34-28-31/401).
TEST PORT GAGE PRESS IN. H O2 GAGE PRESS CORRECTED IN. H O2 MIN ACCEPTABLE PRESS IN. H O2 OK LOW OR HIGH CORRECTED PRESS STATUS
1 0.5
2 0.5
Test Data Sheet
Figure 504
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A 737-300/400/500MAINTENANCE MANUAL
S 865-023
(2) Supply electrical power (AMM 24-22-00/201).
S 865-024
(3) Make sure these circuit breakers on the P18-3 panel are closed:
(a) NORMAL SUPPLY FAN POWER
(b) NORMAL SUPPLY FAN CONTROL
S 865-025
(4) Set the EQUIP COOLING SUPPLY switch on the P5 overhead panel to the
NORMAL position.
S 865-026
(5) Close the E/E compartment hatch if the ambient temperature is below
40 degrees Fahrenheit.
S 285-027
(6) Measure the temperature in the E/E Bay between the E-2 and the E-3
racks with a thermometer.
S 975-028
(7) Make a record of the E/E Bay temperature.
S 975-029
(8) Make a record of the barometric pressure.
NOTE: The standard barometric pressure for the altitude where the____
test is done is satisfactory.
S 215-030
(9)
Before you take the pressure measurements, hold the pressure indicator vertically and make sure that it reads "zero".
S 015-045
(10)
Remove the "REMOVE FOR COOLING TEST ONLY" foil markers from the test ports in the cooling supply ducts to the E3-5 shelves.
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A
737-300/400/500MAINTENANCE MANUAL
S 785-031
(11)
Measure and make a record of the pressure at the test ports (Fig. 501 and Fig. 504).
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