(6)
Measure the resistance from pin 3 to pin 4 on the connector D616.
S 975-029
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A 737-300/400/500MAINTENANCE MANUAL
S 975-030
(7) Use Table 501 to compare the resistance measurement with the temperature of the sensor.
NOTE: The resistance measured by this procedure includes the
____ resistance of the wiring between the indicator and the sensor, approximately 0.8 ohms for 100 feet of wiring.
~............................................................. | Temperature-Resistance Values for Temperature Sensor, T434 | | Table 501 | ............................................................... | TEMPERATURE | RESISTANCE | | (degrees Celsius) | (ohms) | ............................................................... | -30 | 80.56 | 0.40 | ............................................................... | -20 | 83.77 | 0.40 | ............................................................... | -10 | 87.04 | 0.40 | ............................................................... | 0 | 90.38 | 0.40 | ............................................................... | 10 | 93.80 | 0.40 | ............................................................... | 20 | 97.31 | 0.40 | ............................................................... | 30 | 100.91 | 0.40 | ............................................................... | 40 | 104.60 | 0.40 | ............................................................... | 50 | 108.39 | 0.40 | ............................................................... | 60 | 112.28 | 0.50 | 2........................…....................................1
(8) S 435-031Connect the connector, D616, to the fuel temperature indicator in the flight compartment again (WDM 28-42-01).
(9) S 435-032Connect the ground GD2674-DC on the A leg of the temperature sensor wiring to ground again (WDM 28-42-01).
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737-300/400/500MAINTENANCE MANUAL
S 435-034
(10) Do these steps to install the temperature bulb again:
(a)
Hold the temperature bulb by the locking cap.
(b)
Put the fuel temperature bulb into the bulb housing.
(c)
Push the fuel temperature bulb into the housing until it touches the pin.
(d)
Turn the locking cap to lock it around the pin.
S 865-033
(11) Close this circuit breaker and remove the DO-NOT-CLOSE tag:
(a) P6 Main Power Distribution Panel 1) TEMP IND (for the fuel temperature indicating system)
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737-300/400/500MAINTENANCE MANUAL
FUEL TEMPERATURE BULB - REMOVAL/INSTALLATION
____________________________________________
1. General
_______
A. This procedure has two tasks:
(1)
A task to remove the fuel temperature bulb
(2)
A task to install the fuel temperature bulb.
TASK 28-43-11-004-001
2. Fuel Temperature Bulb Removal
_____________________________
A. Access
(1) Location Zone
310 Left Main Landing Gear
B. Procedure
S 864-002
(1) Open this circuit breaker and attach a DO-NOT-CLOSE tag:
(a) P6 Main Power Distribution Panel
1) TEMP IND
S 034-003
(2) Cut the wires that go to the fuel temperature bulb.
NOTE: The fuel temperature bulb is on the aft side of the aft
____ spar. It is on the inboard side of the left main landing gear. It is immediately below the APU shutoff valve.
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