CAUTION: HOLD THE ACTUATOR ASSEMBLY SO WEIGHT IS NOT ON THE SHAFT.
_______ IF THERE IS WEIGHT ON THE SHAFT, DAMAGE TO THE SPLINED SHAFTS CAN OCCUR.
(c) Insert the end of the output shaft into the input shaft, then carefully move the output shaft into the input shaft until the mounting flange of the acutuator touches the gate assembly.
S 424-058
(2)
If the mounting holes of the actuator assembly do not align with the mating holes, carefully turn the actuator assembly until the holes align.
S 434-059
(3)
Install the mounting bolts of the actuator assembly (Fig. 401).
S 214-010
(4)
Clean the O-ring groove in the gate assembly housing and the machined surface of the front spar with solvent.
S 214-009
(5)
Rub all the remaining solvent off with a clean cotton cloth.
S 434-024
(6)
Install a new O-ring (that is lightly lubricated with fuel) into the groove on the gate assembly housing.
S 424-025
(7)
Carefully put the actuator assembly and the gate assembly as a unit into the port adapter through the opening in the front spar.
S 434-026
(8)
Tighten the nuts and the washers for the actuator assembly and the gate assembly to 50-70 pound-inches.
(9)
Turn the thermal anti-ice duct back to its usual position.
(10)
Install the clamp on the thermal anti-ice duct.
S 434-027
S 434-028
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A
737-300/400/500MAINTENANCE MANUAL
S 434-029
(11)
Connect the electrical plug to the actuator assembly and attach it with a lockwire.
S 434-030
(12)
Connect the bonding jumper to the actuator assembly.
S 764-051
(13)
Do the task: "Do a Check of the Electrical Bonding" (SWPM 20-20-00) to make sure the resistance is not more than 0.0025 ohms.
S 414-050
(14)
Close the access door (6212 or 6512) for the shutoff valve you installed.
F. Do an Operational Test of the Shutoff Valve
S 864-043
(1)
Make sure the BOOST PUMP switches on the P5 panel are in the OFF position.
S 864-044
(2)
Remove the DO-NOT-CLOSE tags and close these circuit breakers:
(a) P6 Main Power Distribution Power Panel 1) 6B5 FUEL SHUTOFF VALVE 2) 6D3 SHUTOFF VALVE ENG 2 3) 6D7 SHUTOFF VALVE ENG 1
S 864-045
(3)
Make sure the start lever, on the pilot's control stand, is in the CUTOFF position.
S 864-046
(4)
Make sure the valve position indicator on the applicable shutoff valve is in the closed position.
(5)
Move the start lever to the idle position.
S 714-048
(6)
Make sure the valve position indicator on the applicable shutoff valve moves to the open position.
(7)
Move the start lever to the CUTOFF position.
S 714-047
S 864-049
TASK 28-22-11-004-005
4. Shutoff Valve Port Adapter Assembly Removal___________________________________________
A. Equipment
(1) Bonding Meter - Avtron T477W, Avtron Manufacturing Co.
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
B.
C.
D.
E.
A
737-300/400/500MAINTENANCE MANUAL
(2)
Container - To hold residual fuel from fuel manifoldConsumable Materials
(1)
D00057 - Grease, Airplane, High Temperature - MIL-G-3545
(2) 中國航空網 www.k6050.com 航空翻譯 www.aviation.cn 本文鏈接地址：737-300 400 500 AMM 飛機維護手冊 燃油 FUEL 2(106)
