27-21-94
ALL ú ú 01 Page 204 ú Nov 15/91
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
TASK 27-21-94-402-046
5. Valve Motor Installation (Fig. 201)
________________________
A. Access
(1)
Location Zones
216 Left Main Wheel Well
B.
Procedure
S 862-073
(1)
Move the manual override lever on the valve motor to position 2.
S 422-074
(2)
Put the valve motor on the valve and engage it with the valve cam.
S 422-075
(3)
Install the four screws to attach the valve motor to the valve.
S 422-076
(4)
Install lockwire on the screws.
S 422-077
(5)
Connect the electrical connector to the valve motor.
S 712-078
(6)
Do the task that is below to do a test of the shutoff valve.
TASK 27-21-94-712-047
6. Standby Rudder Actuator Shutoff Valve Test (Fig. 201)
__________________________________________
A. References
(1)
24-22-00/201, Manual Control
(2)
27-21-00/201, Rudder and Rudder Trim Control System
B.
Access
(1)
Location Zones
101 Control Cabin - Left
216 Left Main Wheel Well
C.
Procedure ú ú S 862-079 ú (1) Supply electrical power (AMM 24-22-00/201).
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
27-21-94
ALL ú ú 02.1 Page 205 ú Jul 12/02
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
ú ú S 862-104 ú (2) Supply hydraulic pressure (AMM 27-21-00/201).
S 862-080
(3)
Make sure these circuit breakers are closed and remove the DO-NOT-CLOSE tags:
(a)
P6 panel,
1) FLT CONTR
2) STBY RUD
S 212-081
(4)
Make sure the FLIGHT CONTROL A and B switches (on the upper left corner of the pilot's overhead panel) are in the ON position.
S 212-082
(5)
Make sure the manual override lever on the shutoff valve is at position 1.
S 862-083
WARNING: KEEP PERSONS AND EQUIPMENT AWAY FROM THE RUDDER WHEN YOU SUPPLY
_______ HYDRAULIC POWER. THE RUDDER CAN MOVE AND CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT WHEN YOU SUPPLY HYDRAULIC POWER.
(6)
Put the FLIGHT CONTROL A switch to the STDBY RUD position and put the FLIGHT CONTROL B switch to the OFF position.
S 212-098
(7)
Verify the B FLT CONTROL LOW PRESSURE light is on.
S 212-084
(8)
Make sure the manual override lever on the shutoff valve is at position 2.
S 712-085
(9)
Move the rudder pedals to the left forward stop and to the right forward stop at a high rate for a total of 5 times each.
NOTE: The rudder will move left if you push the left rudder pedal.
____ The rudder will move right if you push the right rudder pedal.
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
27-21-94
ALL ú ú 02.1 Page 206 ú Jul 12/02
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
S 712-099
(10)
Move the left rudder pedal full left and slowly release.
(a)
Make sure that the rudder pedal returns to the neutral position.
S 712-100
(11)
Move the right rudder pedal full right and slowly release.
(a)
Make sure that the rudder pedal returns to the neutral position.
S 792-044
(12)
Make sure there is no hydraulic fluid leakage from the shutoff valve.
S 212-097
(13)
Put both the FLIGHT CONTROL A and FLIGHT CONTROL B switches to the ON positions.
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