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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
S 862-075
CAUTION: AUTOMATIC OPERATION OF FLIGHT CONTROL SURFACES CAN CAUSE DAMAGE
_______ AND INJURY.
(8)
Position the flaps to ten units using "B" system hydraulic pressure.
S 862-045
(9)
Put the left and right alpha vanes at the zero position.
S 862-046
(10)
Verify the indicator on the bypass valve is at Position 1 (OPEN).
S 862-047
(11)
Put the landing gear lever in the OFF position.
S 862-048
(12)
Rotate the AOA vane counterclockwise to the stops.
S 862-049
(13)
Verify the indicator on the bypass valve moves to Position 2 (CLOSED). After the indicator shows that the valve is in the CLOSED position, listen to the valve motor and make sure that the motor is not operating.
S 862-050
(14)
Rotate the AOA vane clockwise back to its "zero" position.
S 862-051
(15)
Verify the indicator on the bypass valve moves to position 1 (OPEN). After the indicator shows that the valve is in the OPEN position, listen to the valve motor and make sure that the motor is not operating.
(16)
Position the flaps to the full up position.
S 862-053
(17)
Reconnect the push pull cable to the right hand main gear upper torsion link (no adjustment is necessary).
(18)
Restore the aircraft to normal condition.
S 862-052
S 442-054
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737-300/400/500MAINTENANCE MANUAL
B. Do an Inspection of the Flow Limiter Bypass Valve for Airplanes that Have STALL MANAGEMENT COMPUTERS
S 862-074
(1) Supply electrical power (AMM 24-22-00/201).
S 492-078
WARNING: MAKE SURE THE GROUND LOCK ASSEMBLIES ARE INSTALLED ON ALL THE
_______ LANDING GEAR. WITHOUT THE GROUND LOCKS, THE LANDING GEAR CAN RETRACT AND CAUSE INJURIES TO PERSONS AND DAMAGE TO EQUIPMENT.
(2)
Make sure the ground lock assemblies are installed in the nose and main landing gear (AMM 32-00-01/201).
S 862-056
(3)
Put the landing gear lever in the down position.
S 862-057
(4)
Make sure these circuit breakers are closed:
(a)
P6 Main Power Distribution Panel
1) PTU/LG BYPASS CONTROL 1
2) TE FLAP POS IND
3) FLAP SHUTOFF VALVES
4) HYD SYS LG SYS XFR VALVE PRIMARY CONTROL
5) AUTOSLAT NO. 1, DC
6) AUTOSLAT NO. 2, DC
(b)
P18-2 Panel
1) SMC-1 CMPTR DC
2) SMC-1 SNSR EXC AC
S 862-072
(5)
Make sure these circuit breakers are opened:
(a)
P6 Panel 1) NOSE GEAR AIR/GND - ensures airplane is in AIR mode 2) STDBY HYD PUMP - NORMAL 3) STDBY HYD PUMP - ALT 4) PTU/LG BYPASS VALVE CONT 2
S 862-058
(6) Put the aircraft main gear in air mode by disconnecting the push pull cable from the right hand gear upper torsion link and extending the cable.
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ALL ú ú 01 Page 206 ú Jul 12/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
S 862-059
(7) Supply "B" system hydraulic pressure by means of the "B" system electric motor pump AMM (29-15-00/201).
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