B.
Adjust the steering cables wheel steering system consists of rigging the nose wheel steering cables. You can adjust the steering system to operate the steering metering valve by the steering wheel or the rudder pedal steering. In general, it is necessary to adjust the cables when the tension values deviate from the values given in Table I more than +15/-5 pounds. You must let the cable temperatures to become stable at least 1 hour before you try to adjust and/or check the cable tension.
TASK 32-51-00-805-001
2. Rudder Pedal Steering System Adjustment
________________________________________
A. Standard Tools and Equipment
(1)
Rigging Pins Kit- F70207-107
(2)
Cable Tensiometer
(3)
Shim - 0.050-inch
B.
References
(1)
AMM 32-00-01/201, Ground Lock Assemblies
(2)
AMM 29-15-00/201, Hydraulic Systems A and B
(3)
AMM 07-11-21/201, Jack Airplane
C.
Prepare to Adjust the Steering System of the Rudder Pedal
S 495-086
WARNING: MAKE SURE THE GROUND LOCK PINS ARE INSTALLED ON ALL THE LANDING
_______ GEAR. WITHOUT THE GROUND LOCK PINS, THE LANDING COULD RETRACT AND CAUSE INJURIES TO PERSONS AND DAMAGE TO EQUIPMENT.
(1)
If the groundlock pins are not installed on all the landing gear, do this task: Install the ground lock assemblies (AMM 32-00-01/201).
(2)
Remove the pressure from the hydraulic system A (AMM 29-15-00/201).
S 825-006
(3)
Align the marker on the steering collar with the marker on the steering collar bearing to adjust the nose wheels.
S 865-003
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32-51-00
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
S 015-079
WARNING: MAKE SURE THE PERSONS ARE CLEAR OF THE LEADING EDGE SLATS.____
_______ THE LEADING EDGE SLATS WILL MOVE AUTOMATICALLY (UNLESS YOU CAN PREVENT) DURING MAINTENANCE WHEN ONE OF THE TWO HYDRAULIC SYSTEMS IS PRESSURIZED AND THE TRAILING EDGE FLAPS ARE IN POSITION 1, 2 OR 5. AND ALSO, IF THE AIR/GROUND RELAYS CAN SENSE AN AIRBORNE CONDITION. ANY MOVEMENT OF THE LEADING SLATS CAN CAUSE INJURY TO PERSONS.
(4)
Open the AIR/GND circuit breaker of the NOSE LANDING GEAR on the P6 panel.
S 035-008
(5)
Disconnect the idler link from the eccentric crank on the steering mechanism of the rudder pedal.
S 435-009
(6)
Safety the clutch arm until the arm will not touch the cam followers on the eccentric crank.
S 225-010
(7)
Make sure you align the index marks on the steering actuator of the rudder pedal in 5 degrees or less.
S 495-011
(8)
Install the rig pins 1 and 5.
D.
Prepare to Tighten the Cables NGPPA and NGPPB.
S 825-080
(1) Adjust the cable tension until the load necessary to move the cable
0.50 | 0.05 inch at the turnbuckle is 16 - 22 pounds (as measured with a spring scale).
NOTE: It is not necessary to do an initial extension of the cables
____ when you replace the cables NGPPA and NGPPB.
S 095-012
(2)
Remove the rig pins 1 and 5.
S 715-013
(3)
Operate the actuator five times (open and close the AIR/GND circuit breaker of the nose landing gear on the P6 panel).
S 215-014
(4)
With the AIR/GND circuit breaker open, make sure you install the rig pins 1 and 5 correctly.
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ALL ú ú 02 Page 502 ú Jul 15/98
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
S 825-015
(5)
If it is necessary, adjust the cable turnbuckles.
S 015-016
(6)
Open the AIR/GND circuit breaker of the NOSE LANDING GEAR on the P6 panel.
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