(a)
Remove the rigging pin 5.
(b)
Release the clutch arm.
NOTE: The spring will load the clutch arm against the cam
____ rollers to adjust the eccentric crank.
(c) If it is necessary, adjust the idler link.
NOTE: The bolt must install correctly through the eccentric
____ crank and the idler link.
(d) Install the bolt, the washer, and the nut.
NOTE: The rigging pins 1 and 5 must install correcly with
____ the clutch arm held off the cam follower.
(e)
Remove the rigging pin 1.
(f)
Install the clips to lock the turnbuckles of the cables NGPPA and NGPPB.
(g)
Make sure you remove the rigging pin 1 from the quadrant.
(h)
Make sure you remove the rigging pin 5 from the position cable drum.
(i)
Close the AIR/GND circuit breaker of the NOSE LANDING GEAR on the P6 panel.
(j)
Do a test on the steering system of the nose wheel (refer to paragraph 2).
TASK 32-51-00-805-017
3. Nose Wheel Steering System Adjustment
______________________________________
A. Standard Tools and Equipment
(1)
Rigging Pins Kit - F70207-107
(2)
Cable Tensiometer
(3)
Aluminum sheet, 2.0 inches X 1.0 inch X +/- .05 inch
B.
References
(1)
AMM 07-11-21/201, Jack Airplane
(2)
AMM 29-15-00/201, Hydraulic Systems A and B
(3)
AMM 32-00-01/201, Ground Lock Assemblies
C.
Prepare to Adjust the Steering System of the Nose Wheel
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A
737-300/400/500
MAINTENANCE MANUAL
TURNBUCKLES
NWSB
NWSA
SEE A
SEE B TURNBUCKLE (NWSB)
NGPPA
TURNBUCKLE NGPPB
(NWSA)
NWSB SEE C SEE D NWSA
TURNBUCKLE
NWSA
NWSB FWD
TABLE I 1
RIG LOAD (LBS) 3TEMPERATURE `F 2
130 56
11051
9046
7040
5035
3029
10 24
-10 18
-22 15 4
-30 13 4
-40 10 4
1 RIG LOADS WHEN INSIDE AND OUTSIDE TEMPERATURES OF AIRPLANE ARE THE SAME
2 AMBIENT TEMPERATURE (`F) OF AIRPLANE WITHIN |5`F. AMBIENT TEMPERATURE SHOULD BE STABLE FOR ONE HOUR PRIOR TO RIGGING
3 CABLE LOADS MUST BE WITHIN (+10/-0) POUNDS OF VALUES SHOWN WHEN SYSTEM IS BEING RIGGED. AFTER INITIAL RIGGING, ANY DEVIATION OF (+15/-5) POUNDS, AT -22`F OR ABOVE, SHALL REQUIRE THAT THE SYSTEM BE RERIGGED
4 AT TEMPERATURES BELOW -22`F, MINIMUM ALLOWABLE CABLE LOAD SHALL BE 10 POUNDS
Nose Wheel Steering Adjustment Figure 501 (Sheet 1)
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
CLUTCH ARM CABLE NGPPA CABLE NGPPB QUADRANT NWSA RIGGING PIN 1
IDLER LINK NWSA
AIRPLANE STRUCTURE ECCENTRIC CRANK CABLE DRUM RIGGING PIN 5 RUDDER PEDAL STEERING CONTROL ROD
FWD
A
DRUM HOUSING
SIDEWALL
NWSB STEERING WHEEL B RIGGING PIN 2 FWD
Nose Wheel Steering Adjustment Figure 501 (Sheet 2)
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
CAPTAIN'S RUDDER PEDALS
BEAM FLOOR CABIN
C (2 LOCATIONS) FWD RIGGING PIN 3
RIGGING PIN 4 NWSB NWSA
BOLT
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