ADJUSTING NUTS
CHAIN MOVEMENT
0.25 |0.07 INCH
4.5 |1.0 INCHES
B
11. AFT SUPPORT
5. FORWARD LINK
MECHANISM
SPROCKET
UPPER
ADJUSTING NUT
(2 LOCATIONS)
A
AFT EYEBOLT THREAD EXTENSION (2 LOCATIONS)
VIEW IN THE FORWARD DIRECTION
LINK
D
COTTER PIN (2 LOCATIONS)
FORWARD
EYEBOLT
THREAD
12. FORWARD EXTENSION
SUPPORT LINKUPPER
CHAIN LINKS
ADJUSTING
NUT
C
VIEW IN THE FORWARD DIRECTION E
Forward Mechanism and Chain Installation Figure 401 (Sheet 2)
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27-41-41
ALL ú ú 01 Page 403 ú Nov 15/92
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
B-B
Forward Mechanisim and Chain Installation Figure 401 (Sheet 3)
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27-41-41
ALL ú ú 01 Page 404 ú Nov 15/92
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
SEE A TRAMMEL BAR F80055-1
"B" DIMENSION
1
FWD
A
TEMP `F CABLE RIGGING LOAD (+40/-10)
POUNDS STA AND STB CABLES
NOTE:____ THE STABILIZER TRIM JACKSCREW SHOWN
WITH THE STABILIZER LEADING EDGE AT 110 148
ZERO DEGREES. 90 139
NOTE:____ TO GET THE CORRECT CABLE 70 130
TENSION, LET THE AIRFRAME 50 122
TEMPERATURE BECOME STABLE 30 114
FOR A MINIMUM OF ONE HOUR 10 105
AT CONSTANT AMBIENT TEMPERATURE -10 97
|5 DEGREES. -30 89
-40 84
1 THE "B" DIMENSION IS MEASURED BETWEEN THE
CENTER OF THE UPPER AND LOWER GIMBAL PINS
TABLE A
Stabilizer Cable Tension and Trim Jackscrew Setting
Figure 402
L86898
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A
737-300/400/500MAINTENANCE MANUAL
S 014-033
(5) Open the access door 1103.
S 824-010
CAUTION: MAKE SURE THE CHAIN IS LOOSE BEFORE YOU RELEASE THE CABLE
_______ TENSION. YOU CAN APPLY TOO MUCH RIGGING LOAD AND CAUSE DAMAGE TO THE CHAIN.
(6)
Adjust the aft support linkage of the forward mechanism to loosen the chain.
S 824-011
(7)
Loosen the turnbuckle (7) to release the cable tension.
S 034-012
(8)
Remove the drip shield (if installed) from the bottom of the gear housing.
S 034-014
(9)
Remove the cable guards (3).
S 034-015
(10)
Remove the STA cable from the bottom of the drum (4) and tag for installation.
(a)
Put a 50 pound load on the trim control wheel to extend the STB cable.
NOTE: This will make the removal of the STA cable easier.
____
S 034-016
(11)
Disconnect the flexible shaft (2) from the forward mechanism.
S 824-017
(12)
Turn the trim control wheel until the chain connector link is between the idler sprocket (9) and the forward mechanism sprocket (5).
S 034-018
(13)
Disconnect the chain assembly (10) at the connector link.
(a)
Make sure the loose ends of the chain are clear of the forward mechanism.
S 034-019
(14)
Remove the STB cable from the top edge of the drum (4) and tag for installation.
(15)
Remove the turnbuckle mounting bolt (6).
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