(d)
If the distance between the centerline of the left neutral shift crank and the aft side of the vertical bulkhead is not in
1.25 |0.03 inch,
Adjust the input rod of the neutral shift:
1) Disconnect the ouput rod of the feel and centering unit
from the aft control quadrant crank. 2) Loosen the checknuts on the input rods.
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A
737-300/400/500
MAINTENANCE MANUAL
FEEL AND CENTERING UNIT
MOUNTING BRACKET
SEE A
FWD
NEUTRAL SHIFT CRANK
SEE B OUTPUT ROD BULKHEAD AFT CONTROL BOLTQUADRANT CRANK
ASSEMBLY
NEUTRAL SHIFT
INPUT ROD
FWD
NEUTRAL
A
SHIFT CRANK
FWD
1.25 |0.03 INCH ADJUST INPUT ROD TO OBTAIN THIS DIMENSION
B
Feel and Centering Unit Input and Output Rod Adjustment Figure 507
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A
737-300/400/500MAINTENANCE MANUAL
3) Remove the bolts that connect the input rods to the neutral
shift crank. 4) Adjust the input rods to get of 1.25 |0.03 inch. 5) Tighten the rod end checknuts on the two rods. 6) Install a lockwire on each checknut.
(e)
Attach the input rods to the neutral shift crank.
(f)
If it is necessary, adjust the neutral shift sensor (AMM 22-11-14/501).
(g)
If it is necessary, adjust the stabilizer position sensor (AMM 22-11-31/501).
(h)
Adjust the output rod of the feel and centering unit. 1) Install the rig pin E-5 in the aft quadrant. 2) Do a check of the alignment of the bolt hole in the output
rod and the bolt hole in the aft quadrant crank.
a) If the alignment difference is more than 0.06 inch, Turn the clevis to get the alignment difference less than 0.06 inch.
b) If the alignment difference is less than 0.06 inch, Turn the sleeve until you can install the bolt easily.
NOTE: Always turn the clevis and the sleeve in the
____ same direction and make sure the number of threads you see are equal in the two parts.
CAUTION: DO NOT TRY TO TIGHTEN THE OUTER BOLT AGAIN AFTER YOU
_______ TIGHTEN THE LOCKNUT. YOU CAN CAUSE DAMAGE TO THE EQUIPMENT
3) Install the bolt assembly. a) Tighten the outer bolt to 75-85 pound-inches. 4) Install the locknut on the end of the inner bolt. a) Tighten the locknut to 15-20 pound-inches. 5) Make sure you see a maximum of 27 threads on the clevis and
the sleeve. 6) Remove the rig pin E-5. 7) If it is necessary, adjust the neutral shift sensor (AMM
22-11-14/501). 8) If it is necessary, adjust the stabilizer position sensor (AMM 22-11-31/501).
S 825-064
(9) Adjust the elevator tab pushrods before you do the Elevator Power Off Flight (Fig. 508):
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A 737-300/400/500MAINTENANCE MANUAL
ELEVATOR TAB
PUSHROD ADJUSTMENT
DO THIS TASK: "ELEVATOR YES AND ELEVATOR TAB
INSPECTION"
(AMM 27-09-91/601)
NO
MEET THE 27-09-91
YESFREEPLAY FOR THE TAB?
MEASUREMENTS AND CALCULATIONS
REQUIRING SKI JUMP TOOL ARE
IF THE ELEVATOR WAS REMOVED/INSTALLED DO THE RIGGING PROCEDURES IN TASK "ELEVATOR INSTALLATION" (AMM 27-31-11/ 401), OR IF THE TAB ONLY WAS REMOVED/ INSTALLED DO THE RIGGING PROCEDURES IN
NOSE UP THE TASK "ELEVATOR TAB CONTROL MECHANISM
AND NOSE DOWN INSTALLATION" (AMM 27-31-31/401).
STAB TRIM WHEEL
TURNS ARE
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