AND DAMAGE TO EQUIPMENT.
(5)
Do this task: "Pressurize the Elevator Hydraulic Systems A and B" (Ref 27-31-00/201).
S 865-008
(6)
Set the FLT CONTROL A switch on the P5 Pilots' Overhead Panel to OFF and the FLT CONTROL B switch to ON.
S 225-009
(7)
Do a check of the distance from the trailing edge of the right elevator to the index mark.
ELECTRICAL CONNECTOR
"B"
TRAMMEL BAR
ELECTRICAL CONNECTOR
DIM 1
NOTE: THE STABILIZER TRIM JACKSCREW IS SHOWN WITH THE STABILIZER LEADING EDGE AT
FWD
ZERO DEGREES
1
THE "B" DIMENSION IS MEASURED BETWEEN THE
CENTER OF THE UPPER AND LOWER GIMBAL PINS
Stabilizer Trim Jackscrew Setting Figure 502
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A
737-300/400/500MAINTENANCE MANUAL
(8) S 865-010Set the FLT CONTROL B switch to OFF.
(9) S 035-011Loosen the checknuts on the input rod of the right PCU, but do not change the rod length. (a) If it is necessary, get access to the checknuts: 1) Remove the rig pin E-5. 2) Push the elevator trailing edge down to get access to the checknuts.
S 865-012
(10)
Put the elevator to the neutral position:
(a)
Push the elevator back to align the elevator trailing edge with the index mark on the tail cone.
(b)
Set the FLT CONTROL B switch to ON.
(c)
Move the control column lightly in a longitudinal direction to make sure the control column is in the center. 1) Release the control column.
(d)
Set the FLT CONTROL B switch to OFF.
(e)
Install the rig pin E-5.
S 825-014
(11)
If the distance from the trailing edge to the index mark is more than 0.4 inch, Adjust the right input rod:
(a)
Disconnect the lower end of the input rod from the quadrant crank.
(b)
Adjust the input rod to align the elevator trailing edge and the index mark to less than 0.4 inch.
(c)
Install the lockbolt assembly with the washer below the bolt head.
(d)
Tighten the outer bolt to 75-85 pound-inches.
CAUTION: DO NOT TRY TO TIGHTEN THE OUTER BOLT AGAIN AFTER YOU
_______ TIGHTEN THE LOCKNUT. IF YOU TIGHTEN THE OUTER BOLT AGAIN YOU CAN CAUSE DAMAGE TO THE EQUIPMENT.
(e) Install the locknut with the washer on the end of the inner bolt. 1) Tighten the locknut to 15-20 pound-inches.
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A 737-300/400/500MAINTENANCE MANUAL
S 865-015
(12)
Set the FLT CONTROL B switch to ON.
S 825-016
(13)
If the distance from the trailing edge to the index mark is less than 0.4 inch, Adjust the sleeve of the right in put rod:
(a)
Turn the sleeve until the trailing edge of the elevator aligns with the index mark in 0.06 inch.
(b)
Tighten the two checknuts on the input rod.
1) If it is necessary, get access to the checknuts: a) Set the FLT CONTROL B switch to OFF. b) If it is necessary, remove the rig pin E-5. c) Push the elevator trailing edge down to get access to
the checknuts.
(c) Put the elevator to the neutral position.
1) Make sure you install the rig pin pin E-5.
S 865-017
(14)
Make sure the FLT CONTROL B switch is in OFF.
S 865-053
(15)
Set the FLT CONTROL A switch to ON.
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