(b)
Install the hinge bearing bolt with the bolt head outboard.
(c)
Install a washer below the bolt head and a washer below the nut.
(d)
Tighten the nut to 60-85 pound-inches.
(e)
Align the nut with the cotter pin hole, but do not tighten the nut more than 140 pound-inches.
(f)
Install the cotter pin.
(g)
Reinstall and seal the hole plugs.
S 434-021
(4)
Install seals at the stabilizer trailing edge ribs No. 1 thru 4 (Fig. 402):
(a)
Set and hold the elevator aligned with the stabilizer during the seal adjustment.
(b)
At the stabilizer trailing edge rib No. 3, adjust the flat seal to maintain 0.03 +0.03/-0.03-inch clearance between seal and the hinge fitting.
(c)
At the stabilizer trailing edge rib No. 2, adjust the bulb seal to maintain 0.03 +0.03/-0.03-inch clearance.
(d)
At the stabilizer trailing edge ribs No. 1, 2, 3, and 4, adjust the bulb seals to maintain a gap of 0.03 + 0.03/-0.03 inch.
(e)
At the stabilizer trailing edge rib No. 4, adjust the bulb seal on the nose rib to maintain a gap of 0.03 +0.03/-0.03 inch.
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A
737-300/400/500
MAINTENANCE MANUAL
SEE A
ELEVATOR HINGE LOCATION FITTING NO. 3
ELEVATOR HOISTING ADAPTER
ELEVATOR HINGE FITTING NO. 4 LOCATION
ELEVATOR FRONT SPAR
FWD
A
Elevator Hoisting Adapter Figure 404
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A
737-300/400/500MAINTENANCE MANUAL
(f) At the stabilizer trailing edge rib No. 1, adjust the bulb seal on the nose rib to maintain a clearance of 0.03 +/- 0.03 inch.
S 434-032
CAUTION:_______ MAKE SURE THE IDLER HINGE MOVES DOWN FROM THE STABILIZER
SUPPORT BEAM WHEN YOU ATTACH THE BALANCE PANEL TO THE ELEVATOR.
FAILURE TO INSTALL THE BALANCE PANEL CORRECTLY CAN CAUSE DAMAGE
TO THE ELEVATORS.
(5)
Attach the balance panels to the elevator:
(a)
Make sure you install the following: 1) Install the Pins
OUTPUT TORQUE
TUBE
ROD END BOLT
ELEVATOR
ELEVATOR
ELEVATOR
SEE A CONTROL
PUSHROD
PUSHROD INDEX
BOLT MARK
AFT CONTROL QUADRANT FWD RIGGING PIN E-5 A TAIL CONE
Elevator Control Linkage Figure 405
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737-300/400/500MAINTENANCE MANUAL
2) Install the Washers
3) Install the Hinge Halfs
4) Install the Bolts
5) Install the Seal
(b) Make sure you install the hinge seal correctly before tightening the bolts and locking the Pins.
S 434-019
(6)
Connect the tab pushrods and the tab control mechanism:
(a)
Connect the crank arms to the horizontal stabilizer.
(b)
Install the tab pushrods: 1) Install the aft mounting bolts of the tab pushrod. 2) Install the outboard bolt with the bolt head outboard and
the inboard bolt with the bolt head inboard. 3) Install the nut and the washer on each aft mounting bolt.
NOTE: Make sure that a new nut is installed.
Balance Panel Installation
Figure 406
