2. Remove tee bar with assembled parts from airplane as follows:
a. Remove access panel or door to the aft section of fuselage.
b. Relieve cable tension from stabilator control cables at one of the stabilator cable turnbuckles in the
aft section of fuselage.
c. Relieve tension from aileron control cables and chains and at turnbuckle that connects chains at
top of tee bar.
d. Disconnect control chains from control cables where chains and cables join by removing cotter
pins, nuts, bolts, and bushings.
e. Remove tunnel cover as follows:
Remove fuel selector and rudder trim covers by removing knobs and attaching
screws. Disconnect fuel indicator control lever from fuel selector torque tube
by removing attaching pin located at bottom of lever. Remove tunnel plate,
located just aft of tee bar, by laying back enough tunnel carpet to remove plate
attaching screws.
f. Remove two aileron control cable pulleys attached to lower section of tee bar by removing pulley
attaching bolt.
g. Disconnect stabilator controls from lower end of tee bar assembly.
h. Disconnect necessary controls (mixture control, throttle control, etc.) that will allow tee bar
assembly removal.
i. Remove tee bar assembly by removing attaching bolts, washers, and nuts, which are through each
side of floor tunnel. Lift it up and out through right side of cabin.
INSTALLATION OF CONTROL COLUMN ASSEMBLY (figure 27-2)
l. Install tee bar assembly as follows:
a. Swing tee bar assembly into place from right side of cabin and secure with attaching bolts,
washers, and nuts inserted through each side of floor tunnel.
b. Connect stabilator controls to lower end of tee bar with bolt, washer, nut, and cotter pin. Allow
cable ends to rotate freely.
c. Place aileron control cables around pulleys that attach to lower section of tee bar, position pulleys
and secure with bolt, washers, and nut.
d. Install control wheel per step 2.
e. Place control wheels in neutral (centered) position and install aileron control chains on control
wheel sprockets and idler crossover sprockets. This turnbuckle must be centered between two
control wheel sprockets.
f. Loosen connecting bolts of idler sprockets to allow chain to fit snug around control wheel
sprockets and over idler sprockets.
g. Connect aileron control cables to ends of chains with bolts, bushings, nuts, and cotter pins.
h. Adjust chain turnbuckle between two control wheel sprockets to allow control wheels to be neutral
and obtain proper cable tension. It may be necessary, in order to have both control wheels neutral,
to set chain turnbuckle to neutralize wheels and then set cable tension with turnbuckles located
under floor panel aft of main spar as instructed in Rigging and Adjustment of aileron Controls.
Before safetying turnbuckle, check that when ailerons are neutral, control wheels will be neutral
and chain turnbuckle centered. Also, aileron bellcranks should contact their stops before control
wheel hits its stop. Maintain 0.030 to 0.040 clearance between sprocket pin and adjustable stop
bolts on models having adjustable aileron tee bar stops.
27- 04 - 00
Page 27 - 11
Reissued: August 1, 1986
1K10
PIPER AIRCRAFT
PA-28-236
MAINTENANCE MANUAL
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