Cessna 150K - Removal and Installation

6-3. TROUBLE SHOOTING (Cont).
TROUBLE
PROBABLE CAUSE REMEDY
RESISTANCE
TO CONTROL
Cables too tight.
Adjust cables to proper tension.
WHEEL MOVEMENT.
Pulleys binding or cable off.
Replace defective pulleys.
Install
cables correctly.
Bellcrank distorted or
Replace bellcrank.
damaged.
Defective U-joints.
Replace defective U-joints.
Clevis bolts in system too
Loosen, then tighten properly
tight.
and safety.
Rusty chain or chain binding
Replace chain or defective
with sprocket.
parts.
CONTROL WHEELS NOT
Improper adjustment of chains
Adjust in accordance with
LEVEL WITH AILERONS
or cables.
paragraph 6-15.
NEUTRAL.
Improper adjustment of
Adjust in accordance with
aileron push-pull rods.
paragraph 6-15.
DUAL CONTROL WHEELS
Chains improperly adjusted.
Adjust in accordance with
NOT COORDINATED.
paragraph 6-15.
INCORRECT AILERON
Push-pull rods not adjusted
Adjust in accordance with
TRAVEL.
properly.
paragraph 6-15.
Worn bell crank stop bushings
Replace worn parts.
on bellcrank slots.
6-4. CONTROL "Y". (Refer to figure 6-2.)
b. Release cable tension by loosening turnbuckle
(index 3, figure 6-1).
6-5. DESCRIPTION. The control "Y" transforms
rotation of the control wheels into pulling motion on
the aileron cables by means of sprockets and chains.
The "Y" is pivoted at the lower end to operate the
elevator control system.
6-6. REMOVAL AND INSTALLATION.
a. Remove control cover and carpeting as necessary
to gain access to lower end of control "Y".
6-2
c. Remove bolt (17) attaching control link (14).
d.
Remove bolts (8) securing control wheel tubes
(9) to universal joints (7).
e. Remove bolts securing cable ends to control
arm (5).
f.
Remove pivot bolt (16) and remove control "Y".
g. Reverse preceding steps for installation.
h. Rig aileron system in accordance with applicable
paragraph in this section, safety turnbuckle and re-
install all items removed in step "a".