Cessna 150 STANDARD Service Manual page 113

TO LEFT
WING FLAP
LEFT PUSH-
PULL ROD
•
FWD
TURNBUCKLES
VIEWED FROM ABOVE
TO RIGHT
WING FLAP
FLAP MOTOR AND
TRANSMISSION
RIGHT PUSH-
PULL ROD
Figure 7-4. Flap System Schematic
cable guards and pulleys as necessary to work cables
free of aircraft.
NOTE
To ease routing of cables, a length of wire
may be attached to the end of cable being
withdrawn from the aircraft. Leave wire
in place, routed through structure; then
attach the cable being installed and use
wire to pull cable into position.
e. Reverse the preceding steps for reinstallation.
f.
Mter cables are routed in position, install pul-
leys and cable guards. Ensure cables are positioned
in pulley grooves before installing guards.
g. Re-rig flap system in accordance with paragraph
7 -16 and safety turnbuckles.
h. Re-rig indicating system in accordance with para-
graph 7-19 and reinstall all items removed in step
"a."
7-16. RIGGING.
a. (Refer to figure 7-1.) Unzip or remove head-
liner as necessary for access to turnbuckles (4).
l
b. Disconnect indicator wire clamp (10) and slowly
release indicator wire (11) until spring (16) tension is
relieved.
c. Remove safety Wire, relieve cable tension, dis-
connect turnbuckles (4) and carefully lower LEFT
flap.
d. (Refer to figure 7-2.) Disconnect push-pull rods
(15) at drive pulleys (14) in both wings and lower
RIGHT flap gently.
e. Disconnect actuating tube (5) from drive pulley
(14).
NOTE
If control cables are not connected to left
and right drive pulleys, actuating tube (5)
and push-pull rods (15) must be discon-
nected before installing cables. If drive
pulleys (14) are not installed, attach con-
trol cables before installing drive pulleys
in the wings as illustrated in figure 7-4.
f.
Adjust both push-pull rods (15) to 8. 83±.12
inches between centers of rod end bearings and
tighten locknuts on both ends. Connect push-pull
rods to flaps and drive pulleys.
NOTE
Temporarily connect cables at turnbuckles
(index 4, figure 7-1) and test flaps by hand
to ensure both flaps extend and retract to-
gether. If they will not, the cables are in-
correctly attached to the drive pulleys.
Ensure that the right drive pulley rotates
clockwise when viewed from below, as the
flaps are extended. Tag cables for refer-
ence and disconnect turnbuckles again.
Change 1 7-9