Cessna 1969-1976 172 Series Service Manual page 127

"f"
a s turnbuckles a r e connected.
n. With f l a p s full UP, adjust turnbuckles to obtain
30110 pounds tension on cables. Adjust retract cable
first.
NOTE
Ensure cables a r e positioned i n pulley grooves
and cable ends a r e positioned correctly
at
drive pulleys before tightening turnbuckles.
0 .
Disconnect push-pull rod
at
left drive pulley.
Run motor to extend flaps approximately 20" and
check tension on each flap cable. If necessary, re-
adjust turnbuckles to maintain 30110 pounds tension
on each cable and safety turnbuckles.
p. Fully r e t r a c t right flap. Manually hold left flap
in full up position and readjust push-pull rod to align
with attaching hole in drive pulley. Connect push-
pull rod and tighten locknuts or castellated nuts
and install cotter pins.
NOTE
I
An inclinometer f o r measuring control sur-
face travel is available from the Cessna
Service
Parts Center. Refer to figure 6-4.
q. Mount an inclinometer on one flap and adjust to
0". Extend flaps ,and check down angle.
r. THRU AIRCRAFT SERIALS 17259904 AND
F17200804 WHEN NOT MODIFIED IN ACCORDANCE
WITH FIGURE 7-2, SHEET 3. After completion of
steps
"a" thru
"q", the flap down angle should be
as
specified in figure 1- 1. Repeat down angle check on
opposite flap.
59905, F17200805 AND ALL AIRCRAFT MODIFIED
IN ACCORDANCE WITH FIGURE 7-2, SHEET 3.
After completion of steps
t7arr
through "q", adjust
down-limit switch (32) to operate and shut-off elec-
trical power to motor
at
degree of travel specified
in figure 1- 1. Repeat down angle check on opposite
flap. Check operation of limit switches for positive
shut-off through several cycles.
S.
BEGINNING WITH AIRCRAFT SERIALS 172-
NOTE
Since the flap r o l l e r s may not bottom in the
flap t r a c k s with flaps fully extended, some
free play may be noticed in this position.
t. With flaps full UP, adjust position transmitter
(12) in accordance with paragraph 7- 16.
u. Perform an operational check in accordance
with paragraph 7-3, check all locknuts f o r tightness,
all turnbuckles a r e saftied, cotter pins installed,
and reinstall all items removed for access.
I
Change 2
7-11/(7-12 blank)