Cessna T188C - Mixture Control; Throttle Control

MODEL
188
& 1188
SERIES
SERVICE
MANUAL
I Disconnect
throttle
control
(21)
rod
end
5 Release
friction
lock,
pull
throttle
lever
aft
from
bellcrank
(4)
on airbox
(13).
and check
that
control
arm (17)
contacts
stop
at idle
2.
Disconnect
throttle
control
rod
assembly
position.
(18) from
control
arm (17)
on throttle
body.
6.
Check
that
sufficient
threads
are
engaged
3.
Adjust
throttle
control
rod
assembly
(18)
to
in
throttle
control
(21)
rod
end
and
tighten
jam
nut.
its
shortest length
and reconnect
rod to arm
on
throttle
body.
NOTE
4.
In the
cockpit.
push
throttle
control
lever
full
forward.
then
pull
lever aft
approximately
1/8-
Refer
to the
inspection
chart
in Section
2
inch
from full
forward for
cushion
and tighten
for
inspection,
lubrication
and/or
replace-
friction control
knob on
quadrant to
prevent
ment
interval for
the throttle control.
movement of lever.
5.
Move
control
arm (17)
on throttle
body
to
11A-65.
MIXTURE
CONTROL.
full
OPEN position
(against
stop).
adjust
throttle
a.
(THRU AIRCRAFT
SERIAL
18800832.)
(See
control
(21) rod end
to align with
bellcrank
(4) and
figure 11A-6,
sheets 1,
2 and 3.)
aft
and check that
control arm
on throttle
body
contacts
stop
at idle position.
Whenever
mixture
control is
disconnected
7 Tighten
all
jam nuts
and ensure
sufficient
at the
engine.
pay particular
attention
to
threads are
engaged in rod
ends.
the EXACT
position.
size and number
of
attaching
bolts
and washers.
Be sure
to
NOTES
install
attaching
parts as
noted when
reconnecting controls.
The
result of
rigging. in
all cases,
is the
throttle
control
must be
rigged
so that the
1.
Disconnect
mixture
control
(22) rod
end
control arm (17) on
the throttle body
from bellcrank (3)
on airbox (13).
contacts
the mechanical
stops in
both
2. Disconnect
mixture
control
rod
assembly
directions,
that the
throttle lever
has
(20)
from control
arm (16).
approximately
1/8-inch
cushion
at
the
3. Adjust
rod assembly
(20)
to dimensions
control
quadrant
when in full
OPEN
shown
in VIEW A-A.
sheet 2 and
connect rod
position
and that the
small retaining
ring
assembly
(20)
to control arm
(16).
at the engine
end
of the control
just
clears
4.
In the cockpit.
carefully
pull
mixture
the end of control housing
when the idle control
OUT until retaining ring
at the engine end
stop
is reached.
of the
control contacts
control housing,
then push
control IN
until retaining
ring just olears
housing.
Refer
to the
inspection
chart in Section
2
Maintain
this
position.
for
inspection
and/or replacement
5.
Move control
arm
(16) against
idle cut-off
interval
for the
throttle control.
stop (24) and
adjust
mixture
control (22)
rod end
to
align with
bellcrank
(3) and connect
in this
b. (BEGINNING
WITH AIRCRAFT
SERIAL
position.
18800833.)
(See figure
11A-6, sheet
4.)
6. Push
mixture
control full
IN and
check
that
control
arm
(16)
is
against
FULL
RICH
stop.
CAUTION
Tighten all jam nuts and
ensure sufficient threads
are
engaged
in
rod ends.
Whenever throttle control is disconnected
at the engine,
pay particular attention
to
NOTES
the EXACT position. size and number of
attaching bolts and washers.
Be sure to
The result of rigging,
in all cases, is the
install attaching
parts
as noted when
mixture
control must
be rigged so
that
reconnecting
controls.
the control
arm (16) contacts
the stops
in
both
directions,
that
the
mixture
control
1. Disconnect
throttle control
(21) rod end
has approximately
1/8-inch
cushion when
from
arm (17).
pushed
full IN
and that
the
small
2. In
the cockpit.
push throttle
control lever
retaining
ring at
the engine
end of the
full
forward,
then pull
lever aft
approximately
1/8-
control
just clears
the
end of control
inch from
full forward for
cushion and
tighten
housing
when the
idle cut-off
stop is
friction control
knob on quadrant
to prevent
reached.
movement of lever.
3. Be
sure control
(22) is attached
to the
· Refer
to the inspection
chartin
Section 2
bracket
(26) properly
and safety wire/retainer
is
for
inspection, lubrication
and/or
replace-
installed
ment interval
for the mixture control.
4. Move
control
arm (17) on throttle
body
(30)
to full OPEN
position
(against stop
). adjust
b (BEGINNING
WITH
AIRCRAFT
SERIAL
throttle
control (21) rod end to align
with arm (17) 18800833.)
(See figure 11A-6, sheet
4.)
and install
attaching
bolt and washers.
11A-20
Revision
1