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PART 7-3- F. M. X. AUTOMATIC TRANSMISSION
7-89
moving
the
dipstick from the filler
tube.
5. Pull
the
dipstick out of the tube,
wipe
it
clean, and push it all the way
back
into
the tube.
6. Pull the dipstick out of the tube
again, and check the fluid level. If
necessary, add enough fluid to the
transmission through the filler tube
to
raise the fluid level to the F (full)
mark on the dipstick. Do not overfill
the transmission.
TRANSMISSION FLUID DRAIN
AND REFILL
Normal maintenance and lubrica-
tion requirements do not necessitate
periodic automatic transmission fluid
changes.
If
·
a
major failure, such as a clutch
band, bearing, etc., has occurred in
the transmission, it will have to be
removed for service. At this time
the couverter,
transmission cooler
and cooler lines must be thoroughly
flushed to remove any dirt.
When filling a dry transmission
and converter, install five quarts of
fluid. Start the engine, shift the se-
lector lever as
in
step 7 below, and
check and add fluid as
necessary.
Following are the procedures for
partial drain and refill due to in-ve-
hicle repair operation.
1. Raise the vehicle on a hoist or
jack stands.
2. Place a drain pan
under
the
transmission.
3. Loosen the pan attaching bolts
to drain the fluid from the transmis-
sion.
4. After the fluid has drained to
the level of the pan flange, remove
the rest of the pan bolts working
from the rear and both sides of the
pan to allow it to drop and drain
slowly.
5. When the fluid has stopped
draining from the transmission, re-
move and thoroughly clean the pan
and the screen. Discard the pan
gasket.
6. Place a new gasket on the pan,
and install the pan on the transmis-
sion.
7. Add three quarts of fluid to the
transmission through the filler tube.
8.
Run the engine at idle speed
for about two minutes, and then run
it at fast idle speed (about 1200 rpm)
until it reaches its normal
op~rating
temperature.
Do not
race the
engine.
9. Shift the selector lever through
all the positions, place it at P, and
check the fluid level. If necessary,
add enough fluid to the transmission
to raise the level to the F (full) mark
on
the dipstick. Do
not overfill
the
transmission.
OIL COOLER FLUSHING
PROCEDURE
When
a clutch or band failure or
other internal trouble. has occurred
in the transmission, any metal par-
ticles or clutch plate or band mater-
ial that may have been carried into
the cooler should be removed from
the system by flushing the cooler and
lines before the transmission is put
back into service. In no case should
an automatic transmission having a
clutch or band failure or other in-
ternal trouble resulting in fluid con-
tamination, be put back into service
without first flushing the transmission
oil cooler.
1. After installing a
new
or re-
built
automatic
transmission
and
converter assembly in the vehicle,
do
not
connect the cooler return line
to the transmission. Place the trans-
mission selector lever in the P (park)
position and connect the cooler inlet
(converter out) line to the transmis-
sion. Place a pan under the end of
the cooler return line that will hold
transmission fluid
.
Do not
start the
engine.
2. Install 5 quarts of automatic
transmission
fluid
meeting
Ford
Specifications.
3. Start the engine and allow it to
EJ
CLEANING
AND INSPECTION
Clean the parts with suitable sol-
vent and
use moisture-free air to dry
off
all
the parts and clean out oil
passages.
The
composition
clutch
plates,
bands and synthetic seals should
not
be cleaned in a vapor
degreaser or
with any type of
detergent
solution.
To clean these
parts,
wipe them off
with
a
lint-free
cloth. New
clutch
plates
or
bands
should
be
soaked in
transmission
oil for
fifteen
minutes
before
the
plates
or
bands
are
assembled.
run at normal
idle
speed for
3
min-
utes with the selector
lever
in p
(park) position
.
Stop
the
engine and
add additional transmission fluid re-
quired to complete total fill.
Start
the
engine and allow
it
to run
at
normal
idle
speed.
4. Allow approximately
two
quarts
of transmission fluid to drain
into
the
pan placed under
the end of
the
cool-
er return line.
5. If the fluid does not
run
clean
after
draining
two
quarts
of
it
through the cooler, shut off the en-
gine and add two additional quarts
of transmission fluid
.
6. Repeat steps 4 through 6 until
the transmission fluid flowing out of
the cooler return line
is
clean
.
7. If there
is
no fluid flow or the
fluid does not flow
freely,
shut off
the engine
and
disconnect both
cool-
er lines from the transmission
and
cooler.
8. Use
an
air hose with not more
than I 00 psi
air
pressure
to
reverse
flush the
cooler lines and the cooler
.
After reverse flushing,
connect
both
lines at the cooler
and the cooler in-
let line
(converter
out)
to the
trans-
mission
.
9. Start the engine
and check
the
fluid flow
.
If the transmission fluid
flows freely, proceed with
steps
4
through
7.
If there is no fluid flow
check for pinched cooler
lines.
If
the flow is restricted, replace
cooler
lines andjor the
radiator.
10. Shut off engine,
remove
the
temporary plug
from
the
cooler
re-
turn line fitting on the transmission
case
and connect the cooler
return
line to the transmission.
Check
the
transmission fluid level
as indicated
under heading Transmission
Fluid
Level Check
.
Add or remove trans-
mission fluid
as
required until the
proper fluid level
is obtained
on the
dipstick. DO NOT OVERFILL THE
TRANSMISSION
.
11. Do
n•Jt
attempt to correct
cooler or cooler line leaks by clos-
ing off the lines.
CLEANING
CONVERTER CLEANING
The converter
cannot
be disassem-
bled for
cleaning.
If there
is
reason
to believe that
the
converter has an
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