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4-38
TRANSMISSION
CLUTCH, TRANSMISSION, UNIVERSAL JOINT
(166)
transmission case should be checked for exces-
sive run-out, as follows:
1.
In Series
40-50
transmission case, install
Adapter J 2240-4 in rear opening in case, then
install Mandrel J 2240 as shown in figure
4-53.
In Series 70, install transmission rear bearing
in case, then install Mandrel J 2240 as shown
in figure 4-54.
2. Mount dial indicator on the mandrel as
shown in figures 4-53 and 4-54 so that indi-
cator stem bears against front face of trans-
mission case 3" from center of mandrel.
3. Rotate mandrel while
pressing
it against
case and note dial indicator reading. Total in-
dicator reading should not exceed
.003".
If
run-
out exceeds .003", replace transmission case
with one that checks within the allowable limit
on run-out.
h. Transmission Mounting and
Thrust Pad
Inspect mounting and thrust pads. Replace
either part if rubber is broken or deteriorated.
TRAN SM
ISSIO
N
REAR
BE
A
RING
Figure 4-54-Checking lun-Out of
Tran.mlllion
Ca.e-
1948 5erie. 70
4-33
ASSEMBLY
OF
TRANSMISSION-
ALL
SERIES
To assemble the
transmission,
reverse the
sequence of steps given for disassembly in
paragraph 4-30 for Series 40-50, or 4-31 for
Series 70. In addition, observe the following
instructions that apply to
assembly.
a.
Conditi on
of Parts
Make certain tnat all
parts
are
absolutely
clean and that gears and synchr onizing drums
are free of nicks or
burrs.
Use all new gaskets
and oil seals or packings to insure against leak-
age of lubricants. Use all new snap
rings,
and
retainers of snap ring type. Snap rings are
frequently distorted during removal and are
difficult to true up satisfactorily for further
service.
.
b. Bearings
Observe instructions given under Bearing
Service (par. 1-11) on proper installation of
ball bearings. Coat bearings with clean trans-
mission lubricant at time of installation, to in-
sure initial lubrication.
. .
J
8
6 5
(S
ER.
40-50>
~
REPLACER
5
(SER.
70l
Figure 4-55-ln.talling Universal Joint with leplacer
c. Universal Joint and Torque Ball
When installing universal joint on main
shaft, use Replacer J 865 for Series 40-50 and
Replacer' J 855 for Series 70. See figure 4-55.
When installing torque ball, retainers, packing,
and oil seal follow instructions for installation
and adjustment given in paragraph 4-28.
d. Main Drive Gear Bearing
Install main drive gear bearing with the
shielded side toward gear
teeth.
e. Re ve rse Idler Gear Shaft Lock
Always use a new lock and coat with white
lead or other sealing compound before
installa-
tion, to prevent oil leaks. On S
eries
40-50,
drive
lock into hole in shaft until outer
end of
lock is
25/32"
below surface of boss on
case.
On Series
70,
drive
lock 1" below surface of boss on
case.
f. Counter Gear Bearings, Thrust Washer,
and Shaft
Use Bearing Loader J 1334 for Series 40-50
and Loader J 1001 for Series 70 when install-
ing spacer, washer, and bearings in counter
gear. See figure 4-56. Pack bearing rollers in
white
gasoline to hold them in place and make
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