ALLIS-CHALMERS
(46) from rear
of
front support
and
withdraw worm shaft
and
gear
as-
sembly. Shims
(46) can be
varied
in
number
to
adjust
the
wormshaft bear-
ings.
4A. RC-WC-WD-WD45 VERTICAL
SPINDLE.
On
single wheel models,
the vertical spindle
is
supported
in
two roller bearings;
on one
such bear-
ing
in the
dual wheel models. Refer
to Figs.
AC4,
ACS, AC7,
and AC8.
To
R
&
R or
renew
the
vertical spin-
dle (30—Fig.
AC8)
and/or spindle
ta-
per roller bearing,
it
will
be
necessary
to first support front
end of
tractor
under frame rails
and
clutch housing.
Remove
pin
from starting crank
and
withdraw crank from front support.
On dual wheel type, remove cover
(1)
Pinion Gear
Timing Marks
Fig.
ACIO—Correct position
of
pinion gear
on vertical shaft
is
indicated
by
punch
marks.
Fig, ACll-Models
C and CA
dual,
and
single wheel tricycle versions. Pinion gear
and segment gear should
be
meshed
so
that steering
arm is in
position
as
shown
when front wheel
or
wheels
are in
straight-ahead, trailing (negative
caster^
ing) position,
and
main steering gear
is
in mid-position.
from front support
and set
screw
(28)
from sector
(35).
Using
a
suitable
puller, remove sector
and key.
With-
draw vertical spindle
and
horizontal
(axle) spindle unit from bottom
of
support. Vertical spindle taper roller
bearing cone and/or cup,
and oil
seals
(13
or 32), can be
renewed
at
this
time.
On single wheel models. Figs.
AC4
& AC5, first remove retainer plate (3—
Figs,
AC4 & ACS)
and
shims
(4)
from
top
of
vertical shaft. Remove stud nuts
which hold retainer
(10) to
bottom
of
front support. Remove vertical spindle,
bearings, sector
and
bearing retainer
as
an
assembly from front support.
4B.
When reassembling, adjust
ver-
tical spindle bearings
of
dual wheel
models
by
varying number
of
shims
(4—Fig. AC3).
On
single (fork mount-
ed) wheel types, adjust bearings
by
varying
the
number
of
shims (4—Figs.
AC4
&
ACS).
4C.
RC-WC-WD-WD45 WHEEL
AXLE.
On
dual wheel type,
the
hori-
zontal spindles (S6—Fig. AC8)
are in-
dividually available
for
service. Indi-
vidual spindles
can be
removed from
the spindle block after removing
the
front wheels, retaining
pin (S7) and
adapting
a
combination puller.
Horizontal (axle) spindles
and
block
(S5)
can be
removed
as an
assembly
after first removing
the
wheels,
cap
screw
(58),
washer
(59),
shims
(60)
and spindle block retaining
set
screw
(61).
On single wheel type
the
spindle
bearings
are
adjusted
by
varying
the
number
of
shims located between bear-
ing retainer
and
wheel hub. Shims
are
shown
at
(40—^Fig.
AC4).
Paragraphs 4A-7A
FRONT AXLE MEMBER
All Models
5.
Adjustable, Figs.
AC2, 7, and
13,
or
non-adjustable. Figs.
AC14 &
AC 15 type front axles
are
either
of-
fered
or are
available
on all
models.
On
all
such models,
the
axle main
member complete with wheel spindles
or knuckles
and
wheels
can be re-
moved from
the
tractor
as a
single
unit. Exact procedure varies with
the
various models,
but is
self-evident
af-
ter observing
the
actual tractor.
On
B,
C, CA, G, WD and
WD45,
the ra-
dius
rod is
integral
(by
being welded
thereto) with
the
axle main member.
SPINDLE (KNUCKLE) BUSHINGS
6. Steering spindle bushings
and
axle
pivot bushings should
be
renewed
if
the diametral clearance exceeds
.020.
Steering spindle bushings usually
re-
quire final sizing
to
provide .002-.005
clearance between spindle
and
bush-
ing.
To
remove
all
wear
in
systems
employing
the
Lemoine type spindles
as
in
(26—Figs.
AC2, 7, and 13), it
may
be
necessary
to
also install
new
spindles. Recommended front wheel
toe-in
of
0-1/16 inch
is
adjusted
by
varying
the
length
of tie
rods.
RADIUS
ROD
7.
MODELS B-C-CA. Rear
end of
radius
rod is
pivoted
in a
removable
bushing (27—Fig.
AC2) in the
front
end
of the
torque tube (clutch hous-
ing).
Bushing renewal required
re-
moval
of
front axle
and
integral radius,
rod.
7A. MODELS RC-WC.
To
remove
radius
rod,
detach front
end
from axle
and slide rear
end off
rear
end of
extended axle pivot
pin.
51
23.
Radius rod (welded to asde
member)
24.
Spindle support
25.
Bushings
26.
Steering spindle
33.
Steering arm
60.
Center steering arm
61.
Pivot, radius rod
63.
Bushing, axle pivot
66.
Dust shield
67.
Tie rod & socket
68.
Pivot pin
Fig.
AC 13—Model
G
adjustable axle
has
Lemoine type
knuckles, Pndius
rod is
welded
to
axle main member.
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