Paragraphs 3A-4
ALLiS-CHALMERS
3A. Assemble retainer,
oil
seal, low-
er bearing, bevel pinion gear and
ver-
tical shaft
as a
unit
and
install
in
front support after installing steering
arm shaft
and
segment gear. Vary
the
number
of
shims
(9)
between retainer
and front support to provide .002 back-
lash between bevel pinion
and
bevel
segment gears. Alternate shims with
gaskets
to
prevent
oil
leaks. Pinion
gear
and top of
vertical shaft
are
punch marked
and
should
be
assem-
bled
as in Fig.
ACIO. Pinion gear
and
segment gear should
be
meshed
so
that steering arm
is in
position shown
in
Fig.
AC 11 when front wheel
is in
straight-ahead, trailing (castering)
position
and
main steering gear
is in
mid-position. Adjust vertical shaft
bearings
by
adding
or
removing shims
(4—Fig.
ACl)
between
top of
shaft
and bearing cone retaining washer.
Fork Mounted Wheel.
To
remove
front wheel and horizontal spindle,
re-
move
cap
screws
and
axle retainer.
It
will
be
noted that
the
cork seals
are
installed toward
the
outside,
and the
felt seal toward
the
inside.
3B.
C-CA
ADJUSTABLE FRONT
AXLE.
Except that vertical spindle
in
the front support terminates
in a
cen-
ter steering
arm
instead
of a
wheel
fork,
the
external parts
are the
same
as
on
the single wheel models outlined
in
the
preceding paragraph. Refer
to
Fig. AC2.
7
35
1
38
.\
I /
61
59 58
Fig, ACB-Models
kC, WC, WD &
WD45
dual wheel tricycle version front support,
and main steering gear assembly,
66.
Spindle block
66.
Horizontal spindl*
67.
Spindle pin
68.
Cap screw
69.
Washer
60.
Shims
61.
Set screw
1.
Cover
7.
Front support
13.
Oil seal
28.
Sector set screw
30.
Vertical spindle
82.
Oil seal
85.
Sector
88.
Sector key
54
2.
8.
4.
6.
9.
10.
18.
14.
22.
28.
24.
26.
26.
34.
86.
36.
60.
62.
64.
Cap screw
Washer
Shims
Bearing cone and
cup
Gasket
Bearing retainer
Oil seal
Bearing cone and
cup
Pivot bracket
Axle main mem-
ber
Spindle support
Bushings
Steering spindle
Snap ring
Sector
Vertical shaft
Center steering
arm
Thrust washers
Radius rod pivot
bracket
Fig, AC9-Models
RC, and WC
non-adjust-
able type axle version front support
and
main steering gear assembly.
1.
Cover
8. Washer
4.
Shims
6. Bearing cone &
cup
7.
Front support
10.
Bearing retainer
12.
Vertical shaft
13.
Oil seal
32.
Oil seal
34.
Snap ring
36.
Sector
38.
Sector key
43.
Worm
Fig. ACJ-Models
WD and
WD45 adjustable axle version main
steering gear,
and
axle assembly.
3C.
C-CA DUAL FRONT WHEELS.
To disassemble pedestal
and
front
steering gear, support tractor under
torque tube
and
remove front wheels.
Remove
cap
screws retaining pedestal
(29—Fig.
AC3) to
front support
(7)
and remove pedestal. Remove
cap
screw (2), washer
(3) and
shims from
top
of
vertical spindle shaft
(30) and
pull pinion gear
(8) off
shaft. With-
draw shaft, bearing cone
and oil
seal
(13) from bottom
of
housing. The need
and
the
procedure
for
further disas-
sembly will
be
determined
by an in-
spection
of the
parts
and by
reference
to
Fig. AC3.
Presized bushings
(17)
are supplied
for
steering
arm
shaft,
and
if
carefully installed require
no
sizing after installation. Removal
of
front support from tractor requires
removing radiator core
and
detaching
support from engine.
3D.
Assemble steering
arm
shaft
and segment gear before installing
pedestal assembly. Pinion gear
and
vertical spindle shaft
are
punch
marked and should
be
assembled
as in
Fig. ACIO. Vary number
of
shims (4—
Fig.
AC3)
between
top of
shaft
and
pinion gear retaining washer
to re-
move
all
bearing play
but
permitting
shaft
to
turn without binding. Install
pedestal unit
in
front support varying
the number
of
shims
(9) to
provide
.002 backlash between pinion and
seg-
ment gear. Pinion gear
and
segment
gear should be meshed
so
that steering
arm
is in
position shown
in
Fig. ACll
when front wheels
are in
straight-
ahead, trailing (castering) position and
main steering gear
is in
mid-position.
4.
RC
-
WC " WD
-
WD45
W O R
M-
SHAFT.
To
disassemble worm shaft,
bump
pin out of
steering shaft
uni-
versal joint
and
worm shaft
and
slide
universal joint back. Remove steering
shaft bearing bracket
(47) and
shims
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