ALLIS-CHALMERS
Paragraphs 28-65
77
78
76.
Housing
77.
Worm & shaft
78.
Shims & gaskets
80.
Housing cover
81.
Tube clamp
82.
Jacket tube
83.
Bushing
86.
Trunnion shaft
sr*. Adjusting screw
8!>. Hush ings
90.
Steering arm
96.
Oil seal
98.
Thrust ball
99.
Side cover
107.
Drive nut
Fig. AC2I—tavine sfeering gear assembly as used on early production model
WF
tractor.
duced. Steering arm should be posi-
tioned on trunnion shaft so that steer-
ing gear is in mid-position when
wheels are straight ahead.
28.
OVERHAUL. Gear unit should
be removed from tractor. Procedure
for disassembly is readily evident from
an examination of Fig. AC21.
NON-DIESEL
ENGINE AND COMPONENTS
R&R ENGINE WITH CLUTCH
Models
B-C-CA
60.
Remove hood and disconnect
fuel lines. Support tractor under
torque tube. Disconnect steering drag
link (also radius rod retaining nut if
used),
upper and lower radiator hoses,
and light wires. With front axle and
radiator and grille unit supported, re-
move four nuts which retain front
support to engine. Move the front sup-
port radiator and pedestal or axle as
a unit, away from the engine. Discon-
nect governor control, wires at coil,
and generator, choke rod, and fuel
line.
With weight of engine supported
by hoist, remove the four bolts retain-
ing engine to torque tube and remove
engine unit.
Model G
62.
To remove engine from the trac-
tor, drain cooling system and oil sump.
Shut off fuel supply at tank connec-
tion. Remove hood, hood support
(sheet metal cover from timing gear
cover end of engine) and upper and
lower radiator hose. Remove the
drawbar guide. Disconnect starter
control rod, choke rod, headlight wire,
and battery cable at starter. Discon-
nect fuel line and remove throttle rod.
The engine may be supported from
the extreme ends of the fan shaft
bearing supports, or by using a proper
lift hook threaded into the number
three spark plug hole (cylinders are
numbered from timing gear end). Re-
move starting motor and bolts retain-
ing engine to clutch housing. Engine
may now be removed by pulling same
forward to release clutch shaft from
clutch plate.
Model RC
63.
Remove hood and disconnect
fuel lines, electrical connections, and
controls. Remove radiator and crank
pin located just behind front support
and pull crank forward. Support en-
gine in hoist and remove engine front
support, flywheel cover and cap
screws retaining engine to clutch
housing.
Models WC-WD-WF-WD45
64.
Remove hood and radiator. Dis-
connect fuel line, air cleaner hose and
generator wire. Disconnect choke rod
and throttle rod. Support engine with
a hoist. Attach the lift bracket to two
of the rocker shaft support studs. Re-
move universal joint retaining pin
from steering worm shaft and slide
steering shaft and universal joint rear-
ward.
Remove two cap screws and two
bolts retaining front engine support
to frame rails and timing gear cover.
Remove dust shield from front lower
face of clutch housing. Remove cap
screws retaining engine to clutch
housing. Remove starting crank sup-
port and pull starting crank forward
against ^ring i5ressure. Slide engine
forward until free of clutch housing
dowel pins. Raise front of engine
until crankshaft pulley clears the axle
front support and at the same time
slide the engine forward until the
clutch clears the clutch housing. Raise
engine clear of frame rails and at the
same time tip it^ toward left side of
tractor so as to clear steering shaft.
Shims located between engine front
support and lower side of timing gear
cover should be varied to obtain pro-
per engine alignment. The check for
correct engine-to-clutch horizontal
alignment should be made after the
engine is bolted to the clutch housing
and before the front support to timing
gear cover cap screws are reinstalled.
R&R ENGINE AND CLUTCH
HOUSING AS A UNIT
Model G
65.
Clutch housing and engine can
be removed as a unit by following
the engine removal procedure to the
point of removing the engine to clutch
housing retaining bolts. At this time
disconnect clutch pedal rod from
throwout bearing fork and unhook
the brake return springs at the bot-
tom of the radiator support. Use the
same lift arrangement as for engine
removal, except the balance point will
be about 4 inches closer to flywheel
end of engine. Remove clutch hous-
ing to transmission case retaining
13
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