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a)
adjustment
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clearanceof0,1
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the
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b)
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ance
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or
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maybemade
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fixtureA117683
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96).
the
clearance
pressure
be
1.5to2
unscrew
the
sleeve.
alsobemade
tractor
through
after
(E,
plate
mm
Fig,
clevis.
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the
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the
assembly
provided
QB}ofthe
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fixtureA117083
the
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91)
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90).
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56
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B
Clearance
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A
11'£fi63,
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on
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in.).
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Fig.
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'
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shafts.
for
clutch-gearbox
CLUTCH
Assemby
Between
Between
Between
Setween
Between
Clutch
wheel
powe:
and
its
disc.,...... .......
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€1exib!ejoim':
disengagement
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power
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SPECIFICATEONS,
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mm
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0,010to0,105
0,013To0,115
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0,613to0,064
0,930to0,145
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and
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0.0005to0.0045
-0.0809in-0.0028
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0.3386
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0,35
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0,30
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0.0079
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1
Dismantling
Remove
Pgrtstobe
The
The
The
the
The
The
the
gearbox
disassembled.
engine,
with
steering
two
foot-boards,
dutch
disengagement
strippingofgearbox
centrai
clutch
GEARBOX
-
Stripping
its
box.
shaft
from
of
components.
tractor
AND
as
EPECYCLKC
toilows:
Operations
from
axle.
Follow
main
if
the
rear
temps
cable
and
the
tie-rods.
componentsis’§aci§itaiedbyinstaiiingiton
and
the
throw-out
collar.
Remove
out
together
coupling.
REDUCTION
and
the
sequence
clutch
the
hydraufic
collar
removal.
tractorisprovided
pumptothe
the
the
two
.5UppOI"itothe
with
the
GEAR
cautions.
describedonpage53for
with
oil
lines
lift,
remove
rotary
stand
ARR
screws
engine
fastening
gearbox,
clutch
shaft
the
rfiihning
them.
2284
(Fig.
clutch
and
remove
and
the
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the
from
I
5
93).
throw-
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fie-xI'bie
The
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gearbox
rods.
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r
gear
Remove
remove
pins,
beginning
siide
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shifter
take
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with
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after
puliing
central
gear
control
{Section
shift
rod
C-C,
the
(2,
sleeve
fig.
lever;
Fig.
fastening
95);
with
108)
and
1
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Fig.
93.-Gearbox
58
casing
ARR
mounted
2204.
an
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Fi.Q4.-Removalofgearbox
Q
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casing
from
tractor.
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Fig.
95.-Upper
1.
Shifter
reduction
viewofgearbox
forks
for
gear
control
1st,
5th,
forks.
4th
gears
fork-3.
3rd
and
Shili
Sih
control
and
fork
gears.
gears
reverse-2.
controlling
and
Epicyclic
2nd
shifter
and
Fig.
(Arrows
96.-Disassembly
show
the
wooden
of
wedge
primary
and
lhe
shaft.
punch).
l
l
Primary
Reverse
shalt.
gear
Secondary
and
shaft.
-04-.
its
shaft.
Note.-When
disassembled,
the
fronf
end
Take
away
the
the
shafébyhammeringonrear
Prevenl
with
in
lf
A
Remove
wifh
Should
a
Remove
Remove
wall
slide
the
the
shaftbyplacingaw0oo’en
Fig.
98.
necessary
9613703.
the
ihe
gear.
fhe
shall‘
screwtothe
bush
ihe
lnner
thrust
out
the
hammeringllon
also
engage
fasrfening
primary
rear
bearing
pull
out
slop
and
removal
threaded
from
gear
epicycllc
disc;
secondary
its
front
reducllon
{he
secondary
lwo
gearsinordertounscrew
shaftisto
nut.
shaft
front
cover
and
end.
from
the
hearing
slide
offer
holeinthe
using
shafl
coming
out
some
the
unit
withabronze
off
wedgeasshown
also
using
the
shaft
dlfiiculty,
axle.
punchA928251.
and
fhe
end.
be
remove
together
punch
together
apply
gearbox
punch
»
I
Checking
Check
Neither
gearbox
gear
Checkifthe
and
free
from
The
sliding
have
their
The
splined
faces.
Slide
responding
the
stripped
and
eplcycllc
teeth
nor
teethofmating
signsofscoring
gear
hub
internal
corners
primary
shaft
without
shaft
the
gearsonthe
spline
out
components
reduction
chamfered
gears
splines
signs
surfaces
are
workingonthe
or
hammering.
shouldbefree
of
hammering.
shouldbeabsolutely
shaft
and
flanks.
of
the
gearbox
gear
components
shouldhedamaged.
whole
from
free
from
check
for
clearance
and
against
face
epicyclic
specificationsofpage
length,
reduction
andifthe
marks0%wearorseizing,
pittingorscoring.
between
especiallyongear
the
gear
and
guide
gear.
63.
surfaces
ali
splines
flanks
are
sliding
and
smooth
should
sur-
the
cor-
59
Fig.
9'1.-Gearbox
1.
Clutch~ge-arbox
bearing-4.
speed
on
its
shat?
6th
speed
13.
Secondary
lion
gears
gear
Note:
sededbystraight
The
1st
gears~6.
shaft-B.
front
bearing-19.
and
fixed
gear-16.
-18.
Shim
shims-21.
Starting
reverse
reverse
she'll
from
shaft
tittedonthe
The
bail
bearings
driven
exceeding
in
The
surfaces.
Replace
The
replaced.
At
gears
the
any
way.
gear
control
They
gaskets
epicyclicai
gearbox
ordertocheck
which
are
subjecttowear.
F
.&f:A§;?¢‘I.“
and
coupling-2.
speed
and
Primary
Secondary
4th
shaft
1st
shaft
driven
rear
bearing-14.
Thrust
-19.
ring
outer
Reduction
for
rings
Stop
chassis
teeth.
shouldbesmooth
gear
and
its
should
roller
bearings
value
listedatpage63and
forks
shouldbechecked
should
whenever
reduction
major
overhaul,
its
components
‘I
epicyciic
Cover
speed
rear
bearing
and
4th
gear-12.
plate-17.
pivots-22.
No.
#27935
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%
reduction
gasket-3.
gear~S.
bearing-7.
retainer
speed
driven
2nd
and
Thrust
Epicyciic
gear
engagement
helical
2nd and
ring
Driven
and
shaftisin
be
and
slide
freely
excessofthe
perfectly
those
with
wornordamaged.
gear
thrust
remove
rings
the
efficiency,
lb’?
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1
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mm
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we
‘B
gear
parts.
Primafy
Reverse
ring-Q.
5th
speed
-15.
teeth
without
smoothinoperation,
for
shifter
control
shaft
3rd
and
mounted
Secondary
Srd
driven
gear
reduc-
driven
20.
Driver.
axle
rollers.
been
super-
from
5th
and
5th,
gear
gear-1?.
Epicyclic
reduction
sleeve-
gear
have
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shaft»V=Shim
Shim_R=Reverse
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reduchon
components
gear
reassembly.
proceedasroiiowsz
Operations
and
cautions.
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97.
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Assemble
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{6}
and
(14),
having
Fig.
99.
Mount
and
the
slide-in
onitthe
mount
and
When
A
the
their
mounting
137003
damaged
(Fig.
102).
Fig.
102.-Mounting
gearbox
fastenbyits
its
on
shaff
efasiic
the
shafi
first,
primary
gaskeis.
which
by
the
101.
the
pin
lubrication
front
end
rings;
from
second
and
the
first
avoids
primary
ihe
too?A137803.
reduction
primary
(V),
passages
the
the
case
and
third
secondary
cover,
the
oil
shaft
primary
gear
shafi
the
inner
bearing,
front
speed
shafts
slideifon
sea!
splines
shaft
front
c0m,00fl8niS
rear
bearing
thrust
disc
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the
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baffle
side
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fit
gears;
front
Covers
fixture
gasket
being
Confacf
cover
using
.2
.
W
1
1
1
1:
1
1
Rods
and
forks
Fig.
‘I63.-Orientafionofthe
referenceiodirection
Gearbox
cover
62
for
é_
with
the
gear
of
control
{_X F
various
force
lever
contra!
spring
(F)orof
(Fig.
(Fig.
pin
rotation.
93}.
cuts
95).
with
Introduce
detenf
gear
introduce
epfcyciic
diagram
infroducing
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second
rods
pinsintheir
Mount
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through
springs
shifter
and
rod
through
with
reduction
C-C,
Fig.
{he
two
ihe
rod,
ine
and
the
third
Note.-The
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the
add
the
holes
lever
cap
cutsofthe
and
the
the
gear
106)
balls
(Fig.
and
gearbox
mount
its
spacer
waif
control
and
from
spacer
gears.
183).
the
snap
wall
the
ball
and
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compleie
the
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and
fork
p:'ns
fastening
the
two
dowelsinthe
ring;
holes
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fork;
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check
the
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three
the
first
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(see
assembfy
hole
forks
expand
cover
two
by
and
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also
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Before
mounting
co-/er
the
selector
ihe
lower
two
pivot
cover,
section
screws
the
(2,
(3).
shiftinneufrai
sector
Fig.
93);
pia-fie
mount
all
gears.
and
Gearbox-ctufich
NOTE:
‘
Shift
the
the
operationoffastening
GEARBOX
SPEGFICATIONS,
control
gear
shaft.
shift
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backwards,
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EPKCYCUCAL
ASSEMBLY
thus
gearboxtothe
REDUUHON
CLEARANCES
mm
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_
3
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disengaging
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Assembly
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and
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and
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driven
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gears
gearbox
gear
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their
toath
the
all
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ringis1'nsz‘afied
reduction
casing.
COMPONENTS:
PERMESIBLE
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driving
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contra!
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and
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primary
(Fig,
gear,inordertofaciiitate
WEAR
,
T
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97),
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springs
.
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lb)
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63
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The
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There/:0.
The
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halfofthe
cover
upper
opening
BiFFERENT!AL
tractor
through
bodyisa
which
allows
the
case
the
power
fitting
housing
take-off
and
removalofthe
AND
the
differential
shaft
projects;
power
LGCK
assembly
the
belt
take-ofi
and
pulley
drive
its
lock;itis
unit
maybeattached
and
driven
closed
gears.
-k
5'!-N-',a1'.'*=‘=-"""“""“""“"'
Fig.
104.-Removalofengine
Disassembly.
To
remove
Paristobe
‘
transmission
the
differential
removed.
and
casing.
case
_
gearbox
from
tractor
from
rear
and
to
dismantle
Operations
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Remove
tighten
overhaul
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c)
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the
which
We
»-
—
—-
and
which
the
one of
thicknessofthe
Rc
smaller
will
suggest
mount
mountonthe
rotate
the
value,
the
the
quadrant
indicatedonthe
theoretical
the
number
ring
Rb.
The
ringtobe
between
On
the
addingorsubtracting
be
decreased.
the
sun":ofthe
mountinplaceofthe
will
seta50
bevel
the
pinion
pinions
and
with
bevel
on
the
two
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tooth
base
be
the
tool
most
bevel
bearing
and
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tittoavoid
following
pinion
casing
shalt
graduated
(Fig.
sequence:
shaft
the
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from92to94mm
quadrant,
distance
existing
marlzedonthe
mounted
the
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should
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gear
width
foregoing
ltgimm
mount
its
roller
and
111)
(ill)
lb}
the
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screw
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pay
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thisisC§Ul’E8*
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toolA133110,
titted
during
with
exceeds
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pinion
the
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shims
others
pre-loadonthe
gear
complete
and
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shim
withateeter
rings.
necessarytodetermine
operation.
all
its
parts
and
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the
eccentric
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£3.62?’to3.700”)
the
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pinion
smaller
increasedofan
results
from93mm
width.
having
pinion
with
Finally,
their
bearings.
differential
gauge,atthe
Divideitby
but
without
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and
contacts
the
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and
the
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less
than
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(3.6614”),
total
thickness
two
end"piay.
that
Rboiany
113;
the
pinion
bevel
amount
one
check
the
shalt
minus
pinions
placing
number
other
each
and
support,
ct’
stamped
thicknessotring
thickness;
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and
rotation
gear
axis
(93mm-
stops.itthis
equaltothe
readonthe
the
thicknessRbshould
pinion
tor
tree
6,05
mm
supports;
the
the
two
upon
Rh,
read
on
from
the
3.661”)
difference
after
Example
68
No.
7.
Readingonthe
Measure
Distance
The
installed,
0,2
93.2
readonthe
between
93+0.2=93. 2
ringRbshouldbe0,2
calculatedbysubtracting
mminordertoset
mm
accordingtothe
fool
pinion
quadrant
pinion
and
mm
($6614
mm
the
indication
bevel
gear:
-i—
0.0978=3.5692”)
thicker
pinionata
93.-1
mm
~{~
0.2
mm
than
the
one
93.4-93.2=
distance
markedonii.
of
Exampfe
d)
Check
No.
2.
withadial
gauge
canbeobtainedbyshifting
bevel
gear
fartherornearer
paragraphb}should
the
tooth
backlash
adjusting
the
pinionasrequired.
notbeaitered.
Readingonthe
Measure
Distance
The
insta/fed,
==
which
shouidbe0,20
shimsRcfrom
The
tool
readonthe
befween
pinion
ringRbshouldbe0,1
caicu/aied
0,1
mm.
mm
(U.O08”J;
one
supporttothe
overhaul
thickness,
quadrant
pinion
and
bevel
gear:
93—~0,3=92,?
mm
thinner
by
subtracting
the
92,7-—92,6
correct
other,inordertaset
determined
according
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backlash
92.6
the
mm
mm
mm.
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SPECIHCATIONS,
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FINAL
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Each
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Final
drive
The
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Removal
Shipping
f
pairOgems
110).
overhaul.
overhaul
from
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tracter
thereof
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ha
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VI
Q
shouldbemadeas.0
114).
casings,
‘ii
ows:
mounied
Remove
lighting
the
from
away;
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the
transmission
remove
Remove
null
bevel
Mount
with
fasfening
Remove
remove
the
the
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gear.
fire
assembiyonthe
support
nut.‘
the
boih
gears;
remove
and
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electricai
connection,
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assembiy,
final
drive
out
ARR
2221,
drum
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drive
axie
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the
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take
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{see
driven
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tractor
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axle
ARR
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Fig.
and
from
2284
drum
115};
driven
116)
v
1
1
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Note.-The
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mount
ihen
require
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Fig.
114.-Removal
YO
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Fig.
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gear
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heck
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2
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Brake
To
Removal
overhaul.
be
performedasfollows:
from
inspection.
tractor-
To
—
remove
drain
the
brake
transmission
iracior
instructions,’
-
remove
unscrew
springs,
outer
-—
remove
confrol
Checlr
arm
the
the
the
remove
the
arm
brake
iurnitdown,
would
impair
check
the
dlfierential
correct
replace
for
in
wear
any
leakages
bandsifsoaked
riveting;
addition
(Fig.
check
113aand
bands:
the
final
differential
screws
the
and
slideitout;
braking
(Z,
Fig.
pulley
avoiding
its
resistance;
smearing
the
b).
casing
drives,
oil
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Fr'g.119)
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band
end
118)
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surface
faking
axle
seals
the
with
oil
shall
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and
lower
remove
rod
pins
lake
remove
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from
covers
the
the
them
w...
from
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inner
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deep
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for
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119)
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Fig.
118);
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then
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nuts
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rods
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adjustment,
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respectlothe
control
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the
lever
Fig.
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119)
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STEERING
Removal
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and
disassembly.
AND
LINKAGE
l
The
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l
steering
Parts£0be
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The
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The
E
x
dashboard.
Steering
The
steeringbox.
arm
box
removal
removed.
from
drag
link.
and
disassembly
shouldbemadeasfollows:
Operations
Removeifwiih
the
gearbox;
detach
tion.
5/acken
gearbox;
remove
remove
battery
and
ifs
the
rear
/ighfing
the4screws
screws
the
box
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Assembling.
Fig.
1&3.~Front
axle
section.
Check
ensure
tration
the
check
the
wheel
nub
protection
from
against
outside
wheelasurface
the
disc
and
concerns
C
heck
squareinthe
and
rim,
constant;
check
central
Assemble
shouldbeexperienced.
steering
passages
End
steering
front
both
steering
the
camberofthe
vertical
checkingiffor
the
difierence
front
tires
for
steering
Note.-The
knuckle
the
assemblybygreasing
ribs
axle
accordingtoFig.
lower
shallheinstalled
facing
the
knuckles,
wheel
hub
with
_
the
cover
slush
into
the
gauge
rim
for
wheels.
steering
plane
any
two
between
wear
and
are
too
bronze
steel
upper
front
chassis
rubber
seals
and
moisture
bearing;
and
rotate
the
deformation:
wheelsbylaying
along
the
opposite
pointsonthe
measured
replace
worn.
126;nodifilculty
thrust
bearingofthe
with
its
thrust
the
hinge
wheel
hub
grease.
which
must
infil-
set
near
to
wheel
to
this
check
a
wheel
axis,
distances
is
themiftheir
lubrication
bearing.
pivot,
the
cover
and
the
I
i
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l
E
78