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~eMlal
SERVICE AND REPAIR
I~
•
Release track
tension
by loosening the right-
and left-hand adjusting nuts (6, figure 14) and the
adjusting bolts (5).
•
Release the support arm torsion
springs
con-
nected to
the
main frame.
•
Remove the right- and left-hand adjusting
angle
locknuts (6),
washers and carriage bolts
securing
the traction belt take-up assembly to the main
frame.
•
Remove the traction belt take-up assembly
as
a
unit.
NOTE: The
traction belt
take-up assembly consists
of
the
rear sprocket assembly,
spacer
and asso-
ciated hardware held together by the rear
support
arm assemblies.
If
necessary to remove
seals
or
sprockets, proceed as follows.
• Carefully pry
the oil
seal away
from the rear
support arm assembly (8) and remove the
support
arm and adjusting angle (9) clear of the
sprocket
shaft
and bearing.
•
Remove the press-on bearings and grease
seals.
•
Remove the screws (10) and nuts
securing
the
sprocket plate and the sprocket to the drive
shaft.
Remove the plate and
sprocket.
•
Reassembly is the
reverse
of removal. During
reassembly
follow instructions outlined in
para-
graphs Track Alignment and
Track
Tension Adjust-
ment.
To
Remove Sprocket
Seals
and
Bearings
•
Sprocket seals and bearings are located on
each
end of
the
traction belt take-up assembly and the
drive sprocket assembly drive
shafts. To
replace
the seals or bearings it will be necessary to remove
the traction
belt
take-up
assembly or the drive
sprocket assembly as described in the applicable
paragraph.
To
Remove Drive Sprocket Assembly
•
Remove
the
hood assembly and set the machine
on
its right-hand side.
cr=B
Always disconnect spark plug wires
before
working
on the engine or drive
elements.
14
•
Release the chain cover straps and remove the
chain cover top.
•
Remove the lower sprocket from the drive
sprocket
shaft and remove the sprocket and chain
as described in paragraph To Remove Drive
Chain.
•
Using a screw driver, carefully pry the oil
seals
(figure
15) away
from
the bearings at each
end
of
the drive shaft.
Figure
15
• Remove the carriage bolts and nuts
securing
the
bearing retainer to the chaincase side of the main
frame and remove retainer and chaincase.
•
Move the drive
shaft
and sprocket assembly
toward the chain side until the opposite end of the
shaft clears the
bearing
retainer. Remove the drive
sprocket assembly.
NOTE: When replacing
the drive
sprocket assem-
bly,
add No. 2 Lithium
bearin-
g grease to
the
sprocket
bearings.
•
To replace
the
sprockets, remove the
ball
bearing and oil seal. Remove the screws and nuts
securing the support plate and
sprocket
to
the
dri ve
shaft and sprocket
plate
assembly.
Remove the
sprocket.
•
Reassembly
is
the reverse of removal. During
reassembly
follow
instructions outlined in the para-
graps Track Tension Adjustment, Track Align-
ment,
and Drive Chain Adjustment.
To
Remove Traction Belt
•
Remove
the bogie
assemblies.
Refer
to para-
)
)
)
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