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Kawasaki KZ1300-A1 Quick Reference Manual Page 216

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MAINTENANCE--CHASSIS
Set
the dial
gauge
against the
outer
circumference
of the rim
,
and
rotate the wheel to measure radial
runout.
The
difference between the highest and
lowest
dial
readings
is
the amount of
runout.
If
rim runout
exceeds the
service limit,
check
the
wheel
bearings
first.
Replace them if they are damaged.
I
f the
problem is
not
due
to
the
bearings,
the
wheel
must
be
replaced.
Do not
attempt to
repair
a
damaged
wheel.
Table J4
Rim Runout (with tire removed)
Axial
Service Lim it
0.5
mm
Rim damage
Carefully inspect the
wheel for
small
cracks.
dents
,
bends,
or warps.
If
there is any
damage
to the wheel,
it must
be
replaced.
I
WARNING
I
Never atte.mpt to repair a dam~ged wheel.
~.
_ _ _ _ •• If
there IS any damage besIdes wheel
bearings, the wheel must be replaced to insure safe
operational condition.
If the rim has
a scratch
deeper
than
0.5
mm
and/or
across the
rim
sealing
surface,
replace
the
wheel.
Air Valve
For tubeless tires,
the air valve is installed
directly
on
the
rim.
The
airtightness between
the
rim and
the
valve
stem
is ensured with
a rubber grommet.
Air Valve
1. Locknut
4. Cast Wheel
2.
Nut
5.
Grommet
3. Washer
6. Valve Stem
Axle
A
bent
axle causes vibration,
poor handling,
and
instability
.
To measure
axle runout, remove
the
axle,
place it
in V blocks that
are
100 mm
apart, and set a
dial gauge
against
the
axle at a
point halfway between the
blocks.
Turn the
axle
to measure the runout. The amount of
runout
is the amount
of dial
variation.
If runout exceeds the
service limit,
straighten
the
axle
or replace
it.
If the axle cannot be straightened
to
within tolerance
,
or if runout exceeds the repair
limit,
replace
the
axle.
Axle Runout Measurement
100mm
Table
J5
Axle Runout!100 mm
Service Limit
Repair Limit
0.2
mm
0.7 mm
Wheel Bearings, Grease Seals
Since the grease seal not only seals in the wheel
bearing grease but also keeps dirt and moisture from
entering the hub,
the
use of a damaged grease seal
will
cause
the
wheel bearing to wear
quickly.
A wheel bearing is fitted in both sides of each
hub.
Since
worn
wheel bearings will cause play
in
the wheel
(resulting in vibration and
instability), they should be
cleaned, inspected, and
greased periodically (Pg.
10).
Inspection and lubrication
If the grease
seals
are examined without
removing
the seals themselves, look for discoloration (indicating
the rubber
has deteriorated), hardening, damage to the
internal
ribbing,
or
other
damage. If
the seal
or
internal
ribbing
has hardened, the clearance between
the
seal and
the axle
sleeve
will not be taken up
,
which will allow dirt
and
moisture
to
enter
and reach the
bearing.
If
in
doubt
as to its condition
and
whenver
the seal is
removed for
greasing the
bearing,
the seal
should
be replaced
.
The
seals
are generally damaged upon
removal.
Grease Seal
1.
Primary Lip
3. Metal Band
2. Secondary Lip
4. Wire Spring Band
Since the wheel bearings are made to extremely
close
tolerances,
the clearance cannot normally be measured
.
216

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