Service manual

FRONT AXLE
FRONT SUSPENSION
Race
and
roller
I
i
1
l
g
Cause
o
a
l
0
0
0
0
ro l
l
l
0
00
u
Seizure x x x In the most
cases seizure
occurs as
the
result
of
grown
discoloring
or
flaking
Scratch
6
6 6 Shock is
given
carelessly
during
installation
Bit
foreign
matter
Recess or wear
6 6
6
Careless
installation removal
or
other
handling
scar
due
to
made
by pressing
striking
or
striking
Recess made
by
bit
foreign
matter
Wear
6 6
6
Poor
lubricant
quality
or
deteriorated
lubricant
Intrusion of dust Fitted surface
is worn
remarkably
Wear due
to
excessive
preliminary
pressure
Biting
6 6 6
Excessive
preliminary pressure
or
faulty
lubrication
Fretting
6
6
6
The
fitted
part
is discolored to brown or black
Fretting
corrosion
rust on fitted
part
means fine
relative
slip
on metal
contact surface
Rust
6
6
6
Temperature
increased
during
operation
lowers when the
bearing
stops
moisture inside the
bearing
is
condensed
becoming
fine
drips
and the
grease
is moistened
The
bearing
has been
placed
in a
highly
moistened
place
for a
long period
of
time
Intrusion
of
moisture
chemicals etc
or
the
bearing
is
touched with
bare
hand
and
no
rustproof
action has been
taken
Discoloring
The wheel
bearing
is
Slight discoloring may
become like
oxidized
oil stain
due to
serviceable
if discolor
grease
ing
can be
removed
with solvent or
by
In the
most
cases
this
Occurs
when
preliminary pressure
is
too
polishing
high
l
FA 5