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4. TROUBLESHOOTING
Use the following directions to find the cause of
each type of breakdown.
Improperly adjustment
units should be completely readjusted.
« AUTO-RETURN DOES NOT WORK
Change
in starting
position
adjust-
ment.
Starting
plate
does
not follow
the
NO
Too
much
grease between the signal
signal plate.
plate and the cam
YES
YES
Inner
diameter
of the starting plate
hole is small.
Protrusions
on
the caulk
section
of
the starting plate hole.
Not
enough
grease
between
the
starting plate and signal plate.
After starting, incomplete reset of the
NO
The
curved
section
of
the
signal
signal plate. (See Section 1)
plate is deformed.
YES
Arm lead wire is caught on something.
PU
cord
is touching
the
PU
plate.
The
inner
areas
of records
can
not
be tracked.
Operator
of the
detection
lever
is
not smooth.
Looseness
in the PU
plate
attach-
ment.
Section 1
After
performing
the return
operation,
if the
curved
section of the signal plate and curved sect-
ion of the starting plate are not in contact with
surfaces A) and
respectively
of the cam, reset
will be
incomplete
and the starting position will
be late.
As a result, the return function may not
operate
at times.
In this case, bend the signal
plate ©)so that dimension
(A) is 0.5mm or larger.
Cam
Fig. 4-1
Incomplete reset of starting and signal plates.
Starting plate
:
At least 0.5mm
0
see ee IS i B
La ot a a
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