Brother International LK3-B430 Service Manual - Page 28

Clutch, timing, adjustment, Start, lever, position

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--- 0 ® (2) Bring the mark of ball presser plate 0 to meet the center of the steel ball. loosen two bolts 0 and nut to such an extent hand, and that low speed pulley ® hardly slips adjust by turning adjusting screw S. when After the stop cam is locked and low speed pulley m this adjustment, run the machine at high speed, turned by and make sure that the high speed pulley will not slip. * If. after years of use, the pulley slips even after the above-mentioned adjustment, refer to the pulley disassembly instructions on Page 12, remove one washer, and make a re-adjustment. 4. Clutch cam timing adjustment 0- 22i 0 0 Loosen bolt and turn clutch cam so that stopper 0 contacts stop cam 90° before the machine stop position. *The timing advances as the clutch cam is turned in the rotating direction. 5. Start lever position adjustment 0-- -0 Loosen nut 0 and turn eccentric screw 0 so that roller shaft 0 disengages from start lever ® when stop cam 0 reaches 5 mm before the machine stop position. - 28 -

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---
0
(2)
Bring
the
mark
of
ball
presser
plate
0
to
meet
the
center
of
the
steel
ball.
loosen
two
bolts
0
and
nut
®
to
such
an
extent
that
low
speed
pulley
®
hardly
slips
when
the
stop
cam
is
locked
and
low
speed
pulley
m
turned
by
hand,
and
adjust
by
turning
adjusting
screw
S.
After
this
adjustment,
run
the
machine
at
high
speed,
and
make
sure
that
the
high
speed
pulley
will
not
slip.
*
If.
after
years
of
use,
the
pulley
slips
even
after
the
above
-mentioned
adjustment,
refer
to
the
pulley
disassembly
instructions
on
Page
12,
remove
one
washer,
and
make
a
re
-adjustment.
4.
Clutch
cam
timing
adjustment
0-
22i
Loosen
bolt
and
turn
clutch
cam
0
so
that
stopper
0
contacts
stop
cam
90°
before
the
machine
stop
position.
*
The
timing
advances
as
the
clutch
cam
is
turned
in
the
rotating
direction.
5.
Start
lever
position
adjustment
0--
-0
Loosen
nut
0
and
turn
eccentric
screw
0
so
that
roller
shaft
0
disengages
from
start
lever
®
when
stop
cam
0
reaches
5
mm
before
the
machine
stop
position.
—
28
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