Installation And Adjustment For The Protecting Pin And The Belt Slip-Off Preventing Bracket - JUKI SC-922 Instruction Manual
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Also See for SC-922:
- Instruction manual (58 pages) ,
- Engineer's manual (82 pages) ,
- Supplementary instructions manual (160 pages)
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5. Installation and adjustment
for
the
protecting
pin
and
the belt slip-off preventing
bracket
WARNING:
To
protect against
possible personal
injury
due to
abrupt start of the
machine, be sure to
start
the
following work
after
turning the
power off
and
ascertaining
that
the
motor
is
at rest.
Belt
_
Belt
/
4 mm oriess
4 mm or less
Adjusting position
for
protecting
pin
Pulley
Motor
pulley
Adjusting position tor belt slip-off preventing bracket
1 } Attaching hole for the protecting pin
To attach protecting pin
0
.
select either attaching
hole
0
or attaching hole
€)
in the motor pulley
cover 1n accordance with
the
direction of rotation
of the sewing machine and attach the ptn in the
selected hole using screw
8
and washer
f)
sup-
plied with the unit.
a)
If
the motor shaft rotates
in
directton A tn the
figure on the above:
• Attach protecting pin
0
in attaching hole
0
.
b)
If
the motor shaft rotates in direction
B
in the
figure on the above:
-
· Attach protecting pin
0
in
attaching hole
€)
.
2} Adjustment for the protecting pin and the belt
slip-off preventing bracket
Adjust the posttiOn of protecttng pin
0
and
belt
slip-off preventing bracket
0
In accordance
with
the
figure
on the left.
a) Adjusting the protecting ptn
Loosen screw
f)
and adjust so that protecting
pin
0
is positioned at the location indicated
in the
figure
on
the
left.
b) Adjusting belt slip-off
preventing
bracket
Loosen screw
0
and adjust so that belt slip-
off preventing bracket
0
is
positioned at the
location indicated in the figure on the left.
If
protecting pin
0
is not properly adjusted,
it is possible that your
fingers
may be caught
tn
the clearance provided between the pulley
and
the
belt resulting in
injury.
If belt slip-off
preventing bracket
0
is not properly ad-
justed, it is possible to allow the belt to slip off
causing safety hazard.
3) After the adjustment, lighten screws
f)
and
0
so as to secure protecting ptn
0
and belt slip-off
preventing bracket
0
to prevent these
compo-
nents to
fluctuate
because of vibration.
4} Before starting the operation of the sewing ma-
chine, ascertain that protecting pin
0
and belt
slip-off preventing bracket
0
do not
come in
con-
tact with the pulley and the belt.
-3-
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