Installing The Belt; Adjusting The Pulley Cover - JUKI SC-922 Instruction Manual

3. Installing the belt
15mm(9.8N)
4. Adjusting the pulley cover
Belt
0
a.IUICI
1) The belt drstance, between sewing machme
pul-
ley and motor pulley, must be parallel.
2)
The belt tension should be adJusted by turrung
the tension adJUSt nuts
0
to change height of the
motor, so that the belt sinks down by about 15
mm (9.8N) when rt
IS
depressed by band at the
center of the belt span.
If the belt tension rs not trght, speed is unstable
at low-speed or medrum-speed operatron,
ana
the needle wall not stop exactly an posrtion.
1) After adjustrng the be1t tension, adjust the pu
cover
0
so that the clearances between the
~
and the pulley cover
0 .
E)
and
0
should be 1he
same.
2) After the completion of adJustment, trghte
screws
f)
located on the srde of pulley
cow
0
and securely fax the pulley cover
0
so that
does not shp out of position.