– 3 –
ENGLISH
a
b
1
2
1
15mm (9.8N)
4. Installing the belt
1) The belt dstance, between sewng machne pul-
ley and motor pulley, must be parallel.
2) The belt tenson should be adjusted by turnng
the tenson adjust nuts
1
to change heght of the
motor, so that the belt snks down by about 15
mm (9.8N) when t s depressed by band at the
center of the belt span.
If the belt tenson s not tght, speed s unstable
at low-speed or medum-speed operaton, and
the needle will not stop exactly in position.
5. adjusting the pulley cover
1) After adjustng the belt tenson, adjust the pulley
cover
1
so that the clearances between the belt
and the pulley cover
1
,
a
and
b
should be the
same.
2) After the completon of adjustment, tghten screws
2
located on the sde of pulley cover
1
and
securely fix the pulley cover
1
so that t does not
slp out of poston.
1
Belt
