(4) Crank balancer positioning
[Rotating direction]
When the needle bar
lowers and the clearance between the needle bar connecting
and needle bar lower
bushing
is 4.6 mm, 2 set screws
of the crank balancer
becomes horizontal position.
[Axial direction]
Bring the main shaft eccentric cam
into contact with the crank balancer
.
– 11 –
Standard Adjustment
4.6mm
B
A