JUKI AMS-221EN Series Engineer's Manual page 84

(50) Adjustment of tilt mechanism of machine head
4. Replacement of the gas spring
When the sewing machine is lifted, the force of more than 20kg may be required in the tip of the head grip
In such a case, there is possibility of gas leakage at the gas spring
procedures specified below.
Standard Adjustment
A
Widen the
clearance
by 0.2mm.
– 80 –
. Replace the gas spring
.
in the