JUKI AMS-221EN Series Engineer's Manual page 81

Adjustment Procedures
In regard to the fixing positions of the lifter brackets A
well as the table, refer to the five points specified below and assembly
them while adjusting their forward, backwards, right, and left positions.
1. The gas spring shall not be bent as seen from the direction of the
arrow A. → Adjustments in Direction Y (Check. 1)
2. There shall be no interference around Section B (gas spring rod
section and lifter bracket). → Adjustments in Direction Y (Check. 2)
3. There shall be no interference around Section C (gas spring and
stud ). → Adjustments in Direction X (Check. 3)
4. There shall be no interference around Section D (gas spring and
table). → Adjustments in Direction X (Check. 4)
5. When the sewing machine is raised in the maintenance position, the
gas spring shall stay free. (There is a clearance between the upper
end of the lifter bracket oblong hole and the shaft
and B as
o According to the mounting
.) (Check. 5)
– 77 –
Results of Improper Adjustment
position of the lifter bracket, the
gas spring may be dislodged due
to the effect of interference
between the gas spring and other
parts or the sidewise loading of
the gas spring.