JUKI MOL-254 Engineer's Manual page 125

Adjustment Procedures
1. Loosen screws in the folding shaft metal bracket and
move the folding shaft metal bracket to the right or left to
adjust so that the paralleism of the fork ends of the two
folding shafts is set to the specified value.
2. Adjust the position of the fork for the second needle on far
side by increasing or decreasing the number of plain
washers placed between folding shaft metal
supply slide base .
3. First, remove E-ring
4. Loosen screw in the folding shaft metal, draw out supply
cam lever shaft to this side, and increase or decrease
the number of plain washers
increasing the number are placed in the accessory box.)
5. Adjustment in a unit of 0.5 mm can be performed since
the thickness of the plain washer is 0.5 mm.
6. The whole amount of adjustment can be performed up to
±2 mm from the state at the time of delivery.
7. After inserting the plain washers required, put supply cam
lever shaft and fit E-ring
8. Press folding shaft metal
base and fix it while removing the thrust play.
9. Loosen screw in the folding shaft metal, adjust the fork
on this side to the first needle, and fix it.
fixing supply cam lever shaft
. (Plain washers when
.
on far side to loop supply slide
118
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Results of Improper Adjustment
○ Slippage of the position of upper
and lower bartackings may
occur.
○ The dimension, 4 mm, outside
the bartacking at belt loop folding
and loop
portion cannot be secured.
○ If 4 mm is not secured, the
. presser cannot securely press
the belt loop. As a result, flopping
of belt loop, thread breakage or
stitch skipping will result.
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