JUKI PS-800-12080 Instruction Manual page 26

Mark both sides of the moving
knife with a black marker pen.
❸ ❸
Black markers on both sides of
the moving knife are rubbed by
the counter knife simultaneously.
2) Attaching the counter knife
❷ ❷
The tail portion of the counter knife has a hole.
Inserting 2.5 hexagonal wrench key ❷ into that
hole, tighten the fixation screw of the counter
knife while aligning the tail portion of the counter
knife with the hexagonal wrench key.
3) Mark the 5 mm position of the moving knife blade
with a black marker pen. Adjust the counter knife
pressure with counter knife pressure adjustment
screw ❸ .
After you have completed adjustment, push down
the moving knife to re-adjust the moving knife
pressure in repetition until both sides, with black
markers, of the moving knife are simultaneously
rubbed by the counter knife without fail. In addi-
tion, the friction force between the moving knife
and the counter knife can be minimized by trim-
ming three used machine-sewing threads.
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