Replacement Procedure Of The Moving Knife And The Counter Knife; Adjustment Procedure Of The Cloth Guide - JUKI MF-7900 Series Engineer's Manual

(6) Replacement procedure of the moving knife and the counter knife

WARNING :
To protect against possible personal injury due to abrupt start of the machine, be sure to start the
following work after turning the power off and ascertaining that the motor is at rest.
❶
A

(7) Adjustment procedure of the cloth guide

WARNING :
To protect against possible personal injury due to abrupt start of the machine, be sure to start the
following work after turning the power off and ascertaining that the motor is at rest.
❷
❷
❹
❸
❺
❶
Remove setscrew ❸ and remove the old mov-
1.
ing knife ❶ .
Press arrow mark plane A of new moving knife
2.
❶ ' to the machined plane of knife holder ❷ ,
and fixed it with setscrew ❸ .
When replacing counter knife ❺ , loosen set-
3.
screw ❹ , and remove the old counter knife ❺
in the lower direction.
Insert the new counter knife ❺ ' from the lower
4.
direction and fix it.
At this time, fix the counter knife ❺ ' with set-
screw ❹ after confirming regarding the height
of counter knife ❺ ' that the upper surface is
flush with the throat plate or slightly lower than
the throat plate.
(Caution) When knife holder ❷ is removed, per-
form the adjustment of engagement
again.
Adjust the position of cloth guide ❶ in accordance
with the kinds and thickness of the fabric so that the
hook knife can cut the material end at a fixed width.
Loosen setscrew ❷ , and move the cloth guide ❶ to
the right and left to adjust the position.
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