Replacing The Looper Thread Trimming Knife (Overall Thread Trimmer Type) - JUKI MEB-3810N Series Instruction Manual

(3) Replacing the looper thread trimming knife (overall thread trimmer type)

WARNING :
1. Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start
of the sewing machine.
2. To avoid unexpected personal injuries, be sure to keep away from the looper thread trimming
knife during work.
Looper thread trimming knife unit
[Replacement procedure]
❶
❷
❸
❺
❽
❹
❼
When the looper thread is not cut sharply, replace
the looper thread trimming knife with a new one. The
part number of the looper thread trimming knife is
40115260.
1) Close the air cock (refer to
hose" p. 27) to remove air.
2) Remove screw ❶, washer ❷ and square die ❸.
3) Loosen the setscrew ❽ to remove collar ❹.
4) Remove screw ❻ and washer ❺.
❻
5) Remove knife unit ❼. Assemble a new knife unit
(part number: 40115260) and fix it by tightening the
screw.
6) Open the air cock (refer to
hose" p. 27) to supply air.
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"3-14. Installing the air
"3-14. Installing the air