4. Installing the presser lifting lever
A
4
6
7
5. Installing the thread trimming knife
CAUTION
:
1. Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of
the sewing machine.
2. Do not touch your fi ngers or hands to the blade section of knife. so as to prevent fatal accidents.
3. Perform the adjustment work by the maintenance engineers who are familiar with the sewing machine
and trained for the safety so as to prevent accidents caused by unfamiliarity or wrong adjustment.
3
4
(Blade section) Dangerous
places of cut from the knives
3
2
6
1
5
1
2
1
− 5 −
At the beginning, insert boss section A of presser lifting
lever 1 into bracket 2 .
In this state, fi x it on thread tension base 7 with setscrew
3 .
Next, pass connecting link 5 as shown in the fi gure and
insert O-ring 6 into the both ends of it.
Finally, fi x it with setscrew 4 .
Apply the grease (Part No.: 40013640)
supplied with the unit to the sliding parts
encircled with
once every three months.
Put bottom thread trimming knife 1 on top thread trimming
knife 2 , insert them into knife cover 3 , and install them
with two screws 4 as shown in the fi gure.
When installing the knives, perform the
work while taking care of the cut of fi ngers.
(four locations) at least