Replacing The Fixed Knife And Movable Knife - Brother S-7100A-403 Instruction Manual

6. REPLACING THE FIXED KNIFE AND MOVABLE KNIFE

6 . REPLACING THE FIXED KNIFE AND MOVABLE KNIFE
Replacement of parts should only be carried out by a qualified technician.
Turn off the power switch and disconnect the power cord from the wall outlet before replacing any parts, otherwise
the machine may operate if the treadle is pressed by mistake, which could result in injury.
When replacing parts and installing optional accessories, be sure to use only genuine Brother parts.
Brother will not be held responsible for any accidents or problems resulting from the use of non-genuine parts.
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CAUTION
<Fixed knife>
1. Tilt back the machine head.
2. Remove the screw (1), and then remove the rotary hook
stopper (2).
3. Remove the screw (3), and then remove the fixed knife
(4).
NOTE:
Carry out the above steps in reverse to install the fixed
knife (4).
0541D
Sharpening the fixed knife
If the cutting performance deteriorates, sharpen the fixed
knife (4) on a whetstone (5) as shown in the illustration.
2310M
<Movable knife>
3889M
1. Remove the needle.
2. Lift up the presser foot using the lifting lever.
3. Remove the two screws (1), and then remove the needle
plate (2).
4. Turn the machine pulley to raise the needle bar to its
highest position.
5. Tilt back the machine head.
6. Push the thread trimmer connecting rod (3) in the
direction of the arrow until the two screws (4) can be
seen.
7. Remove the two screws (4), and then remove the
movable knife (5).
NOTE:
Carry out the above steps in reverse to install the
movable knife (5).
0542D
S-7100A