Replacing Parts; Thread Trimming (Other Than Premier Specifications) - Brother S-7300A Service Manual

8. REPLACING PARTS

Replacement of parts should only be carried out by a
qualified technician.
Use only the proper replacement parts as specified
by Brother.
Turn off the power switch and disconnect the power
cord before replacing any parts.
The machine may operate if the treadle is depressed
by mistake, which could result in injury.

8-1. Thread trimming (Other than premier specifications)

CAUTION
Use both hands to hold the machine head when
tilting it back or returning it to its original position. If
only one hand is used, the weight of the machine
head may cause your hand to slip, and your hand
may get caught.
Be sure to wear protective goggles and gloves when
handling the lubricating oil and grease, so that they
do not get into your eyes or onto your skin, otherwise
inflammation can result.
Furthermore, do not drink the oil or eat the grease
under any circumstances, as they can cause
vomiting and diarrhea.
Keep the oil out of the reach of children.
1. Turn off the power switch.
2. Remove the presser foot, needle plate and feed dog.
3. Tilt back the machine head.
4. Loosen the screw (2) of the thread trimmer lever (1).
1187D
5. Install the movable knife (4) to the movable knife holder
(5) with the two screws (3).
1188D
S-7300A
8. REPLACING PARTS
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