Brother PE-300S Service Manual page 2

This service manual has been compiled for explaining repair procedures of the model PE-300S.
This was produced based on up-to-date product specifications at the time of issue, but there may have been
changes of specifications for the purpose of improvements.
Contact manufacturer or local sales company for information concerning such changes.
I . PRINCIPAL MECHANISMS ............................................................................. 1
II . DISASSEMBLY AND REASSEMBLY OF THE SEWING MACHINE.............. 7
III . HOW TO ADJUST MECHANICAL ELEMENTS ............................................ 27
IV . HOW TO ADJUST ELECTRONIC ELEMENTS............................................. 49
1. Always use rubber gloves when handling printed circuit boards and never touch the metal portion of a printed
circuit board with bare hands.
2. Keep your body earthed in order to avoid generating static electricity.
3. Pack printed circuit boards in aluminum foil and avoid subjecting them to any form of impact during storage
or transportation.
4. Do not touch or damage the metal portion of a printed circuit board with a screwdriver or any other tool while
making repairs or the like.


Brother Industries, Ltd.
Nagoya, Japan