Installing The Bobbin Case - Brother Z-8550B Instruction Manual

Installing the bobbin case

• Turn off the power switch before installing the bobbin case. The machine may operate if the treadle
is depressed by mistake, which could result in injury.
1
Turn the machine pulley to raise the needle until it is above the needle plate.
2
While holding the bobbin so that the thread winds to the left, insert the bobbin into the bobbin case.
3
Pass the thread through slot (1) and hook it under the tension spring (2).
4
Pass the thread back through the slot (3) and then pull it out from the thread guide (4).
Guide to identification for thread guide (4) A and B
A Normally A should be used.
B The amount of lower thread feeding-out is greater than for A, so this is ideal for extremely
stretchy materials and medium-weight materials.
5
Check that the bobbin turns counterclockwise when the thread is pulled.
6
While holding the latch (5) of the bobbin case, insert the bobbin case into the rotary hook.
NOTE
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