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Adjusting The Safety Switch Position - Brother S-7220C Instruction Manual

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8-1. Adjusting the safety switch position

0571D
Sewing
machine
The safety switch (1) is normally installed as shown in figure
[A].
However, if the processing method used for the table leaves
too much space between the machine head and the table
hole, it may adversely affect the operation of the safety
switch (1).
<Adjustment method>
The standard amount of clearance between the machine
head and the table hole is 1.5 mm.
If the clearance is 3.5 mm or more, install the safety switch
(1) so that the washer (2) is on the machine head side as
shown in Figure [B].
* If the position cannot be satisfactorily adjusted in this way,
add more washers of the same thickness.
<Safety switch operation>
Table
3690M
S-7220C
8. STANDARD ADJUSTMENTS
If the spring stroke is to small, the safety
switch will not operate.
3.5 mm or more
Clearance
is too large.
By changing the position of the safety switch,
the required spring stroke can be maintained.
Reduce the clearance.
3691M
3692M
34

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