Brother DB2-DD7100, Service Manual

Page: 69 / 153

6. ASSEMBLY
SL-710A
62
6-34. Adjusting the safety switch position
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 1.25 mm. (At this time, the
clearance between the safety switch (1) and the table
hole is 4.5 mm.)
If the clearance is too great, place a washer (2) on the
machine head side as shown in figure (B) and re-install
the safety switch (1).
*
If the position cannot be satisfactorily adjusted in this
way, add more washers of the same thickness.
1810M
(1)
(2)
[B]
[A]
(1)
(2)
Table
Machine bed
4.5 mm
1.25 mm
1811M
By changing the position of the safety switch,
the required spring stroke can be maintained.
1812M
1813M
(2)
(2)
4.5 mm
Clearance
is too large
If the spring stroke is to small, the safety
switch will not operate.
<Safety switch operation>
By changing the position of the safety switch, the
required spring stroke can be maintained.