Brother BE-438B Sewing Machine User Manual


 
8. ELECTRIC MECHANISM
--. Light work clamp
For pneumatic specifications, the hose connections can be changed so that the work clamp are made to lower
gently when the work clamp pedal is depressed to the 1st step, and firmly when the work clamp pedal is
depressed to the 2nd step. This makes it easier to carry out position matching when attaching small articles
such as labels.
[Memory switch setting]
Set memo-42 (memo-3b: KE-436B, 436C) to 5 for two-pedal mode so that the work clamps lower in the order
of left then right for the standard hose connection. (Refer to “8-6./8-7. Explanation of the memory switches”.)
Hose connections for light work clamp operation by both pressers
Plug
Branch
0344Q
[H
ow to use]
1. Depress the work clamp pedal to the 1st step to lower the work clamps and apply a light pressure. You can
then position small articles such as labels at this time.
2. After checking that everything is positioned correctly, depress the work clamp pedal to the 2nd step to firmly
clamp the article being sewn.
3. Press the start pedal to start sewing.
Other hose connections and corresponding operations
The hoses can be connected in combinations other than the one shown above so that only one side of the
work clamp operates in light work clamp mode.
Cylinder connectors
Branch and plug
connectors
A B C D
Operation when presser pedal is depressed to the 1st step
Branch: 1B, 2A
Plug: 1A, 2B
1B 2A 1B 2A
Both pressers operate in light work clamp mode
(example shown above)
Branch: 1B
Plug: 2B
1B 2A 1B 1A
Only left presser lowers, and it lowers in light work clamp
mode
Branch: 1B
Plug: 2B
1B 1A 1B 2A
Only right presser lowers, and it lowers in light work clamp
mode
Branch: 2A
Plug: 1A
1B 2A 2B 2A
Both pressers lower, but only left presser lowers in light work
clamp mode
Branch: 2A
Plug: 1A
2B 2A 1B 2A
Both pressers lower, but only right presser lowers in light work
clamp mode
KE-430B, 430C series
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