Brother International S-7200C Basic Instruction Manual - English - Page 22

Adjusting the treadle, INSTALLATION, <Forward depression sensitivity adjustment&gt

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3. INSTALLATION 3-6. Adjusting the treadle 4259M If the machine starts running at low speed when your foot is simply resting on the treadle, or if the treadle pressure is felt to be too weak, adjust the position (a to c) at which the treadle spring (1) is hooked onto the treadle lever (2). * a is the weakest position, and it becomes gradually stronger at b, c and d respectively. 1. Loosen the nut (3) and turn the bolt (4). * When the bolt (4) is tightened, the treadle operation becomes heavier, and when it is loosened, the operation becomes lighter. 2. Tighten the nut (3). Remove the nut (5), and then move the connecting rod joint (6) from the position in figure A to the position in figure B. The treadle stroke will then be increased by approximately 27 %. At this time, the treadle forward and backward depression sensitivity will change, so readjust if necessary. 4260M 15 S-7200C

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S-7200C
3. INSTALLATION
15
3-6. Adjusting the treadle
<Forward depression sensitivity adjustment>
If the machine starts running at low speed when your foot is
simply resting on the treadle, or if the treadle pressure is felt
to be too weak, adjust the position (a to c) at which the
treadle spring (1) is hooked onto the treadle lever (2).
* a is the weakest position, and it becomes gradually
stronger at b, c and d respectively.
<Backward depression sensitivity adjustment>
1. Loosen the nut (3) and turn the bolt (4).
* When the bolt (4) is tightened, the treadle operation
becomes heavier, and when it is loosened, the
operation becomes lighter.
2. Tighten the nut (3).
<
Adjusting the treadle stroke
>
Remove the nut (5), and then move the connecting rod joint
(6) from the position in figure A to the position in figure B.
The treadle stroke will then be increased by approximately
27 %.
At this time, the treadle forward and backward depression
sensitivity will change, so readjust if necessary.
4259M
4260M