Adjusting The Treadle Unit; Operating The Treadle - Brother MD-602 Service Manual

6. Adjusting the treadle unit

6.1 Operating the treadle

• There are two types of treadles, one with one forward and one rear stage and one with two forward and two rear
stages. These are provided according to the destination of the machine.
6.1.1 For treadles with one forward and one rear stage
Take your foot off the treadle before turning on the power switch.
q
Neutral
w
Low speed
e
High speed
1. The treadle is at the neutral position q when the treadle is not pressed.
2. When the treadle is gently depressed to position w, low-speed sewing is carried out. If it is then depressed as far as
e, high-speed sewing is carried out.
3. When the treadle is pressed forward and then back to the neutral position q, the needle will stop below the needle
plate (when needle down stop mode has been set).
4. When the treadle is depressed backwards to position r (or when the treadle is pressed backward to position r and
is then returned to neutral position q), the thread trimmer operates, and then the needle will be raised and stop
above the needle plate.
5. If using with the synchronizer cord disconnected
• When the treadle is pressed forward and then back to the neutral position q, the machine will stop regardless of
the needle position.
• Thread trimming will not be carried out even if the treadle is pressed backed to position r. (The sewing machine
does not operate.)
6. If an automatic presser foot lifter is being used
• The presser foot will rise when the treadle is pressed backwards. If the knee switch is pressed, the pressure foot will
not raise with the treadle operation, so raise and lower the presser foot with the knee switch.
• When the treadle is pressed backwards and the thread is trimmed, the sewing machine will stop, and the presser
foot will rise. To lower the presser foot, press the treadle backwards and then return it to the neutral position q. The
presser foot can also be lowered using the knee switch. If the treadle is pressed forward, the sewing machine will
operate after the presser foot lowers.
Note:
The presser foot can be raised and lowered by returning the treadle only from when the power switch is turned on to
when the knee switch is operated.
10
CAUTION
MD-602, 612
r
Thread trimming