typical GC2605, Инструкция по эксплуатации и каталог запасных частей

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6.6 Adjusting the alternate lift amount of the presser
feet (Fig.35)
The lift amount of walking presser foot is within
5mm When sewing medium or heavy material, and the
lift amount of the psesser foot is about 3mm. The lift
amount of these two presser feet can be changed slightly
according to the nature of materials or requirements in
sewing.But the sum of these two presser feet lift amount
is nearly the same, as the other mechanisms are kept in
constant condition. In other words, the increasing of
walking presser foot lift amount will diminishes the lift
amount of presser foot, and vice versa.
When adjusting, loosen the clamping screw of the
presser foot lift front crank slightly with a screw driver
and turn the crank to overcome the friction on its shaft.
as shown in Fig.35. The lift amount of the walking
presser foot can the increased and the lift amount of
the presser foot is decreased if turn the crank clockwise.
The lift amount of the walking presser foot is decreased
and the lift amount of presser foot is increased when
turn the crank counter-clockwise.After that, tighten the
clamping screw.
6.7 Adjusting the lift amount of the presser foot
together with the walking foot.
The lift amount of the walking presser foot
together with the presser foot also can be adjusted
slightly. When adjusting, loosen the nut with a spanner
first, then move the presser foot lift regulating screw to
change its center distance B between the presser foot
lift shaft, as shown in Fig.37. The lift amount is
increased to shorten center distance B, and the lift
amount is decreased to widen center distance B.
After adjustment, tighten the nut again.
.
.
.
.
.
A
B
C
B
Forward
Needle
Stitch length
34
Presser foot
lift front crank
A
Clockwise
Counter
Nut
35
Nut
B
Pr esser f oot l i f t s haf t
Pr
esser f
oot l
i f
t r
egul
at i
ng s
cr
ew
36