11
3.5.2.3
Setting of the feeder position against
the throat plate
The correct position of the feeder is such when the feeder
symmetrically moves in the slot of the throat plate in forward
and backward direction and above and below the throat plate
as well. The feeder must have in the slot lateral play on each
side.
Caution! Danger of injury!
Switch off the main switch! Before starting the
setting operation, wait until the motor stops!
- Loosen the screw (7) of the gripping joint of the lever (8).
- Set the lateral play of the feeder in the throat plate by axially
shifting the lever (8) and consequently the feeder holder
(10) and the feeder (3).
-
Using the handwheel, set the needle into its bottom dead
centre (the feeder is in its maximum position above the
throat plate).
- Loosen the screw (1) of the gripping joint of the lever (2)
(this will separate the feeder from the source of the horizontal
component of the feeder movement).
- In moving the feeder (3) in forward or backward direction,
set the middle position of the feeder in the slot of the throat
plate.
- Tighten the screw (1), check the movement of the feeder
with the maximum stitch length (the gap in the throat plate
slot must be the same before and behind the feeder)
- After having loosened the screw (4) of the lever (5), in turning
the eccentrric (6), we can change the height of the feeder
above the throat plate.
- After having loosened the screw (7) of the lever (8), inturning
the eccentric (9), we can change the longitudinal inclination
of the feeder with regard to the throat plate /the optimum
position has been set up in the manufacturing factory the
cutting of the of the eccentric (9) is situated at the spot of
the cutting of the gripping joint of the lever (8)/.
To observe:
Incorrect adjustment can result in needle bending
or breaking and in collisions between the feed-
dog and the throat plate.
3.5.2.4 Setting of the height of the feeder teeth
The height of the feeder teeth is to be set according to the
stitching category from 1,2 to 1,4 mm above the throat plate.
Caution! Danger of injury!
switch off the main switch! Before starting the
setting operation, wait until the motor stops!
- Set the height of the feeder teeth after having done the
previous setting (par. 3.5.2.3).
-
Using the handwheel, set the needles into its bottom dead
centre (the feeder is in its maximum position above the
throat plate).
- Loosen the screw (1) of the lever (2).
- Using the notches on the eccentric (3), adjust the angular
position of the eccentric (3) so as to obtain the required
value of the eccentric height.
- Tighten the screw (1), check the setting.
1
2
3
7
8
9
5
4
6
10
1,2÷1,4
1
3
2
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