Machine head
68 Service Instructions 745-35-10 S/745-35-10 A - 02.0 - 04/2017
Information
The blade (3) will become blunt after a certain service life. The blunt blade
needs to be removed for resharpening.
When switching to a different needle distance, you will have to replace the
thread-pulling knife (5) as well.
To replace blade and thread-pulling knife:
1. Unscrew the entire thread-pulling knife from the machine head.
2. Loosen the screw (2).
3. Remove the blade (3).
4. Loosen the screw (1) and remove the knife guard (6).
5. Loosen the screw (4) (on the rear).
6. Remove the thread-pulling knife (5).
7. Insert a new thread-pulling knife and tighten it with the screw (4).
8. Fit a new blade (3) and tighten it with the screws (2). When doing so,
set the dimensions 5 mm and 1.5 mm.
Fig. 56: Replacing blade and thread-pulling knife (3)
9. Carry out a cutting and clamping test. If necessary, use the screw (7)
to adjust the clamping pressure.
Assembling a complete thread-pulling knife
To assemble a complete thread-pulling knife:
1. Assemble the complete thread-pulling knife so that the thread-pulling
knife (5) is centric between the needles.
2. Adjust the height of the thread-pulling knife such that the dimension
between sliding plate and bottom edge of the thread-pulling knife (5)
is 27+/- 1 mm.
(3) - Blade
(5) - Thread-pulling knife
(7) - Screw
To Next Page
Loading...
