6.
Thread trimmer
6.1
Height of the thread trimming knife. Position of the counter-knife
Rules:
1. There should be a clearance (A) of 0.2 mm between the
thread-pulling knife (5) and the hook.
2. There should be a clearance (B) of 0.3 to 0.5 mm between the
counter-knife (6) and the thread-pulling knife (5).
3. At a clearance (C) of 1 to 2 mm, the knives should touch each other.
–
Loosen screws (1), (2) and (3). Push the holder (4) down.
–
Gently tighten screw (2) located on the surface of the shaft.
–
Tighten screw (3) until the distance (A) = 0.2 mm is reached.
Rule 1 is then fulfilled.
–
Tighten screw (2) and then screw (1).
–
Remove the post bed protective cover.
–
Loosen screws (7) and (4). Adjust the distance (B) = 0.3 to
0.5 mm, according to rule 2.
–
Gently tighten screw (4).
–
Turn the handwheel so that the pointer indicates 270°.
–
Use your hand to turn the thread take-up knife (5) to the distance
(C) = 1 to 2 mm. Then position the counter-knife so that the knives
gently touch (without pressure).
–
Tighten screws (7) and (4). Check that the knives touch each other
with the distance (C).
28
A
3
1
2
B
6
7
4
C
5
