Bobbin-Thread Clamp Spring - Pfaff 242 Service Manual

Adjustment
11

Bobbin-thread clamp spring

.05.14
11 - 37
Requirement
1. Between clamp spring 5 and the bottom of thread catcher 4, there must be a distance
of 0.3 mm.
2. At the front point of reversal of thread catcher 4, the points of clamp spring 5 must be flush with
the back edge of catcher 4 (see arrow).
3. There must be a distance of approx. 12 mm or
8 mm 8 mm (on PFAFF 242 and 244 8 mm on PFAFF 242 and 244 on PFAFF 242 and 244) between the inner edge of clamp spring 5 and guide sleeve 7. on PFAFF 242 and 244
8 mm 8 mm on PFAFF 242 and 244
4. It must be posible to insert and remove the bobbin-case from the hook without any interference.
7
4
Fig. 11 - 35
Align carrier 1 (screws 2) in such a way that it is in the middle of its adjustment range
and parallel to the bedplate of the machine.
Unhook spring 3 (see Page 11-38)
Manually pivot thread catcher 4 over clamp spring 5.
Bend clamp spring 5 in accordance with requirement 1.
Hook spring 3 back in again.
Bring the machine to needle rise position, activate the engaging lever and bring the
thread catcher to its front point of reversal by turning the balance wheel.
12 mm or 12 mm or 12 mm or
12 mm or
1
6
2
5
4
0.3 mm