Pfaff hobbylock 787 Instruction Manual page 21

2-thread overeoge seam
er
n
Adjustable range 5.2 to 7.2 mm Adjustable range 3 to 5 mm
r is
Left needle
Standard seam width N
Rght needle
Standard seam width N
B
/
/
/
/,
/1 /
'
The left-hand llustration shows the
2-thread oeredge seam with correctly
set thread tensions.
Possible correction requirements:
1. Looper read A is too loose (yellow
thread tension>.
2. Needle thread B is too tight (blue or
green thread tension>.
3. Both tensions have to be corrected.
1. Looper thread A is too tight (yellow
thread tensIOnl
2. Needle thread B is too loose blue or
green tnread tension).
3. Both tensions have to be corrected.
19