Pfaff 3801-11/071, Инструкция по эксплуатации, Страница: 85 / 126

Adjustment
13 - 22
Fig. 13 - 19
0,3 mm
7
5
7
1
3
2
4
7
8
9
6
13
.05.19
Looper height and looper angle (for the 3801-3/071 and -11/071)
Requirements
When the looper carrier 1 is vertical
1. there must be a clearance of 0.3 mm between the highest point of the back of the
looper and the bottom of the thread trapper 9 , and
2. looper 6 must touch looper adjustment gauge 8 .
●
Position looper carrier 1 so that it is vertical.
●
Disassemble needle plate and bottom feed dog.
●
Turn eccentric bearing pin 2 (screws 3 and 4 ) according to requirement 1 .
●
Check adjustment.
●
If the required clearance is not achieved, replace the spacer 5 . To do this, looper 6
(screw 7 ) must be dismounted.
●
Lay looper adjustment gauge 8 (Part No. 61-111 643-06) on the left edge of the cover plate
groove (see arrow) and slide against looper 6 .
●
Position looper 6 (screw 7 ) so that it touches looper adjustment gauge 8 ( requirement 2 ).
Spacer Part No. Spacer Part No.
0,3 mm 91-170 693-05 0,8 mm 91-169 615-05
0,5 mm 91-169 614-05 1,2 mm 91-170 694-05