Pfaff Industrial 937, Руководство по настройке, Страница: 33 / 62

Adjustment
33
Fig. 13 - 28
438 - 439
418 - 41 9
13
.05.27
Hook bearing bracket
Rule
The hook shaft should touch the top and side of the hook bearing bracket setting gauge 1 .
O
Loosen the screw 3 .
O
Swivel the bobbin lifter to the right and remove the hook.
O
Loosen the screw
2
and loosen the linear cam underneath by tapping gently on the
screw head.
O
Screw on the hook bearing bracket setting gauge.
O
The numbers "
438
-
439
" must be legible from the front.
O
Adjust or turn the hook bearing bracket 4 according to the rule .
O
Tighten the screw 2 .
O
Adjust the bobbin lifter according to chapter 13.05.32 Bobbin lifter position.
1
4
3
2
1