Lifting Motion Of Main- And Differential Feed Dogs - Pfaff 3801-3/07 Instruction Manual

Adjustment
13

Lifting motion of main- and differential feed dogs

.05.07
Fig. 13 - 07
● Loosen screws 1 and 2 (four screws).
● Set needle bar at t.d.c.
● Turn eccentrics 3 and 4 according to Requirement and fully tighten the accessible screws
● Turn balance wheel to make the remaining screws 1 and 2 access-ible and fully tighten
13 - 9
Requirement
With the needle bar at t.d.c. (hole 1) the cutouts of eccentrics 3 and 4 must face vertically
downwards.
3
1
1
1 and 2.
them.
4
3
4
2