Adjustment
11 - 7
11.
05.05
Bottom feed lifting motion
Requirement
At stitch length setting “ 0” and needle bar position 0.6 past b.d.c. on the
PFAFF 1051/
1181
and at needle bar position t.d.c. on the
PFAFF 1053/1183
,
1. the bottom feed dog must be at its highest position,
2. control cam 3 must rest on lifting eccentric 1.
The flat on control cam 3 must be parallel with the bedplate at needle bar position t.d.c. on
all machines types.
●
Set stitch length “ 0” and set needle bar at required position
●
Turn eccentric
1
(screws
2
) according to
Requirement 1
.
●
Adjust control cam
3
(screws
4
) according to
Requirement 2
.
●
Set needle bar at t.d.c. and adjust control cam
3
(screw
4
) according to
Requirement.
On machines without thread trimmer -900/24, control cam
3
serves as a
balance weight eccentric.
Fig.
11-06
shows a machine with thread trimmer fitted.
4
2
1
3
Fig. 11 - 06
