Adjustment
77
Fig. 13 - 10
3
4
1
6
5
8
7
2
13
.06.10
Position of the main and differential feed for PFAFF 3811-3/55
Rule
When the needle bar is in t.d.c. (adjusting hole
1)
is established and the largest stitch
length is set, then
1. The main feed dog should be parallel at
1.4 mm
and the differential feed should be
parallel at
1.9 mm
above the stitch plate,
2. Both feed dogs lie in the centre of the stitch plate cutout and
3. stand at a clearance of 4 mm apart.
Move the needle bar to t.d.c. and set the largest stitch length.
Loosen the screws
1, 2, 3
and
4.
Turn the feed dog carrier
5
and
6
according to
rule
1.
Lightly tighten screws
1
and
2.
Turn eccentric bushes
7
and
8
in accordance with rules
2
and
3.
Tighten the screws
3
and
4
in this position.
Tighten the screws
1
and
2
in accordance with rule
1
.
3
4
1
1.4 mm
1.9 mm
4 mm
Summary of Contents for 3811-15/65
Page 6: ...Table of Contents Contents Page...
Page 135: ...135 16 Table Top 16 01 Table top cutout Table top assembly deep...
Page 137: ...Notes...