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1. Height of the presser foot
Height of the presser foot has to be the position the presser foot does not come in contact with other
components at the position where lifter lever
is lowered and comes in contact with height adjustment
screw
.
Dimension A
8 mm in case of needle gauge 5.6 mm without top covering
5 mm in case of needle gauge 5.6 mm with top covering
(14) Adjusting the presser foot
2. Position of the thrust collar
(1) Clearance provided between thrust collar
and presser shaft bushing
is 0.1 mm at the position where
lifter lever
is lowered and comes in contact with height adjustment screw
.
3. Position of the lifter connecting plate
(1) Adjust the clearance provided between lifter connecting plate
and hinge screw
to 0.5 mm when the
presser foot is lowered in the state that the feed dog comes down below the throat plate.
(2) Adjust so that the needle enters in the center of needle entry of the presser foot and fix the presser foot with
setscrew
in the presser bracket.
0.5mm
0.1mm
A
Throat plate
Standard Adjustment
Center of needle entry
Summary of Contents for MF-7800D Series
Page 64: ...60 5 Adjusting the upper knife stroke A B Standard Adjustment H21...
Page 66: ...62 MEMO...
Page 80: ...76 3 Adjusting the elastic band presser plate 0 5mm Standard Adjustment E10 A A Approx 7 5 mm...
Page 84: ...80 MEMO...
Page 94: ...90 3 Setting of SC 510 2 Change of the setting Type B Type A Standard Adjustment UT25...
Page 114: ...110 MEMO...
Page 118: ...114 2 Installing SC 510 1 Wiring SC 510 Standard Adjustment UT22...
Page 124: ...120 MEMO...
Page 134: ...130 MEMO...
Page 142: ...138 7 Feed timing of the roller A Standard Adjustment PL11 C D B...
