Adjusting The Presser Foot - JUKI MF-7800D Series Engineer's Manual

(14) Adjusting the presser foot

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
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
2. Position of the thrust collar
(1) Clearance provided between thrust collar
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
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
Standard Adjustment
is lowered and comes in contact with height adjustment
and presser shaft bushing
0.1mm
A
Throat plate
– 40 –
is 0.1 mm at the position where
.
and hinge screw to 0.5 mm when the
Center of needle entry