Mechanical Adjustment; Needle Drop Position - Janome MC7700 QCP Service Manual

NEEDLE DROP POSITION

WHEN THE STRAIGHT STITCH IS SELECTED, THE NEEDLE SHOULD BE AT THE CENTER OF THE HOLE OF
THE NEEDLE PLATE. WHEN THE MAXIMUM ZIGZAG WIDTH (7.0) IS SELECTED, THE DISTANCE BETWEEN THE
NEEDLE AND THE EDGE OF THE HOLE OF THE NEEDLE PLATE AT THE RIGHT AND LEFT NEEDLE
POSITIONS SHOULD BE 0.2 mmOR MORE AS SHOWN IN FIG. 2.
HEXAGONAL
SOCKET SCREW (A)
THREADER
LEVER
HOLE OF NEEDLE PLATE
0.2 mm OR
MORE

MECHANICAL ADJUSTMENT

ECCENTRIC PIN (B)
FIG. 1.
0.2 mm OR
MORE
A=B
FIG. 2
1. OPEN THE FACE PLATE.
CHECK THE NEEDLE DROP POSITION ON THE
STITCH PATTERN (
WITH MAXIMUM WIDTH.
2. LOOSEN THE HEXAGONAL SOCKET SCREW (A)
JUST ENOUGH TO TURN THE ECCENTRIC PIN (B).
ADJUST THE NEEDLE DROP POSITION BY
TURNING THE ECCENTRIC PIN. THE DIRECTION
OF THE ECCENTRIC PIN (B) SHOULD BE AS
SHOWN IN FIG. 1.
3. TIGHTEN THE HEXAGONAL SOCKET SCREW (A).
CHECK THE CENTER NEEDLE POSITION SENSOR.
(SEE PAGE 29)
4. CLOSE THE FACE PLATE.
7
) AND ZIGZAG STITCH ( )