Toyota ESP9000, Service Manual

Page: 59 / 111

3.ADJUSTMENT
2.Needle bar height
[Inspection]
(1) Remove the table set.
(2) Remove the needle plate.
(3) Rotate the hand wheel anti-clockwise.
When the needle bar comes to the
bottom dead center, the distance from
the rotary hook center to the needle tip
must be 8.0 ±0.1mm (Fig.1).
[Adjustment]
(1) Remove the lower cover (Fig.2).
(2) Loosen the set screw of the needle bar
connecting stud, set the needle bar height
gauge, adjust the height and tighten the
screw. (Figs.3, 4).
Note: Change the needle to check the
needle can be easily changed.
Note: If the needle can not be easily
changed, check the distance from the
surface of needle bar connecting stud to
the bottom of the upper dead point
stopper must be 4.5±0.2mm (Fig.3).
(3) Mount the needle plate and the table
set.
FIG.1
8.0
±
0.1mm
Lower cover
-23-