Toyota 2D - Page 10

8
Troubleshooting
1. Needle and
hook
Clearance
between
needle and
hook
<Condition>
<SD>
Pattern selection dial: "6"
<2D>
Pattern selection dial: "4"
<3D>
Pattern selection dial: "3"
Stitch width lever: "0"
<Diagnosis>
Turn the handweel beyond the lower dead
point of needle bar. When the hook blade
point has protruded by 0.1 to 0.2 mm from
the side face of needle, measure the clear-
ance (A) between the needle and the
hook.
A = 0.03 to 0.08
mm
[Adjustment]
page.26
Amount of
needle
elevation
<Condition>
<SD>
Pattern selection dial: "5"
<2D>
Pattern selection dial: "3"
<3D>
Pattern selection dial: "4"
<Diagnosis>
Remove the extension table, and open the
shuttle cover.
When the hook blade point is aligned with
the needle center by rotating the hand-
weel, measure the travel distance (A) of
needle bar, regarding the lower dead point
of needle bar as 0.
A = 1.85 ± 0.15
mm
[Adjustment]
page.26
Step Item Diagnosing Method Standard
Reference
Page