Toyota 2D - Page 16

14
Troubleshooting
1. Needle and
needle plate
Needle
sideways
movement
<Condition>
<SD>
Pattern selection dial: "11"
<2D>
Pattern selection dial: "7"
<3D>
Pattern selection dial: "3"
Stitch width lever: "5"
<Diagnosis>
When the needle travels from left to right,
measure the distance (A) from the sur-
face of needle plate to the needle point.
<SD, 2D>
A = 5 to 7 mm
<3D>
A = 3 to 5 mm
[Adjustment]
page.32
2. 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, mea-
sure the clearance (A) between the nee-
dle and the hook.
A = 0.03 to 0.08
mm
[Adjustment]
page.26
Step Item Diagnosing Method Standard
Reference
Page