JUKI LH-4128-7, Engineer'S Manual

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Standard Adjustment
5) Needle entry
Conditions
o Needle bar should be in the lowest dead point.
o Feed amount : Minimum
o The needle should enter of the needle slot in
the feed dog.
Needle slot in the feed dog
4) Needle clamp
Conditions
o Needle bar should be in
the lowest dead point.
o Feed amount : 2.5mm
B
C
D
1.2mm
2.2mm
[Dimension for reference] Needle clamp height at the lower dead point of the needle bar
Throat plate mounting surface
A A
o Spec. S•F o Spec. G
LH-4128, 4128-7 LH-4168-7 Spec.S LH-4168-7 Spec. G LH-4188-7
Dimension A 15.1
±
0.15mm 15.8
±
0.15mm 14.6
±
0.15mm 15.2
±
0.15mm
o LH-4128
o LH-4128-7
Feed bar
o LH-4168-7
o LH-4188-7
Throat plate mounting surface