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(5) Clearance between the throat plate and the bobbin case stopper
Standard Adjustment
oSize A (mm) of a clearance between the upper plane of the throat plate hook stop section groove and the
upper plane of the inner hook stop section .
Part No. Name of part Engraved mark Thickness (mm)
10109700 Hook driving shaft upper bushing thrust plate A 0 1
10110906 Hook driving shaft upper bushing thrust plate C 1 1.1
10111003 Hook driving shaft upper bushing thrust plate D 2 1.2
10111102 Hook driving shaft upper bushing thrust plate E 3 1.3
10111201 Hook driving shaft upper bushing thrust plate F 4 1.4
10109809 Hook driving shaft upper bushing thrust plate B 5 1.5
10112506 Hook driving shaft upper bushing thrust plate G 6 1.6
10112605 Hook driving shaft upper bushing thrust plate H 7 1.7
10112704 Hook driving shaft upper bushing thrust plate K 8 1.8
22614002 Hook driving shaft upper bushing spacer A A 1.9
22614101 Hook driving shaft upper bushing spacer B B 2.0
22614200 Hook driving shaft upper bushing spacer C C 2.1
22614309 Hook driving shaft upper bushing spacer D D 2.2
22614408 Hook driving shaft upper bushing spacer E E 2.3
22614507 Hook driving shaft upper bushing spacer F F 2.4
Dimension A
Model Dimension A (mm)
LH-4128
LH-4128-7
LH-4168-7 0.9±0.1mm
LH-4188-7 1.0±0.1mm
0.8±0.1mm
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