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13
Checking and adjustment aids
.05
Fig. 13 - 02
Turn the handwheel until the needle bar is approximately in the position required.
Insert the adjustment pin into the relevant hole provided and apply pressure.
Turn the handwheel slightly forwards and backwards until the adjustment pin engages in
the crank slot behind the bearing plate and thus blocks the machine.
Hole 1 =
Hole 3 =
Hole 4 =
Hole 5 =
Hole 6 =
The necessary needle bar positions can be fixed exactly by blocking
holes 1 and 3-6.
0.6 mm past the top dead center of the needle bar (0.6 past TDC)
0.6 mm past the bottom dead center of the needle bar (0.6 past BDC)
1.8 mm past the bottom dead center of the needle bar (1.8 past BDC)
top dead center of the needle bar (TDC)
4 mm past the bottom dead center of the needle bar (4 past BDC)
6
3
4
1
5
Adjustment
13 - 3
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