Adjustment
17
13
.05.11
Looper motion
Requirement
When the needle bar reaches its bottom dead center (BDC), the looper must be at its
right point of reversal.
Checking the exact right point of reversal:
Take needle system 4463 KKS size 80.
Turn the balance wheel until the point of the looper advancing from the right is at the
right-hand side of the needle.
In this position attach C-clamp (order No.
61-111 600-35/001
) to the needle bar so that the
upward motion of the needle bar is blocked.
Turn the balance wheel in the opposite direction until the C-clamp regains contact. In this
position the looper point must be at the left-hand side of the needle again.
Repeat control procedure.
1
2
Fig. 13 - 12
Summary of Contents for 3806-12/22
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