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High Speed Straight Lockstitch Sewing Machine | Instruction Manual and Parts List
3.6
Rotating Hook
Oil Supply
Adjustment
Unused machine should run idle for
3 minutes (Moderate intermittent
operation).
The amount of oil confirmation paper
must be inserted in the state when
the machine is running (Figure 9).
Sample showing the appropriate
amount of oil (Figure 10)
The amount of oil can be adjusted
according to the different sewing
process but it must be a suitable
amount. Otherwise the hook will
Adjusting the amount of oil sup-
plied to the hook (Figure 11)
Turning the oil adjusting screw of the
hook shaft bushing on bed toward
‘+’ in direction ‘A’, the oil amount
will be increased, and toward ‘-‘ in
direction ‘B’, the oil amount will be
decreased.
After adjustment the machine must
be idling for thirty seconds. It can be
confirmed the state of oil supplied.
Make sure the oil in the oil reservoir
is within ‘MAX’ and ‘MIN’.
The confirming time of the oil
amount is 5 seconds (check the pe-
riod of time with a watch).
Figure 9
Figure 10
Figure 11
generate heat or the sewing mate-
rial will be contaminated.
Use the amount of oil confirmation
paper for three times to observe the
amount of oil. Adjust the screw until
the mark on the paper unchanged.