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).
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 period of time with a watch).
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
generate heat or the sewing material 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.
Figure 10
Adjusting the amount of oil supplied 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
After adjustment the machine must | Figure 11 |
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be idling for thirty seconds. It can be |
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confirmed the state of oil supplied. |
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High Speed Straight Lockstitch Sewing Machine Instruction Manual and Parts List 9