typical GC6760 SERIES, Руководство по установке, инструкции и обслуживанию

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TYPICAL GC6760 Series
9 // ADJUSTING THE HOOK LUBRICATION
When you replace the hook or set the sewing speed of the
machine, check how much oil is exposed to the hook with the
help of the following instructions.
9/1 Checking and adjusting the amount of lubrication
1. Remove the upper thread.
2. Lift the sewing foot with the lifting lever.
3. Let the machine run for approx. one minute without really
sewing. Follow the same start and stop pattern as you
would normally do.
4. Place the oil check paper (1) below the hook (2) and hold
it in position. (You can also use a normal sheet of paper
instead of the oil check paper) Let the machine run at
normal speed for 8 seconds.
5. Check the amount of oil sprayed on the paper.
Too much Correct Too little
Sprayed oil
More oil Less oil
Bed
Caution
Do not touch any moving parts like the hook or the feeding mechanism,
when you check the hook oil level with the help of an oil check paper. Injury may occur.
approx. 70 mm
6. Turn the adjusting screw (3) to regulate the amount of
lubrication. Turn clockwise to increase lubrication and
anti-clock wise to decrease the amount of lubrication.
7. Check the amount of lubrication again.
8. Repeat until you have the desired amount of
hook lubrication.
9. Check the oil level again after the machine was for 2
hours in use.
approx. 25 mm