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VE2700-8
5. Proper operation
5.15 Cleaning the machine
Before performing this work, ALWAYS turn the
motor switch OFF and check that the motor has
already stopped.
The sewing machine should be cleaned at the end of every
working day.
Grooves of the stitch plate and the area around the feed
dogs, the looper thread take-up and the oil filter screen
should be cleaned once a week.
Checking at sewing factory (maintenance by technician)
Daily maintenance
(1) Before operation, remove the machine cover and tighten a slack in threads. Check that the thread hanger is
right above the spool seat discs of the thread stands (the thread stands should be fixed securely).
(2) Check the lubricating and silicone oil amount. Supply them if necessary.
(3) Check the order of threads.
(4) Check bend, damage to tips, and the installing positions of needles respectively.
(5) Check the sharpness of knives.
(6) Check the seam
by sewing a material for test.
◆ Stitch length, differential feeding
◆ Adjusting thread tension
(7) Check that the seal plug is surely attached.
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Fig. 5-20
If the oil filter screen is clogged with dust, oil in the cyl-
inder does not return to the oil reservoir. It can cause oil
leakage.
Clogged dust can cause breakage to parts and oil leak-
age.
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①
①
Weekly maintenance
(1) On weekends, clean the machine carefully after re-
moving the presser foot and the stitch plate.
(2) Check the tension of the V-belt.
(3) Check and supply lubricating oil.
(4) Check if oil is oozing due to looseness of the seal
plug and change it if necessary.
When using an air gun, keep the products
away from dust or waste threads.
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Do not loosen the positioning bush-
ing screws (yellow)
①. It may cause
position shifting of the stitch plate and
damage to the needles.
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