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VG3511-8F
5. Proper operation
5.15 SP device and HR device
5.16 Cleaning the machine
Fig. 5-18
Fig. 5-19
Fig. 5-20
Use SP device (needle thread oiling) equipped as standard
to prevent thread breakage and skip stitch when running
a machine at high speed or using synthetic thread and/or
synthetic fabric.
Also use HR device (needle point cooling) as an extra.
Use dimethyl silicon oil.
Open the lid ① of SP container and the lid ② of HR con
-
tainer to check the oil level.
Clean waste thread and dust inside the machine at the end
of work a day.
Remove the seal plug ③ at the back of the machine and
clean the grooves in the stitch plate, feed dog area, and oil
filter screen area once a week.
1. When not using SP device and HR device, remove the
felts. If not removed, it may occur irregular condition
during sewing.
2. If silicone oil is attached to the parts other than SP
and HR devices, it can cause the machine trouble. Be
sure to wipe it away.
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.
Before operating, ALWAYS turn the power switch OFF and check that the machine has already stopped.
①
②
③
NOTICE
Summary of Contents for VG3511-8F
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