－9－
5-7 HR Device and SP Device
Sometimes heat generated on the needle by the friction
with the material at high speed operation causes such
troubles as thread breakage, skip stitch and widening of
stitch hole especially when using synthetic threads and
fabrics.
To reduce these troubles, HR Device (needle point
cooling) and SP Device (needle thread oiling) are the
standard equipment for this machine.
Using oil of sylicone system is most effective.
Note 1: Open Lid① of HR Container and Lid② of SP
Container and check the oil.
If it is running short, supply it.
Note 2: Though it is recommended to use HR and SP
Devices, when they are not used judging from
the sewing condition, remove Felt because it
might be better for the needle and thread not to
touch the dry Felt.
①
②
