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2. Maintenance of the AW device
2-1. Cleaning
Periodically carry out cleaning of each section of the device with an air gun supplied with the unit as an
accessory.
CAUTION :
In order to prevent the device from malfunctioning or being damaged, be sure to check the following
items before using it.
① Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of
the sewing machine.
② If a large quantity of sewing-machine hook oil gathers on the mechanical section of the device,
wipe off the oil before carrying out cleaning with an air gun.
2-1-1. Cleaning the periphery of hook
2-1-2. Cleaning the bobbin and bobbin case
* Be sure to carry out cleaning of the periph-
ery of hook every working day.
When sewing some types of materials, a great
deal of dust can be generated. In such a case,
carry out cleaning of the periphery of hook several
times a day where necessary.
1)
Remove the front cover from the device in ac-
cordance with
the AW-3 device cover"
2)
Remove large dust balls lint around the hook
with a pair of tweezers or the like.
3)
Carry out cleaning by blowing away dust re-
maining around the hook with an air gun.
* Be sure to carry out cleaning of the periph-
ery of hook every working day.
When sewing some types of materials, a great
deal of dust can be generated. In such a case,
carry out cleaning of the periphery of hook several
times a day where necessary.
1)
Wipe off oil and dust gathering on the bobbin
case. In particular, carefully wipe off oil and
dust from the bobbin case shaft section.
In addition, blow away oil and dust gathering
under the bobbin idling prevention spring
inside the bobbin case with an air gun.
2)
Clean the side face of bobbin to remove dust
and link gathering there.
– 148 –
"I-3-4-1. Attaching / removing
p.5.
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