How To Set A Bobbin - JUKI AW-3S Instruction Manual

3-3. How to set a bobbin

This device uses two bobbin cases each of which is fitted with a bobbin.
(1) How to fit a bobbin in the bobbin case
❶
1) Put a drop of oil No. 2 in the bobbin case
before placing bobbin ❶ in it.
2) Fit a bobbin in the bobbin case so that clutch
holes ❷ (at two locations) of bobbin are
brought to the open side.
❷
– 8 –
Before fitting a bobbin in the bobbin
case, wipe the bobbin case to remove
oil and dust. In particular, wipe the
shaft section of bobbin case to remove
oil and dust. In addition, blow out, with
an air gun, oil and dust gathering under
the bobbin idling prevention spring in
the bobbin case.