Hook
Fig.
A
(211
G 351,357. 358)
Removal
1.
Remove
presser
feet,
throat
plate
and
feed
dog.
2.
Remove
bobbin
case
and
bobbin.
3. Turn out screws O and remove hook gibO .
4. Remove bobbin
case
base
©from
hook O .
5. Turn
out
screw©
.
6. Remove hook O with needle guard © from machine.
Replacement
1. Check proper seat of disc © on the hook shaft © .
2. Fasten needle guard © on the hook by placing its
stop © into the appropriate hole of the hook © .
3. Place needle guard © together with hook © onto
the hook shaft © so that the pin © is seated in
the
appropriate
hole
of
the
hook.
4. Tighten
screw
© .
5.
Place
bobbin
case
base
into hook
©.
6. Replace hook gib and fasten with screws © .
7.
Replace
bobbin
case
and
bobbin.
8. Replace feed dog, throat plate and
presser
feet.
©
O
©
©
14a