Singer Centurion 121C - Page 29

From the library of Superior Sewing Machine & Supply LLC - www.supsew.com
DISASSEMBLY SEQUENCE
KNEE LIFT
MECHANISM
1.
Remove knee
lift
extension bar assembly.
2.
Remove screw,
washer
and
spring
clip
from bed
casting.
3. Remove hex nut,
washer
and
eccentric
cam
stud
from bed casting.
4.
Remove hex
nut
and
washer.
5. Remove screw.
6. Pull stud out.
7.
Loosen sleeve set
screw
from bed casting.
8. Remove
"E"
ring and
link
from bell crank,
unscrew
link
from
pivot
pin
and
remove
with oil seal.
9. Loosen set
screws
in stop arm,
collar
and
crank.
10. Remove
shaft
from rear to front, collar, sleeve, stop arm
with
spring,
drum
assembly
and
rock
shaft
crank
with pivot pin.
11. Remove
"E"
rings
and
vertical
link
from bell
crank
and
presser
bar
lifting
crank.
1
2.
Remove
screws
and
boll
crank
assembly
with
bracket.
13. Loosen set
screws
in
collar
and
crank.
14. Remove shaft,
thrust
washer,
collar
and
crank.
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