Brother LH4-B800E, Service Manual

Page: 27 / 168

LH4-B800E
2 - 2
2. DISASSEMBLY
2-2. Lower thread trimmer assembly
Remove the screw
q
, and then remove the feed presser plate
w
.
Remove the bolt
e
and the washer
r
, and then remove the length feed plate
t
from the feed arm support
y
.
Remove the shoulder screw 4.37
u
.
Remove the four screws
i
, and then remove the base plate
o
.
Remove the pan screw
!0
, and then remove the needle plate
!1
.
Remove the two screws
!2
, and then remove the fixed knife set
!3
from the knife driving lever
!4
.
Remove the shoulder screw
!5
and the screw
!6
, and then remove the lower thread presser
!7
from the base plate
o
.
Remove the shoulder screw
!8
, plain washer
!9
and spring washer
@0
, and then remove the lower thread clamp plate
assembly
@1
from the base plate
o
.
Remove the shoulder screw
@2
, collar
@3
, washer U
@4
and washer D
@5
, and then remove the knife driving lever
!4
from the base plate
o
.
Remove the two screws
@6
, and then remove the lower thread retainer
@7
from the lever assembly
@8
.
Remove the collar
@9
and the screw
#0
, and then remove the lever assembly
@8
from the base plate
o
.
Remove the screw
#1
.
t
r
e
w
q
u
y
!4
w
!0
o
i
!1
o
!5
!4
!3
!2
@0 !9
!8
!7
!6
#0
@2
@4
@7
@8
@9
@1
#1
@6
@5
@3