Brother LH4-B800E Service Manual page 58

q
e
t
u
r
y
@1
@3
@4
Install the screw q to the base plate w. Install the lever assembly e and the lower thread retainer r to the base plate
w with the collar t and the screw y. Install the lower thread retainer r to the lever assembly e with the two screws
u.
Insert the roller of the lever assembly e into the cam groove of the knife driving lever i.
Install the knife driving lever i to the base plate w with the shoulder screw o, collar ! 0 , washer U ! 1 and washer D
! 2 .
Install the lower thread clamp plate assembly !3 to the base plate w with the shoulder screw !4 , plain washer !5 and
curved washer !6 . Install the lower thread presser !7 to the base plate w with the shoulder screw !8 and the screw !9 .
Install the fixed knife set @0 to the knife driving lever i with the two screws @1 .
Install the needle plate @2 with the pan screw @3 so that it is parallel to the base plate w.
Provisionally install the base plate w to the top of the bed with the four screws @ 4 .
While pushing the base plate w to the right so that the needle @5 is in the center of the needle hole @6 in the longitu-
dinal direction, securely tighten the screws @4 .
Connect the lower thread trimmer link assembly @ 7 and the knife driving lever i with the shoulder screw 4.37 @ 8 .
Install the length feed plate @ 9 to the feed arm support # 0 with the bolt # 1 and washer # 2 .
Install the feed presser plate #3 with the screw #4 so that the feed mechanism moves easily when it is moved back and
forth by hand.
w
!7
!9
!8
!3
!6
!5
!4
!2
i
Apply grease to cam groove i
!0
Apply grease to !0
!1
o
@0
@2
w
Press down
Forward
@5
#3
LH4-B800E
3. ASSEMBLY
Back
@6
@2
w
i
@8
@7
#1
#2
#0
#4
#3
@9
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