Chapter 9 Maintenance
!1
!2
w
q
o
!8
!3
!3 !3 !3
!3
y
i
y
t
r i
u
e
!0
!3
!6
!4
!3
!5
!7
!9
@0
1.Remove two connectors from the rear of the needle bar case.
2.Loosen four screws q, and remove the head cover w, and loosen two screws e and remove the head cover Rr.
(Note) Because the heads No.1 and No.4 have the head covers R and L respectively, remove both the the covers when greasing.
3.Loosen four bolts t, and remove the needle case y.
4.Loosen three screws u, and remove the presser foot guide plate i.
5.Loosen two bolts o, and remove the cap eaves guide !0.
6.Loosen three bolts !1, and remove the wiper solenoid assembly !2.
7.Remove screws !3(7 pcs) indicated by arrows. Apply grease to the tapped holes with the syringe provided and tighten the screws again.
Also apply grease to presser bar spring !4, the end of presser bar guide bracket !5, presser bar metals U !6and D !7, and jump rotary shaft !8.
*After greasing, assemble in the reverse order.
(Note) • When reattaching the head cover w after its removal, move the needle bar case to the needle bar 6 position.
•When assembling the needle bar case y, place it on the machine and turn the change pulley @0behind the cover !9at right.
Check that it is engaged, and then tighten the bolts.
•When attaching the presser foot guide plate i, move the presser foot up and down by the retracting lever to check that is it not distorted.
For more information, refer to the illustra- tion on page 227.
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