Threading The Machine Head - JUKI LH-3500A series Instruction Manual

4-12. Threading the machine head

[S type and G type] LH-3528A, 3528A-7, 3568A and 3568A-7
WARNING :
To protect against possible personal injury due to abrupt start of the machine, be sure to start the
following work after turning the power off and ascertaining that the motor is at rest.
!0
Left-hand
needle thread
Right-hand
needle thread
!0 - K
!1 - L
!2 - M
!3 - N
!4
!5
Fig. 1
Thread the machine head following the order as illustrated in the figure.
Pass the left-hand needle thread, toward the machne head, n the order of 1 to !5 . Pass the rght-hand
needle thread n the order of A to P .
1. Carefully check how to thread the needle clamp thread guides (!4 , O ).
･ (S type) See Fig 1 for polyester spun thread, Fig. 2 for thick filament thread of yarn count #50
or lower and around #50, or Fig 3 for thin filament thread of yarn count #50 or higher.
･ (G type) See Fig. 4 for thick thread of yarn count #5 to #30.
2. When using filament thread for sewing, use the felt thread guides supplied with the sewing ma-
chine. If the needle thread loosens or breaks, take some preventive measure such as winding
the thread on the needle (S type).
3. To produce chain-off thread, the felt thread guide (in Fig. 2 or Fig. 3) should be used for the S
type, or the needle thread presser (in Fig. 5) should be used for the G type.
4. For the LH-3528A-7 or LH-3568A-7, thread the intermediate thread guide as follows:
･ For polyester spun thread, see Fig. 6. For filament thread, see Fig. 7.
A
1
K
2
O
P
S type
Fig. 3
Fig. 2
Fig. 6
B
8 - H
* Needle thread take-up eyelet is not
usually used.
8 mm
G type
Fig. 4
– 20 –
Fig. 7
Intermediate
thread guide
4
3
5
6
D
E
F
7 - G
For filament
thread, thread the
machine head as
illustrated.
(The needle
thread take-up
eyelet should be
used for filament
thread.)
Fig. 5
C