HappyJapan HCU2, Instruction Book

Page: 47 / 393

-CU -46
THREADING THE MACHINE
4_7 TB01
4-7
CAUTION: To
prevent accidents.
Please be careful of
the sharp point of the
needles when thread-
ing upper threads
through the needle.
DIGITAL THREAD TENSION
STANDARD THREAD TENSION
4. Upper rectifier
5. Guide pin
6. Digital thread tension
7. Guide pin
8. Thread break detecting
rotary
Wind upper threads one
time around rotary ten-
sion disc clock-wise.
9. Thread guide
10. Lower rectifier
11. Thread adjusting
spring
12. Take-up lever
13.Thread clip
（ Dealer-installed option)
The selected clip of
needle is open and
the others are closed.
Pull the bottom of the
clip toward you as
shown.
Apply thread to the
clip from the right as
shown.
12
4
5
8
10
11
13
6
7
14
15
16
4. Upper rectifier
5. Thread tension
6. Guide pin
7. Thread break detecting
rotary
Wind upper threads one
time around rotary ten-
sion disc clock-wise.
8. Thread guide
9. Lower rectifier
10. Thread adjusting
spring
11. Take-up lever
12. Thread guide
Apply thread to the
thread
guide from the
right as shown.
13. Needle bar thread
guide
14. Needle
Thread from front side
of needle.
Pull upper threads
slowly and see that
the rotary tension
disc moves smoothly
by pulling the thread
downward as much as
possible.
15. Pressure foot
When checking thread,
pull upper threads from
needle and check if
detecting roller moves
smoothly.
4
5
9
11
10
12
6
7
13
14
15
9
8
14. Needle bar thread
guide
15. Needle
Thread from front
side of needle.
Pull upper threads
slowly and see that
the rotary tension
disc moves smoothly
by pulling the thread
downward as much
as possible.
16. Pressure foot
When checking
thread, pull upper
threads from needle
and check if detecting
roller moves smoothly.
(Dealer-installed option)