Setting The Upper Stop Position Of The Needle Bar - JUKI MF-7900 Instruction Manual

IX. SETTING THE UPPER STOP POSITION OF THE NEEDLE BAR
❸ ❹
❸ ❹
❷
❸ ❹
Ⓐ
❺
❻
Ⓑ
❺
❻
❶
Ⓑ
❺ ❻
– 10 –
1) Simultaneously pressing
❹
and
power switch.
2) is displayed (
tor and the mode is changed over to
the adjustment mode.
3) Give the pulley of the machine head
a turn by hand. Then, the main shaft
reference signal is detected. The
degree of an angle given by the main
shaft reference signal is indicated on
display section Ⓑ with a blip.
(The value is the reference value.)
4) In this state, give the pulley of the machine head
another turn by hand to align marker line ❶ on the
hand pulley with recess ❷ in the frame as shown
in the figure.
The direction of rotation is clockwise. If the
pulley is turned counterclockwise, the degree
of the aforementioned angle can differ by
approximately two degrees.
5) Press
(The value is the reference value.)
Take a note of the numeric value
shown on display section Ⓑ since it is
used for
ING PREVENTION PARAMETER"
p.12".
switch
❺
switch , turn ON the
Ⓐ
) in the indica-
❻
switch .
"X. SETTING THE RAVEL-