White 445 - Threading Upper Thread; Twin Needle Threading

Threading Upper Thread
Raise presser foot lifter.
Raise take-up lever to the highest
position by turning handwheel
towards you
Thread following numbers (1-0).
Pass thread through guide ().
Lead thread either side of tension
disc ©.
Hook it to guide (3) from down to
upwards.
Thread take-up lever @.
Pass thread to guide 5) from right
to left, and guide © (left one)
then needle eye ©.
Leave end of thread of about 15
ст (6).
mm
= <=
Twin Needle Threading
Thread in the same way as
normal threading, except at
points ©, © and ©.
At point ©, pass threads sepa-
ratly to right and left of tension
disc.
At guide ®©, pass one of threads
to right guide and the other at
left guide
At point (D, thread from right
guide should be lead to right
needle eye, and from left guide
to left needle eye.
Leave ends of threads of about
15 cm (67).
n.b. When using zigzag width
control, set it between O and 2.5
To set control above 2.5 will
cause needle to break.