– 0 –
) Turn ON the power.
2) Press knee p
ad plate
7
and lft the presser
foot by 5 mm from the top surface of throat
plate.
3) Turn knee lfter detecton seat (asm.)
4
n the
direction of the arrow and fix it at the position
where LED of knee lfter detecton sensor
3
starts lghtng wth setscrew
!3
. At ths tme,
algn the edge of detecton seat (asm.)
4
wth that of knee lfter detecton sensor
3
.
When the edges of knee lifter
detection sensor
3
and knee
lifter detection seat (asm.)
4
are
not aligned, detection trouble will
be caused.
4) Confirm that LED goes out when knee pad
plate
7
s released.
It is adjusted so that the knee
lifting motion is detected when
presser foot is lifted by 5 mm.
When using it with the lift amount
of less than 5 mm, reduce the
standard adjustment value and
re-adjust according to step 3).
5) When the magnet of knee lfter detecton seat
(asm.)
4
comes near the detecton secton
(+ mark secton) of knee lfter detecton
sensor
3
, t detects that knee lftng has been
performed and LED lghts up.
3-8. Adjusting the knee lifter detection seat (asm.)
4
!3
7
3
4
3
3
To align
edges
Conditions : LED starts lighting at presser
foot lift of 5 mm.
LED
Detection section
Magnet LED
* For explanation, the figure above omits knee pad
plate and the like.