– 11 –
❶
❷
❷
❶
9.ATTACHINGTHENEEDLE
Switch "off" the motor.
Use135x17needles.
1) Turn the handwheel to bring the needle bar to
the highest position of its stroke.
2) Loosen needle clamp screw
❷
. Hold the needle
so that the long groove on needle
❶
faces direct-
lytotherightfortheLU-2810and-2810-7,and
so that the long groove on each the two needles
facesinwardfortheLU-2860and-2860-7.
3) Push needle
❶
deep into the needle clamp hole
until it will go no further.
4) Tighten needle clamp screw
❷
rmly.
Long groove
❶
❷
Whenreplacingtheneedle,checktheclear-
ance provided between the needle and the
bladepointofhook.(Referto"20.NEEDLE-
TO-HOOKRELATION"p.20 and "21.
ADJUSTINGTHE HOOK NEEDLEGUARD"
p.21.)
Ifthereis noclearance,the needleandthe
hook will be damaged.
LU-2810,LU-2810-7
LU-2860,LU-2860-7
WARNING :
Toprotect againstpossiblepersonalinjury due toabruptstartof themachine,besureto startthe
following work after turning the power off and ascertaining that the motor is at rest.
Long groove
LU-2860,LU-2860-7
1) Loosen nut
❷
and turn oil amount
adjustment screw
❸
to adjust the
amount of oil in the hook.
Turning the screw clockwise
A will
decrease the amount of oil in the hook
or counterclockwise B will increase it.
2) Theappropriateamountofoil,when
a sheet of paper is placed near the
peripheryofthehook,istosuchan
extentthatsplashesofoilfromthehook
appearinapproximatelyveseconds
asshowninthegureontheleft.
A sheet of
paper
Inthecase the oil quantity inthe
hookcannotbeadjustedtothe
properquantity, itshouldbead-
justedbylooseningnut
❹
and
turningoilquantityadjusting
screw
❺
. The oilquantityinthe
hook isincreasedbyturningthe
oil quantity adjusting screw coun-
terclockwiseC,orisdecreasedby
turning it clockwise D.
Also check to be sure that the oil
is fed to the hook at the sewing
speedof1,000sti/min.
❷
❸
B
A
❹
❺
C
D