Adjusting The Amount Of Oil In The Hook; Attaching The Needles - JUKI LH-4128 Instruction Manual

4-3. Adjusting the amount of oil in the hook

WARNING :
Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of
the sewing machine.
1
Adjust the amount ol usng adjustng screw 1 . Turn screw 1 clockwse to ncrease the amount of ol
in the hook or counterclockwise to decrease it. Measure the amount of oil in five seconds. When the
amount of ol s excessvely decreased, break-down wll be caused. So, be careful.

4-4. Attaching the needles

WARNING :
Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of
the sewing machine.
LH-4168-7, 4188-7
2
1
LH-4128, 4128-7
2
1
1
2
1
3
2
3
Oil amount
decreases
Swtch "off" the motor.
Use DPx5 needles.
) Turn the handwheel untl the needle bar has
come up to the hghest pont of ts stroke.
2) Loosen needle clamp screws 2 and pck up
two needles 1 n the way that ther grooves
3 are facng outwards.
3) Insert the needles nto the needle clamp as
far as they wll go.
4) Tghten needle clamp screws 2 firmly.
– 3 –
Oil splashes
Oil amount
increases