JUKI LU-2810 - 23. POSITION OF THE COUNTER KNIFE AND ADJUSTMENT OF THE KNIFE PRESSURE; Adjusting the counter knife; Adjusting the knife pressure

–23–
23. POSITION OF THE COUNTER KNIFE AND ADJUSTMENT OF
THE KNIFE PRESSURE
1) Movethemovingknifebyhandtoitsforward
travelend.
• Adjusting the counter knife
2) Loosencounterknifebasesetscrews
❶
.Ad-
justthepositionofthecounterknifesothattop
endofthecounterknifesothatitisspaced1.2
to1.5mmfromtheendfaceofthethroatplate
intermsofthelateraldirection,andsothatitis
pressedagainstthesteppedsection(surfaceon
themovingknifeshaftside)ofhookdrivingshaft
saddleintermsofthelongitudinaldirection.
Then,tightensetscrews
❶
.
• Adjusting the knife pressure
3) Loosensetscrews
❷
inthemovingknife.
 Turnthehandwheeltomovethemovingknife
andadjusttheknifepressure.
 Asthestandardadjustment,theknifepressure
isappliedfromthetimewhenthedistancefrom
thetipofthemovingknifetothetipofthecount-
erknifebecomes6to7mmfortheLU-2810-7,
and8to9mmfortheLU-2860-7.
Adjust the knife pressure in the state that
the clamp spring does not come in contact
with the moving knife (the clamp pressure
is not developed).
Be sure to carefully prevent from getting
injured by the moving knife, counter knife,
blade point of the hook, etc.
Knife pressure
starts to be
developed
LU-2810-7: 6 to 7 mm
LU-2860-7: 8 to 9 mm
WARNING :
To protect against possible personal injury due to abrupt start of the machine, be sure to start the
following work after turning the power off and ascertaining that the motor is at rest.
Strike
1.2 to 1.5 mm
❷
❶
Strike