Adjusting The Speed Controller And Air Pressure; Adjusting The Presser Foot Lift - KANSAI SPECIAL DX Series Instruction Manual

【7】ADJUSTING THE SPEED CONTROLLER AND AIR PRESSURE
■ S peed controller F controls the speed when the thread
trimming knife carriers protrude.
Speed controller G controls the speed when the thread
trimming knife carriers retract. If the screw for F is too
loosened, the carriers will protrude too fast and then the
position of the lower knives will become unstable, causing
cutting error.
carriers will retract too fast and then the looper threads
may not be held properly.
factory-set (see the illustration in [6] ).
< Note >
Set the regulator at 4~5kgs/cm
turn the adjusting knob clockwise. Too fast speed will give a
shock to the knife carriers. Then the threads will be cut
before they are cut by the knives or the threads will not be
held properly. It may cause trouble.
【8】ADJUSTING THE PRESSER FOOT LIFT
■ T he foot lift should be 7mm above the top surface of the
needle plate. To make this adjustment, loosen screw D
for crank lever C and then set the clearance between slot
A on the presser bar clamp connection plate and screw B
at 0.5~1mm.
■ W hen the air cylinder on the pneumatic presser foot lift
gets actuated, the presser foot lift should be 7mm above
the top surface of the needle plate.
To make this adjustment, position stopper E so that lever
G cannot be lowered.
positioned, secure stopper E with nut F.
If the screw for G is too loosened, the
The speed controllers are
. To decrease the pressure,
2
After stopper E has been
6