Service manual

S-4000 CAED Omron
1-27
Revised 10/2009
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E - MACHINE ADJUSTMENTS
correct
incorrect
2. Setting up the width of the bite
Tilt the machine head from the support pin back into the sewing position.
The width of the bite is set up from the rear side of the machine head
from the space below the motor. Hence the head cover needs to be
dismantled.
The machine S-4000 is assembled with the throatplate
, having the bite
range from 1.5 mm (1/16“) to 2.3 mm (3/31“). The width of the bite is
adjusted as follows:
a) loosen the adjusting screw
b) lift up the drawbar to get a wider bite
c) bring the drawbar to get a narrower bite
d) tighten the adjusting screw
3. Setting up the bite in the throatplate
a) the machine must be in the home position – loosen the
tightening screw on the bite lever
b) turn the hand wheel to lower the needle bar into the bottom
dead centre and move it towards the right side throatplate
groove
c) tighten the tightening screw
d) turn the hand wheel to check that the needle Ó has same
play on both sides of the throatplate groove.
NOTE: This is just a reference adjustment.
For final adjustment loosen the eccentric screw and turn slowly the eccentric screw
Position the needle in such way that the play is same on both sides of the throatpalte groove.
Tighten the eccentric screw .