Standard Adjustment; Height And Inclination Of The Feed Dog; Adjusting The Feed Timing - JUKI LZ-2290 Series Manual Manual

3. STANDARD ADJUSTMENT

(1) Height and inclination of the feed dog

Standard height : 1.2 mm : LZ-2290SS, LZ-229DS
: 1.4 mm : LZ-2290SU, LZ-2290DU
Inclination : The feed dog should be almost leveled
when the top surface of the ascending feed
dog is flush with the top surface of the
throat plate.
1.2 mm
Leveled

(2) Adjusting the feed timing

Marker line
engraved on
thread take-
up
Standard Adjustment
Operator's
side
Leveled
2
3
Hole for
screwdriver
Standard Adjustment
Timing mark G
engraved on
face plate
Timing mark F
engraved on
face plate
Reference for the height and inclination of the
feed dog
™ When the respective marker dots are
leveled, the height is 1.2 mm and the
inclination is leveled.
Throat plate
Position of marker dot
(Inclination)
1
A
Feed
Feed rocker
rocker rod
cam
Alignment of
timing marks
6
1.2 mm
Feed dog
Position of marker dot
(Height)
B
Top suface of
throat plate
Comes down.