JUKI SC-905 - Standard Adjustment; Height and Inclination of the Feed Dog; Adjusting the Feed Timing

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3. STANDARD ADJUSTMENT
(1) Height and inclination of the feed dog
Standard Adjustment
(2) Adjusting the feed timing
Standard Adjustment
A B
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.
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.
Timing mark F
engraved on
face plate
Feed rocker
cam
Feed
rocker rod
Alignment of
timing marks
Timing mark G
engraved on
face plate
Marker line
engraved on
thread take-
up
1.2 mm
Throat plate
Feed dog
Hole for
screwdriver
Top suface of
throat plate
Comes down.
1.2 mm
LeveledLeveled
Operator’s
side
Position of marker dot
(Inclination)
Position of marker dot
(Height)
1
2
3