Adjustment Of The Feed Foot And The Presser Foot - Mitsubishi Electric LY2-3310-B1T Instruction Manual

HOW TO USE
: Adjustment of the feed foot
and the presser foot
1 . To change the balance of the alternating
movements between the feed foot and presser foot
( 1 ) For example, to increase the rise of the feed
foot, and decrease the rise of the presser foot.
①Turn the pulley until the presser foot is
slightly raised from the throat plate.
②Loosen the set screw Ⓐ (on the right side)
located on the feed lifting rock shaft crank (right).
③The built-in spring pulls down the presser
foot until it makes contact with the throat
plate. Then, tighten the set screw Ⓐ.
④This completes the adjustment, i.e., the
protrusion of the presser foot has been
decreased by a set distance. And, the
vertical motion of the feed foot has been
increased by that same distance.
( 2 ) As a contrary case ( 1 ), to decrease the rise of the
feed foot, and increase the rise of the presser foot.
First, turn the pulley until the feed foot is
slightly raised from the throat plate. Next,
loosen the screw Ⓐ. Finally, tighten the
screw Ⓐ again.
This decreases the rise of the feed foot.
2 . Adjustment of the movement height of the
presser foot and feed foot
Note: When sewing a thin fabric, the up and down
movement should be adjusted at minimum.
●To adjust, loosen the screw, and shift the
position of crank rod boss.
Upward → T he up and down movement
will increase. (Max. 5 mm)
Downward → T he up and down movement
will decrease. (Min. 2 mm)
3 . A gap between the feed foot and the presser foot
Note: At the condition the stitch length is at max., the
min. gap between the feed foot and the presser
foot is adjusted to be 5 mm as standard.
●Loosen the screw Ⓐ, then turn the feed
driving shaft, so that the gap Ⓑ can be
adjusted.
After adjusting, fully tighten the screw Ⓐ.
4 . Proper timing between the upper and lower feed
Note: Although the upper feed amount (feed foot)
adjust the lower feed amount (feed dog)
are adjusted by 1:1, please adjust the upper
feed amount increasingly or decreasingly,
according to the material to be sewn.
●To adjust, loosen the nut and shift the square
block up and down.
Upward → Feeding amount will decrease
Downward → Feeding amount will increase
Crank rod
Screw
Large
Small
Feed driving shaft crank (right)
Feed lifting rock
shaft crank (left)
Nut
— 8 —
Ⓐ
Feed lifting rock shaft crank (right)
Screw Ⓐ
Feed driving shaft
5 mm Ⓑ
Feed foot
Presser foot