Mitsubishi Electric LY2-3300-B0B Instruction Manual Download Page 4

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Lubrication

● Pour oil up to the arrow position before starting

operation.
　　　　…About 3 cc
　　　　…5, 6 drops
　　　　…1, 2 drops
For oil, use “Pulley SF oil” specified by
Mitsubishi.

※ Refer
Pulley SF oil ：Specific gravity (15℃ ) = 0.86 (g/cm

)

：Viscosity (40℃ ) = 18.0 (mm

/s)

● When a new sewing machine is used for the

first time, or sewing machine left out of use for
considerably long time is used again, replenish a
suitable amount of oil to the portions indicated
by arrows in the below figure.

Adjustment of lubrication to the

rotating hook

Adjust the lubrication amount of the rotating hook
by turning the screw Ⓐ.

USAGE PRECAUTION

Ⓐ

Screw Ⓐ

Decrease

Increase

Line

Hole for supply

Supply the oil to the tank of the bed

Fill oil up to the line when the oil would come
bottom level.

At ① and ②, please lubricate

the oil braid under the rubber plug.

②

①

— 1 —

Summary of Contents for LY2-3300-B0B

Page 1: ...A180E352P03 INSTRUCTION MANUAL SINGLE NEEDLE LOCKSTITCH UPPER AND LOWER FEED INDUSTRIAL SEWING MACHINE LY2 3300 B0B MODEL ...

Page 2: ...ion 1 If the machine s oil pan has an oil sump never operate the machine without filling oil in it 2 If the machine is lubricated by a drop oiler never operate the machine without lubricating 3 When a new sewing machine is operated verify the rotational direction of the pulley with the power on The pulley should rotate counterclockwise when viewed from the pulley 4 Verify voltage and single or thr...

Page 3: ...Winding of the bobbin thread 3 3 Threading of the needle thread 4 4 Adjustment of feed stitch length and backstitch 4 5 Balance of threads tension 4 6 Adjustment of the needle thread tension 4 7 Adjustment of the bobbin thread tension 5 8 Adjustment of the presser foot pressure 5 9 Adjustment of the feed dog height 5 Adjustment of the feed foot and the presser foot 6 A To handle thread at the star...

Page 4: ...ne left out of use for considerably long time is used again replenish a suitable amount of oil to the portions indicated by arrows in the below figure 2 Adjustment of lubrication to the rotating hook Adjust the lubrication amount of the rotating hook by turning the screw Ⓐ USAGE PRECAUTION Ⓐ Screw Ⓐ Decrease Increase Line Hole for supply Supply the oil to the tank of the bed Fill oil up to the lin...

Page 5: ...p foot away from the pedal 2 It should be noted that the brake may not work when the power is interrupted or power failure occurs during sewing machine operation 3 Since dust in the control box might cause malfunction or control troubles be sure to keep the control box cover close during operation 4 Do not apply a multimeter to the control circuit for checking otherwise voltage of multimeter might...

Page 6: ...pacity Winding amount adjustment screw Thread guide 1 Installation of the needle Note Before installing the needles be sure to turn off the power Insert the needle upto the bottom of needle clamp and tighten the screw keeping the long groove side facing to the left Insufficient insertion Needle distorted Gap Long groove left side Timing mark for DB 1 Timing mark for DP 17 Needle bar Note If thread...

Page 7: ... take up lever located at the upper most position pass the needle thread in the order shown in the following figure 4 Adjustment of feed stitch length and backstitch Adjustment of feed stitch length Adjust feed length by turning the feed length setting dial while depressing the reverse sewing lever Backstitch Direction of stitching can be reversed by depressing the reverse sewing lever A B C Balan...

Page 8: ...the pulley and stop it at the position where the feed lifting rock shaft crank right swings to the innermost position 2 Loosen the screw Ⓐ Note Be careful not to move the feed lifting rock shaft crank right in the lateral direction 3 Adjust the feed dog height by swinging the feed lifting rock shaft crank left and moving the feed bar 4 After adjusting fully tighten the screw Ⓐ The feed dog height ...

Page 9: ...ment 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 The up and down movement will increase Max 5 mm Downward The 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 leng...

Page 10: ...Slowly start to take up a few stitches at the beginning so as to prevent the needle thread from being off out of the needle 2 When the needle thread is held by the presser foot The end of the needle thread remains on the surface of the cloth To stitch in this way it is preferable to pull out the sewn fabric to the other side of the presser foot at the end of sewing Needle thread Needle thread Clot...

Page 11: ... 0 Presser foot stroke mm Hand 6 0 Knee 13 0 Needle DP 17 22 DB 1 22 Hook vertical rotating hook Large Lubrication system Manual lubrication The hook is supplied with oil automatically from the tank Bed dimensions mm 475 178 Note The bobbin should be of high quality free from deformation Some materials and or sewing conditions may require specifications other than those listed above These specific...

Page 12: ...Printed in Japan ...

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