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WARNING :

Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of the sewing machine.

Perform the maintenance below every day for longer use of your machine.

(1) Conrmation of the amount of oil in the hook oil tank.

Conrm that the top of oil amount indicating rod

is between the upper engraved marker line and the lower engraved marker line of the oil amount indicating

window. (For the details, refer to “4. LUBRICATION”.)

(2) Cleaning

1) Remove needle

, presser foot

and throat plate

2) Remove dust adhered to feed dog

and thread trimmer unit

with a soft brush or cloth.

3) Tilt the machine head and wipe out the dirt of bobbin case and the like with soft cloth, and conrm that there is no scratch. Wipe out with the cloth dust and

hook oil drained in the under cover near the hook.

29. CARE

WARNING :

Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of the sewing machine.

In automatic reverse stitching, in case the forward and the reverse stitches do not match, a rough correction can be made by adjusting the feed adjustment

spring hook

※ To make a ne correction, the correction of timing of the reverse feed stitching solenoid is necessary by adjusting Function Setting Nos. 51, 52

and 53. Refer to the Instruction Manual for the control box (SC-920) for details of adjustment procedure.

1) In case the stitch does not match the target as shown in

, loosen feed adjustment spring hook xing screw

, make

slide in A direction, and x using

the screws

2) In case the stitch does not match the target as shown in

, loosen feed adjustment spring hook xing screw

, make

slide in B direction, and x using