INSTALLING THE OIL RESERVOIRMOTOR PULLEY AND THE BELTCAUTIONS ON OPERATING THE MACHINELUBRICATION1. ADJUSTING THE OIL SUPPLY TO THE FACE PART2. THE OIL ADJUSTING PIN3. ADJUSTING THE OIL SUPPLY TO THE HOOK COMPONENTSTHREADING THE MACHINEPREPARATION OF THE BOBBIN THREADTHE THREAD TENSIONADJUSTING THE NEEDLE THREAD TENSIONTHREAD TAKE-UP SPRINGADJUSTING THE BOBBIN THREAD TENSIONPRESSER FOOT AND FEED DOGTHE STITCH LENGTHADJUSTING THE STITCH LENGTH (DDL-552 DDL-553)REVERSER SEWING (DDL-555 DDL-227)INSERTING THE NEEDLEINSTALLING AND REMOVING THE SEWING HOOKRELATION BETWEEN THE HOOK AND THE NEEDLEADJUSTING THE HEIGHT OF THE PRESSER BARADJUSTING THE AMOUNT OF THREAD TAKE-UPADJUSTING THE PRESSING PRESSURE OF THE FEED LEVER (DDL-555)