Brother International S-7220B Instruction Manual - English - Page 59

13. STANDARD ADJUSTMENTS 13-7. Adjusting the feed dog angle Raise the front Lower the front 3768M The standard angle is for the feed dog (1) to be parallel to the needle plate when the machine pulley is turned forward to raise the feed dog (1) from its lowest position until it is flush with the top of the needle plate. 1. Turn the machine pulley forward to raise the feed dog (1) from its lowest position until it is flush with the top of the needle plate, and stop turning the pulley at that point. 2. Tilt back the machine head. 3. Loosen the two set screws (4). 4. Turn the shaft (2) in the direction of the arrow within a range of 90° with respect to the standard position. (Fig. [C]) ・In order to prevent puckering, lower the front of the feed dog (1). ・In order to prevent the material from slipping, raise the front of the feed dog (1). 5. Securely tighten the set screws (4). Parallel Raise the front Needle plate * If you would like to tilt the feed dog (1) further, turn the feed lifting rock bracket stud (5) while carrying out the above adjustment. (Fig. [D]) (Refer to "13-6. Adjusting the feed dog height" on the previous page for details of this operation.) * The height of the feed dog (1) will change after the angle has been adjusted, so it will be necessary to re-adjust the height of the feed dog (1). Back is lowered Lower the front 3769M Raise the front Back is raised Lower the front 3770M S-7220B 52