3.3
Belt Cover and
Bobbin Winder
Installation
Caution
For safety, the belt cover should be installed.
The left and right parts of the bobbin winder should be parallel to the plate belt slot on the machine table.
Drill four holes ‘A’, ‘B’, ‘C’ and ‘D’, in the machine table for screws (Figure 6).
Insert support ‘1’ in the threaded hole in the housing.
Install the front belt cover ‘3’ and get the hand wheel in the middle of the cover hole.
Install the back belt cover ‘2’ at holes ‘C’, ‘D’.
Fix the front belt cover ‘3’ on the support with screws ‘4’, ‘5’ and
washers ‘6’. The tightening torque for the screw ‘4’ is about 30 kgf×cm, and for the screw ‘5’ is about 25 kgf×cm.
Move the back belt cover ‘2’ back- ward, until its rubber touches the front belt cover ‘3’, move it again for 0.5~1.0 mm and fix it with screws and washers.
Fix bobbin winder ‘7’ at hole A’, ‘B’ with screws and washers.
Figure 6
High Speed Straight Lockstitch Sewing Machine Instruction Manual and Parts List 7