|Remove 4 screws at left and right the cover.|
|Take off the cover|
|Take off 4 air tubes connect to control box and clamp (sewing frame)|
|You can see clearly the control box after taking off the air tube|
|Remove the 4 screws, you can take off clamp (sewing frame)|
|Note: 2 of these 4 screws are longer|
|Put the new clamp (sewing frame)|
|Note: put 2 longer screws at right side (with red arrow), and 2 shorter screws at left side)|
Before tighten the 4 screws, make sure the new clamp is vertical to slide track.
How to check? Move the clamp right and left, the space between needle and the aluminium bar must be equal.
|Insert 4 air tubes from the new clamp (sewing frame)|
|Please note the number on air tube and control box, must match up!!|