- Remove the upper left cover. (Upper Left Cover)
- Lift up the machine rear side of the middle left cover (a) to release three hooks (b).
- Slide the middle left cover (a) toward the machine rear side to release two hooks (c).
- Detach the middle left cover (a).
When reattaching the middle left cover (a), insert the lower rib into the lower left cover (b). Slide it toward the machine front side to fasten three hooks (c) and four hooks (d), then lower the machine rear side of it to fasten three hooks (e) at the machine rear side.