4
Base
To remove:
(1) Loosen and remove the three set screws (A), (B), (C) and then two set screws (D).
(2) Detach the base while tilting it.
To attach:
(3) Insert the base while tilting it, and tighten the two set screws (D) and then three set screws
(A), (B) and (C).
Bed cover (unit)
To remove:
(1) Loosen and remove the two set screws (E).
To attach:
(2) Move the drop lever to the left and tighten the two set screws (E).
(Turn the balance wheel and confirm that the feed dog moves up and down.)