3.4 Assemble and attach the sealing-film roll holder: -
a) Loosen the set of four screws at the rear of the sealer
by 3 complete turns,
b) then assemble the four
roll-holder components,
c) and whilst holding them together, position over the
screw heads, lower and then slide the assembly back
towards you.
d) The final step is to re-tighten the four screws.