53
You have to do the adjustment for the clamps. Slightly loosen the right-side
bottom lock nuts, then gradually tighten the right bottom screws of the clamps
until there is no gap between the spine and the nipping plate surface when you
close the clamps. Make some books to see if the spine has been improved on
right side.
(E) Left-end nail head
LL = RL, RR = LR
You have to do the adjustment for the clamps. Slightly loosen the left-side upper
lock nuts, then gradually tighten the left upper screws of the clamps until there is
no gap between the spine and the nipping plate surface when you close the
clamps. Make some books to see if the spine has been improved on left side.