6.1 procedure for cover closing
(A) Tighten adjust bolts till spacers have been locked before lowering the cover.
(B) Loosen chain block and lower the filter cover till the adjust bolts touch to the filter body. Then, loosen the adjust bolts till the cover plate has touched to the flange of the head plate enough.
(C) After the cover has been set on the body in proper position, tighten flange pushing bolts.
(D) Tighten flange bolts on the head plate from center of the cover to the both ends alternately.
(E) Tighten flange bolta on the longitudinal flange of the cover in the same manner as (D).