REPLACE/REPAIR CROWN ADJUSTMENT ASSEMBLY - Continued.
ADJUST - Continued.
ADJUST MAIN SCREED TRAILING EDGE FOR
Disconnect and remove connecting link (20)
from roller chain (19).
Position straightedge (26) on bottom trailing
edge of main screed (27). Visually check for
positive or negative crown (bowing) at center of
main screed trailing edge.
If rear sprocket wheel assembly is not
easily moved, it may be necessary to
adjust the front sprocket assembly.
Using crown adjustment wrench (13), turn rear
sprocket wheel assembly (10) up to eliminate a
negative crown and down to eliminate a positive
crown along trailing edge of main screed. When
adjusted for zero crown, trailing edge of main
screed will be flat with straightedge within 0.06
in. (1,5 mm).
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