SS300 Service Information (3-2017)
87
SERVICE
7. Release parking brake (if equipped) and pull
the machine away from the pattern test site
and inspect the brush pattern. The pattern
shown below has a severe taper and requires
adjustment to achieve two parallel rectangles.
8. To adjust the brush pattern taper, lower the scrub
head to the floor.
9. Loosen (do not remove) the RH side linkage bolt.
10. Turn the adjustment screw counter-clockwise
to increase down pressure on the RH side or
clockwise to decrease down pressure on the RH
side of the scrub brushes.
11. Re-apply chalk and repeat steps 4-10 until the
desired brush pattern is achieved and then
retighten the linkage bolt with the
HEAD IN THE
LOWERED POSITION.
12. The taper adjustment is complete. If the pattern
is uneven front-to-rear, the brush pattern can be
further adjusted using the slotted top bolt. Loosen
the top bolt just enough so the scrub head
bracket moves freely and the scrub head settles
in it’s natural position on the level floor.
