Tennant EC-H2O T12, Service Information Manual, Page: 45 / 178

T12 Service Information 9009917 (12-12)
3-21
MAINTENANCE
16. Observe the brush patterns. If the brush
pattern is the same width across the entire
length of each brush and both brushes are the
same width, no adjustment is necessary.
10355
17. If the brush patterns are tapered, see
ADJUSTING THE CYLINDRICAL BRUSH
TAPER section of this manual.
10652
18. The brush patterns should be 25 to 38 mm
(1 to 1.5 in) wide with the brushes in the
lowered position and both patterns should be
the same width. If the width of the brushes is
not the same, see ADJUSTING THE
CYLINDRICAL BRUSH WIDTH section of this
manual.
10653
19. Turn the key to the off position to return to
normal operation.
ADJUSTING CYLINDRICAL BRUSH TAPER
FOR SAFETY: Before leaving or servicing
machine, stop on level surface and turn off
machine.
1. Open the side squeegee support door.
2. Remove the idler door and loosen the idler
shaft. The shaft is a concentric cam.
3. Raise or lower the end of the brush using the
shaft adjustment as necessary to straighten the
brush pattern.
4. Retighten the mounting screw on the idler
door.
5. Close the side squeegee support door.
6. Recheck the pattern. Readjust if necessary.
7. Repeat procedure for the other brush located
on other side of the scrub head.