MAINTENANCE
6500 330270 (9--01)
84
BRUSHES
MAIN BRUSH
The main brush is cylindrical and spans the width
of the machine, sweeping debris into the hopper.
Check the brush daily for wear or damage.
Remove any string or wire tangled on the main
brush, main brush drive hub, or main brush idler
hub.
Check the main brush pattern daily. The pattern
should be 50 to 65 mm (2.0 to 2.5 in) wide with
the main brush in the
Down
position.
(For machines below serial number 020000)
Adjust the main brush pattern by turning the main
brush pressure knob located next to the brush
position lever.
Rotate the main brush end-for-end every 50 hours
of operation for maximum brush life and best
sweeping performance.
Replace the main brush when the remaining
bristles measure 30 mm (1.25 in) in length.
(For machines serial number 020000 and
above)
Adjust the main brush pattern by setting the main
brush adjustment plate.
Note the length of the main brush bristles with the
color band on the brush idler plate before moving
the main brush adjustment knob.
Align the pointer from the plate located under the
knob, to match the same color band as the brush
idler plate.
Rotate the main brush end-for-end every 50 hours
of operation for maximum brush life and best
sweeping performance.
Replace the main brush when the remaining
bristles measure 50 mm (2.0 in) in length.
