MAINTENANCE
186E MM160 (6–94)
3Ć26
6. Move the machine from the main brush
polish mark.
7. Stop the motor.
8. Observe the width of the polish mark. The
proper polish width is 1.5 in (40 mm).
A
B
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MAIN BRUSH PATTERN
A. Main Brush Pattern
B. Polish Width
To reduce the polish width, turn the main brush lift
handle to the right.
To widen the polish width, turn the main brush lift
handle to the left.
If any adjustments are made, recheck the main
brush pattern before continuing sweeping with the
machine.
SIDE BRUSH
The side brush deflects debris into the path of the
main brush. The side brush should be inspected
daily for wear or damage.
Remove any string or wire found tangled on the
side brush, side brush drive hub, or shaft.
The side brush should be replaced when the
remaining bristle length measures 1 in (25 mm) in
length.
The side brush pattern should be checked after
every 50 hours of operation. The side brush is
properly adjusted when, with the side brush arm
in the raised position, there is approximately 1 in
(25 mm) of space between the floor and the side
brush bristles.
Side brush adjustments are made by mounting
the side brush in a different one of the five
mounting holes in the side brush drive shaft.
TO REMOVE SIDE BRUSH
1. Turn off the machine and set the machine
parking brake.
FOR SAFETY: Before Leaving Or Servicing
Machine; Stop On Level Surface, Set Parking
Brake, And Turn Off Machine.
2. Pull the side brush arm up into the raised
position.
3. Remove the side brush retaining bolt or
clevis pin.
A
B
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SIDE BRUSH
A. Side Brush
B. Retaining Bolt
4. Slide the side brush off its drive shaft.
