Tennant 186, Operator'S Manual

Page: 64 / 88

MAINTENANCE
186 MM159 (6–94)
3Ć28
6. Move the machine from the main brush
polish mark.
7. Stop the engine.
8. Observe the width of the polish mark. The
proper polish width is 1.5 in (40 mm).
A
B
00582
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.
The side brush is adjusted by changing the
mounting location on the drive shaft.
TO REMOVE SIDE BRUSH
1. Stop the engine 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
C
03144
SIDE BRUSH
A. Side Brush
B. Retaining Bolt
C. Drive Shaft
4. Slide the side brush off its drive shaft.