Tennant 215, Operator And Parts Manual

Page: 59 / 68

MAINTENANCE
3-35
215 MM157 (4--90)
The pattern should be of equal width across the
length of the pattern. If the main brush pattern is
tapered, wider on one side by 0.50 in (15 mm) or
more than the other side, perform the following
leveling procedure:
A. Park the sweeper on a level surface,
raise the main brush, stop the engine,
and set the parking brake.
FOR SAFETY: Before Leaving Or
Servicing Machine; Stop On Level
Surface, Set Parking Brake, And Turn
Off Machine.
B. Open the left side access door.
C. Remove the main brush.
D. Reinstall the idler arm. Let the front of
the arm drop to take up the slack in
the holes. Retighten the screws.
E. Place a block under the brush idler
plug and release the brush lift handle.
F. Remove the right side access door.
G. Remove the brush drive belt from the
spring idler sheave and allow the idler
arm to hang down.
H. Loosen the two Hex head screws and
move the drive assembly up or down to
center it the same distance from the
floor as the idler arm to obtain an even
pattern. Retighten the screws.
I. Replace the drive belt and remove the
block from under the brush idler arm.
J. Reinstall the main brush.
K. Recheck the main brush pattern to see
if the main brush is level.
L. Replace the right side access door and
close the left side access door.
The pattern should be 2 to 2.5 in (50 to 55 mm)
wide. If the main brush pattern is too narrow, turn
the main brush height adjustment knob
clockwise. If the main brush pattern is too wide,
turn the main brush height adjustment knob
counterclockwise. Recheck the pattern width
after making any adjustments.
SIDE BRUSH
The side brush sweeps debris from curbs or
gutters into the path of the main brush. It should
be inspected daily for wear or damage. Remove
any string or wire found tangled on the side brush
or side brush drive hub.
The side brush pattern should be checked daily.
Between one-third and one-half of the side brush
bristles should contact the floor when the brush is
in motion. The side brush pattern adjustment is
made by removing the side brush attaching
hardware, repositioning the side brush assembly,
and replacing the hardware.
The side brush should be replaced when the
remaining brush bristle measures 2.5 in (65 mm)
in length.
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. Place the side brush position lever in the
(Side Brush Up) position.
3. Remove the side brush retaining bolt from
the side brush hub and shaft.
B
A
C
01127
SIDE BRUSH
A. Side Brush
B. Retaining Bolt
C. Side Brush Drive Shaft
4. Slide the side brush off the side brush drive
shaft.