10
Before Operating
Adjust Brush Down Pressure
Improper downward pressure can decrease brush life up to
95% (depending on the incorrect amount of pressure).
A brush sweeps with the tips of its bristles. When too much
down pressure is applied, the brush is no longer using it’s
tips; the brush is now working with the sides of the bristles.
This limits the flicking action of the bristles and limits it’s
sweeping effectiveness.
To check for correct downward pressure, operate brush on
the ground, rotating at normal operating speed with traction
unit remaining stationary. Stop operation, raise brush and
measure width of swept path. A properly adjusted brush
will have a sweeping path (flat spot on ground) width of 2”
– 4”. (Fig. 4)
If ground speed is too fast, debris will pile up in front of
brush causing brush to bulldoze instead of sweep. This can
damage the bristles and the drive line.
Adjust castor height for proper brush ground pressure. The
castor wheel height is adjustable from 4 to 7 1/2 inches in
1/2 inch increments by adding or removing an equal
amount of spacers from each castor wheel. To adjust castor
height:
1.
Start traction unit and raise broom by shortening chain
or positioning on ground rise. Stop engine after broom
is raised.
2.
Remove cap securing castor spindle to frame bracket
and lower castor.
3.
To remove spacers from bottom, lift lowest spacer .25
inch and rotate until the opening in the spacer aligns
with the slot on the castor spindle and slides off. To add
spacers to the bottom, lift lowest spacer until slot on
castor spindle is exposed and a spacer can be slid onto
castor spindle.
4.
Move desired amount of spacers to top or bottom of
bracket. Make sure spacers are equal on both castor
wheels and a thrust washer is positioned on each side of
frame bracket.
5.
Reinstall cap, lower broom and correct broom chain
length.
Broom Lift Chain Tension
With the castors adjusted so there is a 2” – 4” brush flat
spot on ground (Fig. 4) adjust lift chain so, in transport lift
position, the brush is raised approximately 1–2” off ground
with castors still on ground. Chain should not lift castors
off of ground (Fig. 5).
Operating Position
Figure 4
Transport Position
Figure 5
Check Hydraulic System
The hydraulic system is designed to operate on Mobil 424
hydraulic oil. The machine has a 10 gallon reservoir; verify
that the reservoir is filled before initial operation and daily
thereafter.
To check hydraulic oil:
1.
Position machine on a level surface.
2.
View oil level in site glass.
3.
Add oil until oil shows 1/4 way up on site glass.
Important
To prevent system contamination, clean top
of hydraulic oil containers before puncturing seal. Assure
pour spout and funnel are clean.
Summary of Contents for 30743
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