User Guide
MAINTENANCE 
SCX364 86037150 1/17/07 
4-8 
3. SCRUB BRUSHES   
There are four different types of brushes available to 
cover applications from cleaning heavily soiled floors 
to polishing. A pad driver is also available to take 
advantage of the many cleaning pads on the market. 
Please refer to the following to assist in selecting the 
proper brush or pad for the work at hand. 
UNCOATED FLOORS 
Aggressive Grit is a nylon fiber impregnated with 
silicone carbide grit. It grinds away stain, soil, and 
removes surface material. 
Mild Grit is a less aggressive silicone carbide grit 
suitable for cleaning medium soil conditions. 
Advantages are faster ground speed than nylon 
bristles on light solid applications. 
Polypropylene is a general-purpose scrub brush 
with stiff bristles. Polypropylene works well for 
maintaining concrete, wood and tile floors. 
FINISHED FLOORS 
Nylon bristles are used in a variety of applications 
on coated or uncoated surfaces. 
White Pads (Polishing) are used for dry polishing to 
achieve a high-gloss appearance, or surface 
washing on highly polished or burnished floors. 
Red Pads (Buffing) are used for light-duty 
scrubbing. When used with a mild detergent they 
will provide surface cleaning without removing the 
finish. 
Blue Pads (Scrubbing) are used for heavy-duty 
scrubbing and light stripping. The blue pads remove 
less finish than brown stripping pads, yet will remove 
black marks, stains and dirt. 
Black Pads (Stripping) are used for easy and 
complete removal of old floor waxes/finishes. They 
will quickly remove ground in dirt, black heel marks, 
and spills. When used with the proper stripper, this 
pad leaves the floor clean and ready for finishing. 
The scrub brushes should be checked before each 
days work for wire, string, wear and damage. 
REPLACING OR INSTALLING SCRUB 
BRUSHES 
1.  With the scrub deck up, turn “OFF” the machine. 
FOR SAFETY: Before leaving or servicing the 
machine; stop on level surface, turn OFF 
machine and remove key. 
2.  Lift the appropriate brush release access cover. 
3.  Locate release lever on top of brush or pad 
driver. Rotate release lever counter-clockwise 
and the brush/pad driver will release and drop 
down. 
4.  To reinstall, center the brush driver under the 
brush drive hub. Raise until it contacts brush 
driver assembly. Turn clockwise until release 
lever plate locks into position. 
NOTE: Check that release plate is completely 
closed and pad/brush is securely attached. Damage 
to driver or brush could occur. 
4.  RECOVERY TANK FLOAT SHUT-OFF 
When water is no longer being vacuumed from the 
floor and the vacuum fan is operating, the ball float 
has engaged. The vacuum motor will not vacuum 
water with recovery tank full. The recovery tank 
must be drained. 
1.  The float shut-off screen can be cleaned in or 
out of the machine. 
2.  To clean the float shut-off while it is inside the 
machine wipe material off screen then rinse. 
Check that the ball is also clean and moves 
freely. 
3.  To remove the float shut-off, grasp the screen 
with one hand and the connected tube with the 
other. Tilt and pull the float screen assembly to 
pull it off the barb on the tube. 
To install, place one hand on the tube, and then 
tilt and push the float screen assembly over the 
barb on the tube. 










