MAINTENANCE
77
8400D MM312 (2–94)
4. Press the brush spring clip ends together
with your thumb and index finger to remove
the scrub brush. Repeat for the other
brushes.
5. Start with the center brush. Slide the new
scrub brush under the scrub brush drive
assembly.
6. Line up the scrub brush drive socket with the
drive plug.
7. Press the brush spring clip together and lift
the scrub brush onto the drive plug. Release
the spring clip when the brush is in place.
Repeat for the other brushes.
SOLUTION SYSTEM
SOLUTION VALVE
ES
machines: The solution valve lever has two
mounting holes for the solution control linkage.
The linkage is mounted to the inside hole at the
factory. The linkage can be moved to the middle
hole to increase solution flow to the floor. And
moved to the outside hole for even greater flow to
the floor.
RECOVERY TANK
The recovery tank stores recovered solution. The
recovery tank should be drained and cleaned
daily, or whenever the float stops the vacuum fan
or the recovery tank full light comes on.
NOTE: The water must not be hotter than 55
C
(130
F), or tank damage may occur. Do not use
steam to clean the tank.
SOLUTION TANK
The solution tank contains the cleaning solution.
The solution tank does not require regular
maintenance. If deposits form on the bottom of
the tank, rinse the tank with a strong blast of
warm water.
NOTE: The water must not be hotter than 55
C
(130
F), or tank damage may occur. Do not use
steam to clean the tank.
The solution tank on machines with the ES
option should be drained and cleaned daily.
