53
Maintenance
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, tilt and pull the float
screen assembly off the tank fitting barb.
4.
To install, tilt and push the float screen assembly
over the tank fitting barb.
FOR SAFETY: Before leaving or servicing
machine, stop on a level surface, turn off machine
and disconnect power.
To Repair or Replace Vacuum Motor
1.
Remove rear cover from machine.
2.
Remove upper control panel.
3.
Remove three screws on lower panel and hinge
panel down.
4.
Disconnect electrical connector from the vacuum
motor.
5.
From topside, remove one nut in front of vacuum
motor.
6.
From backside, support vacuum motor and remove
two remaining nuts on vacuum housing.
7.
Lower vacuum motor, remove front rubber isolator
from stub. Pull vacuum motor and upper housing
out of machine. Lower housing and hoses stay with
machine.
8.
Remove upper housing from vacuum motor by
removing four screws.
9.
Reverse steps to install. Make sure that gasket is
on vacuum so that vacuum seals against tank.
3
8
[9.5mm]
Vacuum Motor Carbon Brushes
Carbon
Brushes
End Cap
If armature commutator is grooved, extremely pitted or not
concentric, the motor will need to be replaced or sent to a
qualified service center.
Inportant:
These brushes wear quicker as the length shortens due to
increased heat. Spring inside brush housing will damage
motor if brushes are allowed to wear away completely.
Periodically check the length of the carbon brushes. Replace
both carbon brushes when either is less tan 3/8" (9.5mm)
long.
86395370 Operator Manual - Chariot 3 iScrub 26
