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Nilfi sk ALTO Operator’s Manual (EN) - SCRUBTEC 866, 871, 866, Boost 8 and 871C FORM NO. 71492A - 25 -
HOW TO CORRECT PROBLEMS IN THE MACHINE
PROBLEM CAUSE ACTION
The machine does not remove all the
water from the fl oor.
The squeegee is up
The vacuum tank is full.
The screen fi lter is dirty.
There is an obstruction or damage in the
squeegee, squeegee hose or standpipe.
The vacuum motor is not running.
The squeegee hose is disconnected.
The squeegee blade is damaged, worn, or in-
correctly installed.
The gasket on the cover of the recovery tank
is damaged.
The recovery drain hose valve is not
closed.
Lower the squeegee.
Drain the tank.
Clean the screen fi lter.
Remove the obstruction or repair the damage.
Check for blown fuse. Have an authorized service per-
son make repairs.
Connect the hose.
Turn or replace the squeegee blade.
Correctly install the squeegee blade.
Replace the gasket.
Close valve.
The batteries do not give the normal
running time.
The battery terminals are dirty or damaged.
The electrolyte level is too low.
The batteries are not fully charged.
The charger is damaged.
The battery is defective.
The batteries are disconnected.
Clean the terminals and connectors. Replace
the damaged cables. Charge the batteries.
Add distilled water to each cell and charge the batter-
ies.
Charge the batteries for a full 16 hour charge.
Have an authorized service person repair the charger.
Have an authorized service person check voltage of
each cell while discharging.
Connect the batteries.
The cleaning is not even.
The scrub brushes or pads are worn.
There is damage to the brush assembly, cast-
ers or the solution valve.
One or both brush motors are not running
The solution level is low.
Replace the scrub brushes or pads.
Have an authorized service person make the needed
repairs.
Check for tripped breaker, reset. Check for loose
connections.
Fill the solution tank.
NOTE: If the motors continue to stop consult an autho-
rized service person.
The machine does not run.
The machine loses power.
Reset the circuit breaker.
Check wire connection to traverse motor.
Replace the fuses.
Check the batteries connections.
Release parking brake (if installed)
NOTE: If the motors continue to stop, consult an au-
thorized service person.
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