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-28- FORM NO. 70935A Nilfi sk ALTO Operator's Manual - SCRUBTEC 770 / 784 / 795
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 Lower the squeegee.
The vacuum tank is full. Drain the tank.
The screen fi lter is dirty. Clean the screen fi lter.
There is an obstruction or damage in the
squeegee, squeegee hose or standpipe.
Remove the obstruction or repair the
damage.
The vacuum motor is not running. Check for tripped breaker. Have an
authorized service person make repairs.
The squeegee hose is disconnected. Connect the hose.
The squeegee blade is damaged, worn, or
incorrectly installed.
Turn or replace the squeegee blade.
Correctly install the squeegee blade.
The squeegee pressure is not correctly
adjusted.
Adjust the pressure of the squeegee.
The gaskets on the cover of the recovery
tank are damaged.
Replace the gaskets.
The batteries do not give the normal
running time.
The battery terminals are dirty or damaged. Clean the terminals and connectors.
Replace the damaged cables. Charge the
batteries.
The electrolyte level is too low. Add distilled water to each cell and charge
the batteries.
The batteries are not fully charged. Charge the batteries for a full 16 hour
charge.
The charger is damaged. Have an authorized service person repair
the charger.
The battery is defective. Check voltage of each cell while
discharging.
The batteries are disconnected. Connect the batteries.
The cleaning is not even. The scrub brushes or pads are worn. Replace the scrub brushes or pads.
There is damage to the brush assembly,
casters or the solution valve.
Have an authorized service person make
the needed repairs.
The brush motors are not running. Check for tripped breaker, reset. Check for
loose connections.
The solution level is low. Fill the solution tank.
NOTE: If the motors continue to stop
consult an authorized 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.
Check parking brake overide lever
position (if installed)
NOTE: If the motors continue to stop,
consult an authorized service person.