Nilfisk-ALTO 05221F, 05220G, 05211F, 05230F, 05231F, 05220F HOW to Correct Problems in the Machine

HOW TO CORRECT PROBLEMS IN THE MACHINE

PROBLEM	CAUSE	ACTION
The machine does not remove all	The squeegee is up	Lower the squeegee.
the water from the floor.
	The vacuum tank is full.	Drain the tank.
	The screen filter is dirty.	Clean the screen filter.
	There is an obstruction or damage in the	Remove the obstruction or repair the
	squeegee, squeegee hose or standpipe.	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	Turn or replace the squeegee blade.
	incorrectly installed.	Correctly install the squeegee blade.
	The squeegee pressure is not correctly	Adjust the pressure of the squeegee.
	adjusted.
	The gaskets on the cover of the recovery	Replace the gaskets.
	tank are damaged.
The batteries do not give the normal	The battery terminals are dirty or damaged.	Clean the terminals and connectors.
running time.		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,	Have an authorized service person make
	casters or the solution valve.	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.

-28- FORM NO. 70935A Nilfisk ALTO Operator's Manual - SCRUBTEC 770 / 784 / 795