
GENERAL INFORMATION
ENGLISH
SERVICE MANUAL - FOCUS®II L17 - S20 - L20 - L20 Cyl. - BOOST®L20 7
WARNING!
Always protect the machine against the sun, rain and bad weather, both under operation and inactivity condition. Store
the machine indoors.
Do not allow to be used as a toy. Close attention is necessary when used near children.
Use only as shown in this Manual. Use only Alto's recommended accessories.
Take all necessary precautions to prevent hair, jewels and loose clothes from being caught by the machine moving parts.
Do not leave the machine unattended without being sure that it cannot move independently.
Do not use the machine on slopes with a gradient exceeding the specications.
Do not use the machine in particularly dusty areas.
While using this machine, take care not to cause damage to people or objects.
Do not bump into shelves or scaffoldings, especially where there is a risk of falling objects.
Do not put any can containing uids on the machine.
The machine operating temperature must be between +32°F and +104°F (0°C and +40°C).
The machine storage temperature must be between +32°F and +104°F (0°C and +40°C).
The humidity must be between 30% and 95%.
Do not use the machine as a means of transport.
Do not use the machine on slopes with an inclination higher than 2%.
In case of re, use a powder re extinguisher, not a water one.
Do not tamper with the machine safety guards and follow the routine maintenance instructions scrupulously.
Do not allow any object to enter into the openings. Do not use the machine if the openings are clogged. Always keep the
openings free from dust, hairs and any other foreign material which could reduce the air ow.
Do not remove or modify the plates afxed to the machine.
If the machine is used according to the instructions, the vibrations are not dangerous. The machine vibration level is less
than 2.5 m/s2 (98/37/EEC-EN 1033/1995).
This machine cannot be used on roads or public streets.
Pay attention during machine transportation when temperature is below freezing point. The water in the recovery tank or
in the hoses could freeze and seriously damage the machine.
Use brushes and pads supplied with the machine and those specied in the User Manual. Using other brushes or pads
could reduce safety.
If parts must be replaced, require ORIGINAL spare parts from an Authorised Dealer or Retailer.
Carefully read all the instructions before performing any maintenance/repair procedure.
Do not wash the machine with direct or pressurised water jets, or with corrosive substances.
The machine must be disposed of properly, because of the presence of toxic-harmful materials (batteries, etc.), which are
subject to standards that require disposal in special centres (see the User Manual).
Do not pull or carry the machine by the battery charger cable and never use the battery charger cable as a handle. Do not
close a door on the battery charger cable, or pull the battery charger cable around sharp edges or corners. Do not run the
machine on the battery charger cable.
Keep the battery charger cable away from heated surfaces.
Do not charge the batteries if the battery charger cable or the plug are damaged. If the machine is not working as it
should, has been damaged, left outdoors or dropped into water, return it to the Service Center.
Before using the battery charger, ensure that frequency and voltage values, indicated on the machine serial number plate,
match the electrical mains voltage.
Do not smoke while charging the batteries.
To reduce the risk of re, electric shock, or injury, do not leave the machine unattended when it is plugged in. Before
performing any maintenance procedure, disconnect the battery charger cable from the electrical mains.
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SYMBOLS SHOWN ON THE MACHINE
WARNING!
Carefully read all instructions before performing any procedure.
WARNING!
Do not wash the machine with direct or pressurized water jets.
WARNING!
Do not use the machine on slopes exceeding the specications.
GENERAL INSTRUCTIONS
Specic warnings and cautions to inform about potential damages to people and machine are shown below.
DANGER!
This machine must be used by properly trained and authorised personnel only. Children or disabled people cannot use
this machine.
Do not wear jewels when working near electrical components.
Do not work under the lifted machine without supporting it with safety stands.
Do not operate the machine near toxic, dangerous, ammable and/or explosive powders, liquids or vapours.
Disconnect the batteries before performing any maintenance/repair procedure.
Keep the battery away from sparks, ames and incandescent material. During the normal operation explosive gases are
released.
Battery charging produces highly explosive hydrogen gas. Keep the tanks lifted during battery charging and perform this
procedure in well-ventilated areas and away from naked ames.
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