Safety Devices On The Machine; General - Alto 03K Serie Manual De Instrucciones

6. According to regulations persons under the age of 18 must not operate cleaning machines with a work-
ing pressure above 70 bar (applies to this machine).
7. The machine should be placed as far away from the cleaning site as possible.
8. Only let instructed personnel operate the machine.
9. Don't start the machine until the high pressure hose has been correctly mounted.
10. Spray handle and lance are affected by a thrust during operation - therefore always hold
the spray lance firmly with both hands.
11. At intervals during operation, the machine should be stopped and the spray handle secured against
inadvertent use by locking trigger with locking device.
12. Only activate the trigger by hand. Never tie it up or fix it in any other way.
13. Avoid damage to the high pressure hose such as running over by a car, squeezing, pull, knots/kinks
etc. and keep it away from oil and sharp or hot objects, as such may cause the hose to burst.
14. Never dismount the high pressure hose while the machine is in operation. Disconnect the cleaner and
the water connection before dismounting the high pressure hose.
15. Never jerk the cable to disconnect the plug from socket.
16. Always disconnect the plug from socket prior to disconnecting any extension cables.
17. Avoid damage to the electric cables such as running over by a car, squeezing, pull, knots etc. and
keep them away from sharp or hot objects.
18. According to the legislation in many countries it is forbidden to use the machine in an environment where
there could be a danger of explosion. If any doubt arises, please contact your local authorities.
Important: OFFSHORE - Never use the machine in an environment where there could be a danger
of explosion (according to EN-50014).
19. WARNING! High pressure hoses, nozzles and connections are important for safety when operating the
machine. Only use the high pressure hoses, nozzles and connections prescribed by ALTO.
20. For safety reasons only use original ALTO accessories and spare parts.
21. In icy conditions never start the cleaner until machine, hoses and accessories have thawed. Otherwise
the machine could be damaged.
22. The cleaner should not be covered during operation.

2.3 Safety devices on the machine

Circulation valve (safety valve)
The pressure side of the high pressure pump is fitted with a circulation valve (safety valve). This valve
circulates the water back to the suction side of the pump when the spray handle is closed or if a nozzle is
blocked. The circulation valve has been constructed as a safety function ensuring that the pressure will
never exceed the working pressure by more than 20 bar. At this pressure the circulation valve will automa-
tically switch from high pressure to circulation mode. The circulation valve ensures that the machine be-
comes devoid of pressure when it is stopped.
Motor protection
The electric motor features built-in thermal switches for protection of motor against overloading. In the
event of increased power consumption (maloperation) the power supply for the motor will automatically be
disconnected.

2.4 General

1. It is not allowed to clean asbestos-containing surfaces with high pressure, unless using special equipment.
2. Persons under the influence of alcohol, drugs and medicine should not operate the machine.
3. Never touch plug and socket with wet hands.
4. WARNING! This machine has been constructed for use with ALTO detergents. The use of other deter-
gents or chemicals may cause problems as to the operation and the safety.
5. When using detergents the instructions should always be strictly observed.
6. Always unplug before cleaning and maintenance of the machine.
7. Don't use the machine if the electric cable or important parts of the equipment are damaged - i.e. safety
devices, high pressure hoses, spray handles, cabinet.
8. The most efficient cleaning is obtained if you adjust the distance to the surface which is to be cleaned.
Thus you will also avoid damaging the surface.
Safety precautions and warnings
GB
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