Safety Devices On The Machine; General - Alto 30CA COMPACT Instruction Manual

11. When pausing during operation, stop the machine by turning the start/stop button to pos. O and secure
the spray handle against inadvertent use by locking the trigger with the 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, pulling, knotting/
kinking etc. and keep it away from oil and sharp or hot objects, as such may cause the hose to burst.
14. Danger of scalding! Never dismount the high pressure hose or the water inlet hose while the machine is
in operation. Disconnect the cleaner, shut off the water supply and activate the spray handle before
dismounting the high pressure hose or the water inlet 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, pulling, knotting 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

Automatic start/stop (only 30CA)
The machine is fitted with a start/stop function, which automatically switches off the machine when the
spray handle is closed or if a nozzle is blocked. The start/stop function ensures that the pressure will never
exceed the working pressure by more than 20 bar. At this pressure the machine will automatically stop.
Circulation valve (safety valve) (only 30C COMPACT I)
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 auto-
matically switch from high pressure to circulation mode.
The pump will overheat if it is not disconnected within 5 min. and thus it may be damaged (only 3 min. at
50°C). The circulation valve ensures that the machine becomes devoid of pressure when it is stopped.
Motor protection
The electric motor features an overcurrent release for protection of motor against overloading. In the case
of increased power consumption (maloperation) the power 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
detergents 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 when cleaning and maintaining the machine.
7. If the electric cable is damaged, it must be replaced by ALTO trained service personnel or a similarly
trained person to avoid a dangerous situation (NB! Type Y connection: A special tool is required for the
disassemblance of the machine).
8. 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.
9. The user is obliged to observe all national working environment and working safety regulations
concerning the "operation of high pressure washers".
10. 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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