Fire and explosion
Spontaneous ignition and combustion of fuel can result in serious injury or death.
➤ Allow no open flames or sparks at the place of use.
➤ Do not smoke while refueling.
➤ Never refuel the machine when it is running.
➤ Do not allow fuel to overflow.
➤ Wipe up spilled fuel immediately.
➤ Provide a fire extinguisher in the immediate vicinity.
➤ For the operation in combustible environment, fit the machine with an exhaust silencer (Op‐
tion la).
Hot coolant
The cooling system of a liquid-cooled engine at running temperature is under high pressure. If the
filler cap is unscrewed, hot coolant can spray out under pressure and cause severe scalding.
➤ Let the machine cool down before opening the cooling system.
➤ Unscrew the filler cap carefully by a quarter to half a turn at first. Remove the filler cap only
when pressure has escaped completely.
Electricity
Touching voltage carrying components can result in electric shocks, burns or death.
➤ Allow only qualified and authorized electricians or trained personnel under the supervision of a
qualified and authorized electrician to carry out work on electrical equipment according to elec‐
trical engineering regulations.
➤ Check regularly that all electrical connections are tight and in proper condition.
➤ Switch off any external power sources.
For example, the connections to the electrical engine cooling water pre-heater.
Forces of compression
Compressed air is contained energy. Uncontrolled release of this energy can cause serious injury
or death. The following information concerns work on components that could be under pressure.
➤ Wait until the compressor has automatically vented (check the pressure gauge: it must read
0 psig)
➤ Then open an outlet valve carefully to ensure that the line between the minimum pressure /
check valve and the compressed air outlet is vented.
➤ Do not carry out welding, heat treatment or mechanical modifications to pressurized compo‐
nents (e.g. pipes and vessels) as this influences the component's resistance to pressure.
The safety of the machine is then no longer ensured.
Compressed air quality
The composition of the compressed air must be suitable for the actual application in order to pre‐
clude health and life-threatening dangers.
➤ Use appropriate systems for air treatment before using the compressed air from this machine
as breathing air (fresh air reinforcement) and/or for the processing of foodstuffs.
➤ Use food-grade cooling oil whenever compressed air is to come into contact with food prod‐
ucts.
3
Safety and Responsibility
3.5
Dangers
No.: 9_9570 07 USE
Operator Manual Screw Compressor
M250 SIGMA CONTROL MOBIL
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