➤ Do not inhale exhaust fumes.
➤
Never use the machine in enclosed spaces, only in the open.
➤ Direct the exhaust fumes to the open air with a pipe of at least 100 mm diameter.
Fire and explosion
Spontaneous ignition and combustion of fuel can result in serious injury or death.
➤ Do not allow open flames or sparks at the place of use.
➤ Do not smoke while re-fueling.
➤ 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.Cool‐
ant can spray out when the filler cap is opened causing severe burns.
➤ 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 authorised electricians or trained personnel under the supervision of a
qualified and authorised electrician to carry out work on electrical equipment according to elec‐
trical engineering regulations.
➤ Check regularly that all electrical connections are tight and in order.
➤ Switch off any external power sources.
For example, the connections to the electrical engine cooling water pre-heater.
Forces of compression
Compressed air is a contained force. Uncontrolled release of this force 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 must read 0
bar!)
➤ 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.
3 Safety and Responsibility
3.5 Dangers
20
Service manual Portable compressor
M122 No.: 9_6974 20 E
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