➤ Do not inhale exhaust fumes.
➤ Direct the exhaust fumes to the open air with a pipe of at least 100 mm dia.
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 re-fueling.
➤ Never refuel the machine when it is running.
➤ Do not allow fuel to overflow.
➤ Wipe up spilled fuel immediately.
➤ Keep fuel away from hot machine parts.
➤ Make sure that the ambient temperature at the machine's place of use is within permissible limits.
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.
Forces of compression:
Escaping compressed air can cause serious injury. The following information concerns work on com‐
ponents that could be under pressure.
➤ Wait until the compressor has automatically vented (check the pressure gauge: it 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 pressurised components
(e.g. pipes and vessels) as this affects the component's resistance to pressure.
The safety of the machine is no longer ensured.
Spring forces:
Sudden release of springs under tension can cause serious injuries.
Minimum pressure / check valves, pressure relief valves and inlet valves are powerfully spring-loaded.
➤ Do not open or dismantle any valves.
Air quality:
Compressed air from oil-injected compressors may not be used for breathing or processing foodstuff
without suitable treatment.
➤ Never directly inhale compressed air.
➤ Use appropriate systems for air treatment before using the compressed air from this machine as
breathing air (fresh air reinforcement) and/or in the processing of foodstuffs.
➤ Use foodstuff-compatible cooling oil whenever compressed air is to come into contact with food‐
stuffs.
3
Safety and Responsibility
3.5
Dangers
No.: 9_9425 01 E
Service Manual Screw Compressor
M170 SIGMA CONTROL MOBIL
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