7.4 Low-temperature operation (winter)
The machine's electrical equipment is designed for starting at ambient temperatures as low as
−10 °C.
➤
In temperatures below 0°C, use the following operating materials/components:
■ winter-grade engine oil,
■ low viscosity cooling oil for the compressor,
■ winter-grade diesel fuel
■ Stronger batteries
Use air hoses that are as short as possible under extremely cold conditions.
Allow the engine to warm up:
1.
NOTICE!
Problems with pneumatic control at low temperatures.
Damage to the machine may be caused by ice particles in the pneumatic control and feedback
systems.
➤ Let the machine warm up in IDLE to ensure trouble-free regulation.
2. Allow the machine to warm up in idle with open air outlet valves until an airend discharge tem‐
perature of +30 °C is reached. The airend discharge temperature is shown by the temperature
gauge switch on the instrument panel.
7.4.1 Starting assistance
If the machine's starter battery is discharged, it can be started with the battery of another vehicle or
engine-driven machine.
Material Jumper cables
Precondition The machine is disconnected from the towing vehicle and safely parked.
WARNING
Fire and explosion hazard.
High currents can flow if the battery is short-circuited. A damaged battery can catch fire or
explode.
Battery casing may crack and allow acidic fluid to spray out.
➤
Observe the instructions provided with the jumper cables.
➤ Do not connect the battery jumper cables to the negative pole of the discharged battery
or to the bodywork of the machine.
➤ Work with caution.
7 Initial Start-up
7.4 Low-temperature operation (winter)
No.: 9_6974 20 E
Service manual Portable compressor
M122
59
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