Coolant quality
Within the scope of further technical development, new corrosion inhibitors/antifreeze have been
approved by the engine manufacturer.
Compared to the previously approved corrosion inhibitors/antifreeze, they feature the following ad‐
vantages:
■ Fewer deposits in the engine cooling system
■ Improved heat flow
■ Higher environmental sustainability
The coolant (cooling fluid) is treated by adding anti-freeze with corrosion protection additives on the
basis of ethylene glycol to the water.
Coolant must meet the operating instructions of the engine manufacturer KUBOTA.
➤ Do not use a corrosion inhibitor/antifreeze that has not been approved by the engine manufac‐
turer.
➤ Do not use any impermissible mixing ratios of corrosion inhibitor/antifreeze and water.
Further information See chapter 10.4.1.3 for information on preparing/mixing the coolant to be used.
Initial filling of corrosion inhibitor/antifreeze
For the initial filling, the coolant cooler is filled with a mixture of the following liquid components:
Components
Description
Percentages [% vol.]
Corrosion inhibitor/antifreeze KAESER FLUID ENGINE ANTIFREEZE /
(Glysantin
®
G40
®
)
50
Water
50
Tab. 31 Initial filling of engine water cooler
Miscibility with other corrosion inhibitors/antifreeze agents
We do not recommend mixing with different corrosion inhibitors/antifreeze agents even if from the
same manufacturer. This can result in significantly reduced corrosion protection/antifreeze and
may damage the engine cooling system and consequently the engine. Mixtures of different corro‐
sion inhibitors/antifreeze agents generally provide a lower performance than the specially balanced
active components of one coolant type.
Therefore, the use of different corrosion inhibitors/antifreeze agent is only allowed after con‐
sulting with and approval from the engine manufacturer!
2.6.5 Fluid volumes
Description
Fluid volume [gal]
Engine oil
2.38
Fuel
28.00
Coolant
3.17
Tab. 32 Fluid volumes
2
Technical Data
2.6
Engine
14
Operator Manual Portable Rotary Screw Compressor
MOBILAIR M58utility SIGMA CONTROL SMART
No.: 901779 08 USE
