Atlas Copco XAS 88 G Kd APP - Page 46

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COOLANT
PARCOOL EG
PARCOOL EG is a ready to use Ethylene Glycol
based coolant, premixed in an optimum 50/50
dilution ratio, for antifreeze protection guaranteed to
-40°C (-40°F).
For ordering numbers refer to the spare parts list.
Liquid-cooled engines are factory-filled with this
type of coolant mixture.
In order to guarantee the lifetime and quality of the
product, thus optimising engine protection, regular
coolant-condition-analysis is recommended.
The quality of the product can be determined by three
parameters:
Visual check
 Verify the appearance of the coolant with regard to
its colour and make sure that no loose particles are
floating around.
pH measurement
 Check the pH value of the coolant using a
pHmeasuring device.
 The pH-meter can be ordered from Atlas Copco
with part number 2913 0029 00.
 Typical value for EG = 8.6.
 If the pH-level is below 7 or above 9.5, the coolant
should be replaced.
Glycol concentration measurement
 To optimise the unique engine protection features
of the PARCOOL EG, the concentration of the
Glycol in the water should always be above 33
vol.%.
 Mixtures exceeding a 68 vol.% mix ratio in water
are not recommended, as this will lead to high
engine operating temperatures.
 A refractometer can be ordered from Atlas Copco
with part number 2913 0028 00.
COOLANT LEVEL CHECK
 Check the coolant level at the level gauge on the
radiator. If necessary top up with coolant. See
section Topping up of coolant.
 Low coolant level can lead to engine overheating,
and will eventually result in permanent engine
damage.
TOPPING UP OF COOLANT
 Verify whether the engine cooling system is in a
good condition (no leaks, clean,...).
 Check the condition of the coolant.
 If the condition of the coolant is no longer up to
standard, the complete coolant should be replaced
(see section Replacing the coolant).
 Always top-up with PARCOOL EG.
 Topping up the coolant with water only, changes
the concentration of additives and is therefore not
allowed.
It is strongly recommended to use Atlas
Copco branded coolant.
Never mix different coolants and mix the
coolant components outside the cooling
system.
Never remove the cooling system filler
cap while coolant is hot.
The system may be under pressure.
Remove the cap slowly and only when
coolant is at ambient temperature. A
sudden release of pressure from a heated
cooling system can result in personal
injury from the splash of hot coolant.
In case of a mix of different coolant
products this type of measuring might
provide incorrect values.
Never remove the cooling system filler
cap while coolant is hot.
The system may be under pressure.
Remove the cap slowly and only when
coolant is at ambient temperature. A
sudden release of pressure from a heated
cooling system can result in personal
injury from the splash of hot coolant.