Nanni Q2400 Series, User Manual

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25
S03 FLUIDS
DIESEL ENGINE COOLANTS
Failure to follow applicable coolant standards and drain
intervals can result in severe engine damage that may
not be covered under warranty. Warranties, including the
emissions warranty, are not conditioned on the use of
NANNI coolants, parts or service
RECOMMENDED COOLANTS
Other ethylene glycol or propylene glycol base coolants
may be used if they meet the following specification:
• Pre-mix coolant meeting ASTM D6210 requirements
• Are nitrite-free
• Coolant concentrate meeting ASTM D6210
requirements in a 40—60% mixture of concentrate
with quality water
If coolant meeting one of these specifications is
unavailable, use a coolant concentrate or pre-mix coolant
that has a minimum of the following chemical and
physical properties:
• Provides cylinder liner cavitation protection according
• Is formulated with a nitrite-free additive package
• Protects the cooling system metals (cast iron,
aluminum alloys, and copper alloys such as brass)
from corrosion
WATER QUALITY
Water quality is important to the performance of the
cooling system. Deionized or demineralized water is
recommended for mixing with ethylene glycol and
propylene glycol base engine coolant concentrate.
COOLANT DRAIN INTERVALS
Drain and flush the cooling system and refill with fresh
coolant at the indicated interval, which varies with the
coolant used.
IMPORTANT!
Do not use cooling system sealing additives or antifreeze
that contains sealing additives.
Do not mix ethylene glycol and propylene glycol base
coolants.
Do not use coolants that contain nitrites.
OPERATING IN WARM TEMPERATURE CLI-
MATES
NANNI engines are designed to operate using
recommended engine coolants.
Always use a recommended engine coolant, even when
operating in geographical areas where freeze protection
is not required.
IMPORTANT!
Water may be used as coolant in emergency situations
only.
Foaming, hot surface aluminium and iron corrosion, scal-
ing, and cavitation occur when water is used as the cool-
ant, even when coolant conditioners are added.
Drain cooling system and refill with recommended engine
coolant as soon as possible.