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Operating and Maintenance Manual
11.12.5
Filling coolant
NOTICE
Risk of damage to the engine and transmission
Even the smallest particles of dirt entering the engine or overfilling can cause engine or transmission
damage and premature wear.
►
Ensure the utmost cleanliness when handling operating fluids.
►
Check for correct filling level.
NOTICE
Risk of contamination of drinking water
Operating fluids (engine oil, fuel, coolant, etc.) can contaminate water resources.
►
Operating fluids, and components that come into contact with operating fluids, e.g. filters or
sealing rings, should be disposed of in accordance with the environmental regulations.
►
Follow the legal provisions applicable to the place of operation.
The engine's cooling system must be filled with a mixture of tap water, ethylene-glycol based anti-
freeze and possibly an anticorrosion agent:
■
Fill cooling system with the specified coolant/antifreeze agent.
■
Fill in coolant / antifreeze agent slowly, no faster than 19 l/min, to avoid bubble formation.
■
Do not put the engine cooling system cap back on.
■
Start the engine and let it run for approx. 1 min at low speed.
■
Fill coolant continuously in the specified composition up to the bottom edge of the filler neck.
■
Stop the engine and seal the cooling system again.
■
Check the cooling system for leaks and correct the operating temperature.
11.12.6
Cleaning cooling systems
Compressed air is the preferred method for removing loose dirt. But pressurised water can also be
used for cleaning:
■
Remove contaminants on the radiator fins (dust, lubricating grease, oil, etc.) with a high-pres-
sure cleaner (max. 70 °C (158 °F)) or by blowing off with compressed air from behind the radi-
ator.
■
Direct compressed air in the opposite direction to the cooling air flow: the nozzle should be
held at a distance of about 6 mm (0.2 in) from the fins and moved slowly and parallel to the
tubes.
■
To remove oil and grease, use a degreasing agent and steam.
■
Wash the radiator block with a cleaning agent and hot water, then rinse thoroughly with clean
water.
■
Clean both sides of the radiator block.
■
Check the condition of the following parts:
■
Radiator fins
■
Welding seams
■
Mounting brackets
■
Compressed air lines
■
Connections
■
Clamps
180
(255)
11 - Maintenance
Snow groomer BISON
BISON 908930245 - 30367
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