Operation and Maintenance Manual Maintenance
Cooling system
5.8 Cooling system
5.8.1 Coolant sampling — SL120
See the generator set manual for more details.
5.8.2 Checking coolant level — SL001
DANGER
Hazards by ejection of hot operating fluids or filler cap!
Hot fluid spray from a pressurized cooling system will cause death or serious injuries by burns.
Filler cap ejected by operating fluid under pressure will cause death or serious injuries by impact.
u Only perform maintenance and inspection work on the cooling system when the engine has
cooled down to ambient temperature.
u Wear proper personal protective equipment.
u Remove the filler cap when it is cold or cooled enough to be touched with bare hands.
u Loosen the filler cap to first stop to relieve pressure.
u Wait until pressure drop.
u Remove the filler cap.
Fig. 73: Risk of burns while checking coolant level
See the generator set manual for more details.
u Check the glycol concentration of the coolant with a refractometer.
In case of incorrect mixture:
u Check the quantities of water / anti-freeze mixture.
In case of correct mixture:
u Fill up with approved engine coolant inhibitors. (For more information see: 5.11.5 Diesel engine
coolant, page 129)
u Fill up with KOHLER coolant in other cases.
u Respect the level marks on the level indicator window.
KD83V16 33521030601_0_1 EN_US
2018-07
© 2018 by Kohler Co. All rights reserved.
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