Maintenance
Cooling system
At drain holes 1:
u Check for leaks.
In case of water leaks:
u Leaking of condensation water is not an issue. Let the condensation water flow out.
In case of air leaks:
u Air leaks are normal.
In case of leaks of water mixed with antifreeze:
u Inspect charge air cooler for leaks. If necessary, make sure that the leaks are repaired by the
authorized service personnel.
5.10.4 Checking relief bores — coolant pump — SL003
q Preparatory maintenance activities are fulfilled. (For more information see: 5.5 Preparatory
maintenance activities, page 98.)
DANGER
Hazards by ejection of hot operating fluids or filler cap.
Hot fluid spray from a pressurized cooling system will result in death or serious injury by burns.
Filler cap ejected by operating fluid under pressure will result in death or serious injury 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.
Fig. 74: Relief bores on coolant pumps
1
Coolant pump high temperature 2 Coolant pump low temperature
KD62V12 33521030301_8_1 EN_US 2022-09
© 2022 by Kohler Co. All rights reserved.
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