PRODUCT INFORMATION
INDEX
DATE
Dep. 2
IO-C-M-20-002e G
June 2016
COOLING SYSTEM MAINTENANCE
1/5
1. PROCEDURE FOR FILLING AND DRAINING THE COOLING CIRCUIT WITH ANTIFREEZE
This section describes the method of filling the cooling circuits in
Kohler
engines, and is suitable for engines
and containerized units.
Prior to filling, the
bleed valves
on the water circuits have to be opened. On the engine side, the purge in the
main circuit is located in the thermostat housing or on the inlet pipe to the latter. If there is no thermostat
housing, look for it at the highest point of the circuit. In general, for the auxiliary circuit, it is fitted to the highest
part of the dry-cooler or at a high point on the pipe.
Fig. 1 - Air bleed valve in thermostat housing
For the HGM 420/560 it should be purged both in the thermostat housing and at the highest point of the main
circuit, which is in the cylinder head water outlet manifold.
Fig. 2 - Air bleed valve in thermostat housing and cylinder head water outlet manifold, HGM 420/560
5.2.55
O&M_2.002211.810_A_10_2016