Kohler SFGLD480 Operation & Maintenance Manual page 290

Particular attention should be paid to the specifications of this product and the supplier's recommendations as
excessive recirculation may damage some components. In addition, before refilling the circuit, it must be
cleaned with water to remove all traces of hydrochloric acid in the installation.
This cleaning product should be used with the appropriate security measures to avoid contact with any part of
the body because it can be very dangerous.
If you notice a decrease in the thermal efficiency of the intercooler or when the operating hours set out in the
guidelines for maintenance are reached, it can be disassembled for cleaning. The tubes are thoroughly cleaned
using a nylon brush that has been dampened. They are then rinsed with plenty of water until no further deposit
exits. The water seals have to be changed before assembling the intercooler. Cleaning can be done using high
pressure water and using equipment designed for it, like the rest of the cooling system, by recirculating a
suitable cleaning. We can do the same with the oil cooler.
The water thermostat is another component that has to be checked, which is built in to the corresponding
casting housings. To verify proper operation, they are periodically placed into a bowl of water, heating it and
controlling the temperature from the start and end of opening. The opening start temperature is marked on the
base of the capsule in which the wax is enclosed which enables the thermostat to operate, while the opening
end temperature is 13ºC greater than the previous temperature. If the data obtained deviates significantly from
the specified values, the thermostat needs to be changed.
PRODUCT INFORMATION
IO-C-M-20-002e
COOLING SYSTEM MAINTENANCE
5.2.59
INDEX DATE
G
June 2016
O&M_2.002211.810_A_10_2016
Dep. 2
5/5