Cleaning The Water Pipes; Plugging The Water Pipes - Kohler SFGLD480 Operation & Maintenance Manual

Then, dry the plates with compressed air. If any plate gets damaged during this process, you can repair it with
long-nose pliers or a special-purpose tool.
If the dirt is not removed by the above procedure, use a solvent, as outlined below, to get a deeper clean.

Firstly, insert the bundle of plates into a tank where they are completely covered. Add a benzene
(minimum 75%), hydrocarbon (minimum 10%) and alcohol (minimum 2.5%) based solvent, leaving it to
stand for 24 hours. After this time, visually inspect the plates for cleanliness obtained.

If the previous step does not thoroughly clean the plates, a closed cycle recirculating a cleaning solution
is applied, wherein the flow of solvent through the bundle of plates is strengthened by means of a transfer
pump. The pump should impel 6m3/h at a pressure of 1 bar.

As a final step, compressed air is used to dry the plates.
Finally, reassemble the cooling core as explained in section 4.

2.2. Cleaning the water pipes

For chemical cleaning of the water pipes inside, it is not necessary to remove the intercooler from the engine or
the cover from the water system. If cleaning is by mechanical means, it will be necessary to remove the water
system covers in order to reach the pipes.
Chemical cleaning is suitable when the parts are not excessively dirty. To clean the pipes, circulate a mixture of
water and special cleaner in the system for at least one hour. Next, check the pipes cleanliness through the water
inlet/outlet. Finally, flush the system with clean water.
In the event of a mechanical cleaning process (after removing the covers), clean the inside of the pipes with a
special brush and then flush the system with water to remove dirt. Finally, reassemble the cooling core as
explained in section 4.

2.3. Plugging the water pipes

If any pipe leaks or is broken, both ends can be plugged with special covers to repair the leak.
NOTA
When the number of plugged pipes exceeds 5% of the total, it is necessary to replace the entire intercooler.
PRODUCT INFORMATION
IO-C-M-20-010e
MAINTENANCE OF INTERCOOLERS
5.2.68
INDEX DATE
A
January 2014
O&M_2.002211.810_A_10_2016
Dep.2
2/3