Installation Instructions
9.12.14
Kapitel/Chapter 7: Installation Instructions - Seite/Page 77
hose. The amount of water depends on the hoses’ length (L) and its cross section. While the diesel engine is
running, cooling water is continuously injected into the exhaust system and is carted outside with the emissions by
the exhaust gas pressure. When the engine is turned off, the number of revolutions sinks quite fast. By doing so, the
point is reached where the exhaust gas pressure does not suffice anymore to cart the cooling water out. All cooling
water remaining in the hose at that point flows back into the waterlock. At the same time, the diesel engine itself
continues to cart cooling water through the cooling water pump, as long as it keeps on rotating.
The waterlock must necessarily be measured large enough that it can take the entire amount of cooling
water and, at the same time, does not exceed the prescribed vertical height of 600 mm up to the critical
point at the exhaust elbow.
Fig. 7.7.3.0-1: Volume of the waterlock
If there are any doubts, a verification can easily be made by temporarily using a clear-sighted hose (1) as exhaust
hose. In that way, the cooling water level can be checked very easily.
Fig. 7.7.3.0-2: Testing the cooling water level
1
