GF27.55-P-2000AHK Transmission Oil Cooling, Function

GF27.55-P-2000AHK Transmission Oil Cooling, Function
- TRANSMISSION 722.904 /906 /907 /999 in MODEL 171.4 as of Model Year 09 /modification year 08 model refinement package





Cooling circuit

62 Radiator
63 Transmission oil heat exchanger

A Feed, cooling circuit from transmission
B Feed, transmission oil heat exchanger
C Return, transmission oil heat exchanger
D Return, cooling circuit into transmission

Function requirements for transmission oil cooling, general
^ Circuit 87 ON
^ Circuit 61 (engine running)

Transmission oil cooling, general

Transmission oil cooling lowers the temperature of the transmission oil and thus prevents overheating damage in the transmission.

Function sequence of transmission oil cooling

The transmission oil is drawn out of the transmission oil pan by a mechanical pump in the transmission and is pumped via the feed to the transmission oil heat exchanger (which is integrated in the engine radiator). After this the transmission oil flows from the transmission oil heat exchanger through the return back to the transmission.