Redgully said:
jltrent said:
Usually the condenser is in front of the radiator. The fan overhead is close to the evaporator as it blows air through.
Ours is a red dot and mounted on the cab roof with the hoses running down to compressor run by the engine. The engine is air cooled so may be why they did it this way. At first we were really dissatisfied with it and a few people looked at it and said all working as it should. One day we had a local guy out and he pointed out the fan needs adjusting, the difference was amazing and kind of justified our thinking. Up to that point we started feeling like we were just complaining about nothing.
Yep, that's why.
Liquid cooled tractors have a cooler "stack" in front of the fan, which is non adjustable. A/C condensor is usually first, then hydraulic/engine oil coolers, and the radiator is last. Some tractors have an intercooler in there as well.
Usually if the condensor is not getting enough air, both high and low side pressures will creep up, especially the high side.