Posted by longmeadowfarm on July 29, 2016 at 13:55:03 from (67.240.12.73):
I own a New Holland T4.75 that i was using a week ago clipping pastures with a 7 ft Bush Hog. About 3 hours into a 4 hour activity I lost my air conditioning system. and finished the job with the doors open. I was running the tractor at rated 540 EPTO speeds at about 1600 engine rpm., As I finished the clipping and throttled back ..I proceeded toward the gate. After about 100 yards and as I approached the gate to the field .. the air conditioning system began to work again ???
This is what I know site glass on the dryer is green... Refrigerant(134A) level is ok Engine temp was normal radiator/condenser and transmission cooler screen were clear of debris Compressor belt is tight Fan may not have been have been operating normally/ok.. at the time of the malfunction.. cannot swear to it. May have had too much beer to deaden the pain of "clipping" pastures. I was clipping north to south with the afternoon (3 PM) sun beating agains the cab pillar that houses the fan switch and thermo0static controls.
Since that time ..the afternoon of 7/22... the air conditioning system has been operating ok/normally... using the T4.75 to cut and bale..along with some "chore" work.... no problems..
I called and sent an email outlining the problems to my New Holland dealer.. so far no feedback on what the problem may have been and may be "lurking" on another hot summer afternoon...I know that baling 75 round bales, yesterday afternoon, I was somewhat petrified that the air conditioning system may fail.. in the 90 degree heat.. thankfully it didn't..
I'm beginning to think I dreamed this whole episode up
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