L4060 Cab model AC issue

Gnlandrus

New member

Equipment
Kubota L4060 HST CAB
Apr 15, 2025
10
2
3
Reno NV
I have a new to me L4060 with 760 hours. Love it but I’m have in a AC issue.
It’s not cooling like it is supposed to. I have started looking for the problem and discovered the compressor is cycling on and off very quickly. It runs for about a second and disengages after about a second, re engages a couple of seconds later and runs for 1 second again.
I have done some research and found the most common problem is low Freon. I put 1, 12oz can in and it’s still doing it.
Any ideas? Bad pressure switch?
Also, I don’t see anything in the sight glass when the ac is running.
Any/all help appreciated.
Greg