On the TL130 when it rains with the windows closed; there always is now water inside the cab, the roof is not leaking it is the windows. Any one have a fix for this? I am thinking it is leaking in through or bypassing the seal between the window and the frame of the cab. The cab has a door, it is shut when it rains.
Can you rent or borrow a smoke machine, has helped me with water leaks
How old is the machine? After a while the seals break down and they all leak.
Do any testing with HVAC fan on high and the engine running at WOT. When the cab seals on these machines age the engine cooling fan pulls air/dust/rainwater through the cab so any leaks worsen as engine RPM increases.