Machine is a Snapper 1855A with 591 hours on it. I have been having increasing trouble making it "go" lately. In high range, it will only pull itself along on flat ground or downhill. Going uphill it gets slower and slower, and requesting a faster speed with the hydro pedal just makes it worse. You have to back off the pedal and just barely ease into it to get the machine to go. As such, I've been using the machine in low range to get by for now. However, it's started doing the same thing in low range. With any weight in tow, it struggles to go up any incline. Also, the rear 3pth is weak, and will not lift the bushhog at all.
I've heard that if these machines are hooked to a heavy object, that they should spin both back tires until they bury up in the ground. This is defnitely not how mine behaves. I have never been able to get a tire to spin even in loose ground.
The fluid level is up on the hydraulics, fluid is pretty clean, the splines are not stripped on the hydraulic input, etc. I'm mostly convinced it's something internal. Does anyone have any ideas? Any help would most definitely be appreciated.
I have 3 of these 1855s that are somewhat driveable. This one is by far the worst, but the other two are having "pre-symptoms" as well concerning weak hydraulics. I need these to be able to work as intended, and so I'm committed to tearing in to them to fix as needed.