2320 Full Throttle Rear Snow Blower Harmonic Vibration

[MacTractor]

I am wondering if there are any other 2320 owners with a rear blower that find at Full Throttle there is a bit of a harmonic whine around the HST filter.

I didn't notice it before, so I can't tell if it related to cold hydraulic fluid. I can make it stop by grabbing the left rear fender. Drop a couple hundred RPM's and it goes away. It also seems to go away under a good load, but I would assume this is do the the RPM drop as well.

Cheers,

 

[EdC]

Mac Tractor

I don't have a snow blower, wish I did sometimes but we really don't get enough snow to justify one, but I have a harmonic when the tractor is cold (under -5 C)> It goes away once the hydraulic fluid is warmed up. Gets worse the colder it is.

 

[MacTractor]

Thanks for the Reply EdC,

Sounds like it is normal. It has been -15 the past few times I have been out there. I figured it must be cold fluid. I guess I should work the hydraulics a bit to warm it up before putting it to 3K. I normally wait for the engine to warm but not the Hydro.

 

[EdC]

All I do is cycle the hydraulics, slowly at first, for the first few minutes of warm up. Seems to work. I would be interested in knowing if it works in colder temps like what you have. One of these days I really want to move back to Montana and it does get a might colder there than it does here in eastern Washington..