Kyoti CK35 HST hydraulic woe's from a newby
- Thread starter Pete28
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TJP89
Veteran Member
My guess is that when you graph the two curves together they intersect at two points (I don't think the relationship is linear), but I don't have my graphing calculator in front of me and don't feel like running the math the hard way. My guess is it is an absolutely ludicrous high temperature, outside actual possibilities.
TJP89
Veteran Member
So it is, I've forgotten my algebra. Obviously two straight lines only intersect at one point. I really wish the curves I work with were all like that.
This is all of course completely irrelevant to whatever the heck the topic was. I guess that's why I'm on TBN.
This is all of course completely irrelevant to whatever the heck the topic was. I guess that's why I'm on TBN.
TJP89
Veteran Member
-40 is too cold to even think about. I pretty much shut down in -10 (or even 0)
Buggs67
Veteran Member
I'm OK with 0C, not so much 0F, although we used to ski in some frigid temps up in VT. ANd I had to work no matter what the temp was.
jabelding
Gold Member
I am amazed it even started at -40 he must have had some type of heater. My antifreeze is not even rated for that kind of cold. We get to -20 occasionally here in Maine but I am not outside running a tractor!
k0ua
Epic Contributor
Yes, best post so far!:laughing:
SSdoxie
Elite Member
There are 3 pump systems in this tractor. 1-loader/3pt, 2- steering, & 3 - hst/charge pump. #1&2 share the same suction inlet line. All 3 share the same reservoir and suction filter (filter below the platform nest to right rear tire). Pumps can heat up and whine due to cavitation just as easily as constant running over relief. If there was a deadhead situation at rear remote the loader cylinders would still work until that cylinder reached max stroke. Oil from the loader cylinders dump back to tank, not back into Power-beyond, so of path of least resistance applies.
Given extreme cold temp, whine in HST, & fast heat build up in loader/steering pump, I would guess there is enough moisture in fluid to allow ice crystals to plug the suction filter so all 3 pumps are caveating. The HST pump will move, although sluggish) without charge pressure for a little time until it pumps itself out.
Given extreme cold temp, whine in HST, & fast heat build up in loader/steering pump, I would guess there is enough moisture in fluid to allow ice crystals to plug the suction filter so all 3 pumps are caveating. The HST pump will move, although sluggish) without charge pressure for a little time until it pumps itself out.