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Porpoising

Willie B

Willie B

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Mount Tabor VT
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Electrician
Tinkerer said:
Willie; Is there any chance one of the hydraulic cylinders has a piston leaking badly ?? That would explain the quick drop problem.
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No leaks. I wouldn't say i have a quick drop problem. The tractor was climbing up something, then tipping as a short tracked crawler will as it passes the center of gravity, the nose of the tractor tips suddenly. I'm not able to lift the blade fast enough to prevent it diving into dirt. I believe it was cold snow freezing to track shoes as wet snow provided liquid water from below. This storm began as an inch of rain at 35 degrees F, then turned gradually to dry cold powder snow through the night. Only the top was dry powder at 18 degrees F. Below at ground level was translucent water saturated snow.
 
Willie B

Willie B

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Mount Tabor VT
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Pixie said:
How about hanging a 'ski' of some kind over the blade on a chain..... About 2 feet long and in line with travel ?

Though I don't have a dozer, I have a short tracked unit with blade that does the same thing. ( Bombardier J5 ) I also have a crushed stone driveway and just pack it till ice forms on the ground and I can use my snowcat.
Click to expand...

I feel like the first 60 years of my life the ground froze reliably. Last few years it never seems to be frozen.

There might be some merit in the ski idea.
 
T

Tinkerer

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Ok, That gives me a much clearer idea of what you were dealing with.
I pushed a lot of snow in my days and never had that happen. I had tracks get packed with snow and they would get so tight the engine worked really hard just to go forward.
 
Willie B

Willie B

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Mount Tabor VT
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A fellow up north has the same tractor as me, but he has new undercarriage. He tells me he gets popping & snapping in snow as snow packs hard in the gullets at rear & between chains & idler in front. Mine has some wear, so I haven't experienced that. Other times I've found plowing snow over thawed road is a matter of plowing most of the snow, leaving a couple inches to pack.
 
bam1968

bam1968

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IA
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Excavating Contractor
IDK if this would work in your situation but it might be something to think about. A number of years ago I bought an old plow truck plow that the guy had retrofitted to mount on the bucket of a 930 Cat loader. To keep it from gouging he mounted a long roller just behind the cutting edge of of the plow. So basically when you set it on the ground the cutting edge of the plow was about an inch from the ground. IIRC the roller was about 3" in diameter. The reason I bought it was because we had a 920 Cat loader at the time. I used it for a number of years and it worked pretty darn good. Like I said it might not work in your situation but something to think about.
 
Willie B

Willie B

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Messages
4,060
Location
Mount Tabor VT
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Electrician
bam1968 said:
IDK if this would work in your situation but it might be something to think about. A number of years ago I bought an old plow truck plow that the guy had retrofitted to mount on the bucket of a 930 Cat loader. To keep it from gouging he mounted a long roller just behind the cutting edge of of the plow. So basically when you set it on the ground the cutting edge of the plow was about an inch from the ground. IIRC the roller was about 3" in diameter. The reason I bought it was because we had a 920 Cat loader at the time. I used it for a number of years and it worked pretty darn good. Like I said it might not work in your situation but something to think about.
Click to expand...
I like the idea. You are talking of an 8'long roller. How are the bearings done to make it roll?
I was leaning toward an 8' wide plow shoe, or even a snow pusher. I'm trying to imagine how to keep it rolling.
 
bam1968

bam1968

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IA
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pignone-prod.jpg I should have worded that a little different. I believe it was a 12' plow off of an old truck that the state used to plow the roads. IIRC the roller was @ 10' long. I think it was a little bit narrower that the blade. It's been a number of years ago so I'm struggling to remember the specifics. I do remember that it had grease zerks on each end that were recessed in the center of the roller. Maybe something like one of these less the sprocket and longer. I wish I was more help
 
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