Case/Davis trencher backhoe

Trucks, cars, boats, motorcycles, snowmobiles. If you can drive it and it has an engine but it's not a tractor, it fits here.
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RoamingGnome Canada
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Re: Case/Davis trencher backhoe

Post by RoamingGnome »

@Spike188 and @Eugen... Just wondering - If removing the whole assembly on the back of the trencher was an issue - could the downrigger be dropped out of the bottom of the frame? If you dug a small pit so the cylinder and sleeve would go down far enough to clear the frame work then you could work on the pin for the pad on the bench rather than at ground level?
'68 Case 195, '84 Case 446, '88 Ingersoll 222 - and 1965 Case 530ck (fullsize backhoe)
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Eugen Canada
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Re: Case/Davis trencher backhoe

Post by Eugen »

He he :giggle:

@Spike188 thank you! Right now access to the lower pins under the post is my issue. Cannot lift the posts because the frame is still connected to the trencher. One link I cut the pin last night with the sawzall. Very tight and poor access. Fortunately one I could cut because they used a bolt.

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The other side is a hardened pin, the blade doesn't cut. Already tried heat, hammering, doesn't budge. Maybe I try the angle grinder tomorrow, I'm gone to the city today.
Case 224, 444, 644, 680E
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Eugen Canada
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Re: Case/Davis trencher backhoe

Post by Eugen »

@RoamingGnome Gerry, if I don't succeed with the grinder I might dig the hole. It's muddy, if I can avoid it I will :D :109:
Case 224, 444, 644, 680E
Kubota B26 :blush:
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Toolslinger United States of America
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Re: Case/Davis trencher backhoe

Post by Toolslinger »

If only you had a backhoe.
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Eugen Canada
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Re: Case/Davis trencher backhoe

Post by Eugen »

Toolslinger wrote: Tue Apr 11, 2023 4:38 pm If only you had a backhoe.
He he! Truer words have not been spoken 😁


Any who, a separation agreement was signed and all parties are satisfied :D

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Case 224, 444, 644, 680E
Kubota B26 :blush:
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Eugen Canada
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Re: Case/Davis trencher backhoe

Post by Eugen »

One of the stabilizer cylinders was easy to unpin so after the children went to sleep I took it apart using a 24" pipe wrench for the gland. It's a strange cylinder, I'll show pics on assembly. Many seals on this one. But they're out and ready for measurements.

98A177CB-6B01-41D8-91A2-791D1CD4319C.jpeg
Case 224, 444, 644, 680E
Kubota B26 :blush:
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DavidBarkey Canada
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Re: Case/Davis trencher backhoe

Post by DavidBarkey »

@Eugen Good to see you made progress and can now order all cylinder seals . Are you going to tackle the valve body as well?
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Eugen Canada
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Re: Case/Davis trencher backhoe

Post by Eugen »

DavidBarkey wrote: Wed Apr 12, 2023 6:47 am @Eugen Good to see you made progress and can now order all cylinder seals . Are you going to tackle the valve body as well?
Not sure. Should I? What would you guys do?
Case 224, 444, 644, 680E
Kubota B26 :blush:
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thebuildist United States of America
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Re: Case/Davis trencher backhoe

Post by thebuildist »

Personally, I've grown more and more shy of opening up things that I don't know what's inside.

I'd leave it alone.

Bob
"Never be afraid to try something new. How hard can it be?"
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Spike188 Canada
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Re: Case/Davis trencher backhoe

Post by Spike188 »

Because of the sludge found in while doing my D100 a complete rebuild of the control stand was in order. During the rebuild one broken centering spring was found and replaced via local sources. There was a missing detent spacer on another spool that allowed the lever to over travel. The spacer was easy to duplicate in the drill mill. Rebuilding did not take long and gave me peace of mind. Keep in mind that here are about 50 O-rings and around 8 different sizes in the control stack.
Spike Colt - 9 & 10, Case - 108, 118, 444, 446, 448, 646, 646bh, Ingersoll 4016, 4118AH
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