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HD5 Question

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creeperfreak View Drop Down
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Joined: 10 May 2013
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Post Options Post Options   Thanks (0) Thanks(0)   Quote creeperfreak Quote  Post ReplyReply Direct Link To This Post Topic: HD5 Question
    Posted: 29 Jul 2015 at 9:04pm
How much weight can an HD5G safely carry on its back?  I just picked-up a smokin deal on a Kelley B70 3-point backhoe with  the intention of adapting it to fit my track-loader, but I'm concerned the 2,000 lb weight might be too much for the Allis axles and bearings.
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Coke-in-MN View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Coke-in-MN Quote  Post ReplyReply Direct Link To This Post Posted: 29 Jul 2015 at 10:17pm
It should handle it well - only problem will be to mount you will need to remove counter weights from HD5 and use a tool carrier of some type to mount onto back case . 
 Another problem is the HD 5 hyd pump might not be high enough pressure for hoe , the flow rate of 5 G is 32 GPM but at about 1200 to 1500 lb pressure .
 Rear axles on the 5 have 3 sets of bearings - outside at the truck frame - inside at case by sprocket and inside under machine - outboard of rear case . 
 My HD4 only had 2 sets of bearings at sprocket and inside under machine and I had a AC 650 backhoe on that . 



Edited by Coke-in-MN - 29 Jul 2015 at 10:17pm
Faith isn't a jump in the dark. It is a walk in the light. Faith is not guessing; it is knowing something.
"Challenges are what make life interesting; overcoming them is what makes life meaningful."
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creeperfreak View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote creeperfreak Quote  Post ReplyReply Direct Link To This Post Posted: 31 Jul 2015 at 8:50pm
Thanks, Coke. Youre right about the hydraulics, Kelley calls for a min. pump out-put of 2000psi/6-9gpm.  The ideal solution here would be a two section pump, but i'll probably mount a second pump to handle the backhoe.
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Coke-in-MN View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Coke-in-MN Quote  Post ReplyReply Direct Link To This Post Posted: 09 Aug 2015 at 7:42am
Another way would be to take hydreco pump and replace it with higher pressure pump - then use diverter valve or relief valve for loader frame and separate one on hoe . 
 OR larger cylinder bore on new hoe to work at lower pressure . 

Faith isn't a jump in the dark. It is a walk in the light. Faith is not guessing; it is knowing something.
"Challenges are what make life interesting; overcoming them is what makes life meaningful."
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partswapper View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote partswapper Quote  Post ReplyReply Direct Link To This Post Posted: 26 Aug 2015 at 6:25pm
hey coke quick question on a hd5b just put all new steering clutches soup to nuts . I recently picked up a pto driven winch . wanted to try and find pto shaft assy and install before I put fuel
and and all back on. also need bearing info for the steering levers any Ideas? any help much appreciated
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Dozer View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Dozer Quote  Post ReplyReply Direct Link To This Post Posted: 27 Aug 2015 at 3:36pm
The bearings on the control levers should be available from a bearing supply house. I replaced mine with "oilite" bushings. I have also replaced other bearings and bushings by making them from teflon or delren.
I recently repaired a steering cylinder that I could not get parts for by making the piston seals.
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