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  1. #11
    Veteran Member
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    Aug 2004
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    1,703
    Location
    Caldwell Co. NC
    Tractor
    2006 Kama554; 92 Belarus 250AS

    Default Re: Subframe for ARPS 730 backhoe

    Here's the Talley:
    Used ARPS 730 $2200 and bought less than 10 miles from home.
    Replace Gresen valve section, add PBY, new o-rings, etc about $200 at Baum Hydraulics.
    Stabilizer cylinders and fittings from Surplus Center were another $200. Probably another $250 in other hoses fittings, welding rods, pins, fasteners etc. The steel was nearly free, at most $.06/lb scrap price.

    Still well under $3000 for the whole shebang. I didn't keep track of my time. I started on the subframe arount May 1st.

    The dig depth is supposed to be 9-1/2 feet. It's about all the backhoe I want on my tractor.
    2006 Kama 554, 92 Belarus 250AS, Bombardier Outlander Max 400.

  2. #12
    Gold Member
    Join Date
    Jan 2007
    Posts
    299

    Default Re: Subframe for ARPS 730 backhoe

    You have done a great job of mounting your BH to your tractor and have also sent an excellent lot of pictures in regard to it.
    Is the swing angle 180 Degrees?

  3. #13
    Veteran Member irwin's Avatar
    Join Date
    Feb 2007
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    1,279
    Location
    SE Conn
    Tractor
    2004 Kubota L35TLB, '89' Cub Cadet 1541

    Default Re: Subframe for ARPS 730 backhoe

    Quote Originally Posted by Brad_Blazer View Post
    Here's the Talley:
    Used ARPS 730 $2200 and bought less than 10 miles from home.
    Replace Gresen valve section, add PBY, new o-rings, etc about $200 at Baum Hydraulics.
    Stabilizer cylinders and fittings from Surplus Center were another $200. Probably another $250 in other hoses fittings, welding rods, pins, fasteners etc. The steel was nearly free, at most $.06/lb scrap price.

    Still well under $3000 for the whole shebang. I didn't keep track of my time. I started on the subframe arount May 1st.

    The dig depth is supposed to be 9-1/2 feet. It's about all the backhoe I want on my tractor.
    Hey Brad what are you going to do with your time now that you've finished with the backhoe frame building project?

    I built a subframe for a much smaller hoe a couple years ago..it took all my spare time and then some.. I didn't do as good a job as you did either.

    Congratulations you've got a good tool and the satisfaction of a job well done.
    .....Tim

  4. #14
    Elite Member
    Join Date
    Mar 2002
    Posts
    2,829
    Location
    Iuka Mississippi USA
    Tractor
    3550 Fard Backhoe and a 1948 Farmall Cub,

    Default Re: Subframe for ARPS 730 backhoe

    I have a large ARPS hoe. I t came off a 100 HP tractor I was told it was a 730 it looks like yours. How big is your tractor you mounted it to? I bought mine to trade on I need to replace 2 cylinders and do some maintenance on it. Ithought of truck mounting mine to an old Mobile home toter. Great job on the Subframe

  5. #15
    Veteran Member
    Join Date
    Aug 2004
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    1,703
    Location
    Caldwell Co. NC
    Tractor
    2006 Kama554; 92 Belarus 250AS

    Default Re: Subframe for ARPS 730 backhoe

    RW - Thanks for the kind words. Yes ,the swing is 180 degrees. It uses a pair of single acting cylinders to pull a pair of large chains that drive the swing. This design was common to several of the ARPS models.


    irwin - Thanks - Yeah, it's good to have this one knocked out. Who would've thunk just mounting the thing would be such a project? I really have to applaud the guys on here who build the whole thing from scratch.

    TTN -You have the same one? Mine has a name tag visible in the left picture on the horizontal plate just to the right of the swing bumper.

    I think it's a pretty neat design, especially considering the vintage. It has the bent boom and I don't think I've seen any other units with the seat that swings with the boom. (I did learn that riding with the boom provides extra incentive for smooth operation.)

    Mine has signs of age but not wear. I'm guessing that with the manual stabilizers it wasn't originally bought by someone who dug for a living. Let me know where (if) your's is showing wear and tear so I can keep an eye on mine. My tractor is a Kama KM554 (55hp Chinese). 3RRL has the same model. To use the 3-point mount I think a bigger tractor would be better.
    2006 Kama 554, 92 Belarus 250AS, Bombardier Outlander Max 400.

  6. #16
    Elite Member
    Join Date
    Mar 2002
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    2,829
    Location
    Iuka Mississippi USA
    Tractor
    3550 Fard Backhoe and a 1948 Farmall Cub,

    Default Re: Subframe for ARPS 730 backhoe

    Mine looks the same as yours but it had hydrauilc outriggers and it lloks bigger.. This one came off a 100 hp tractor in rice country fore digging out channels. We had a 970 JD with an Ameriquip/ARPS backhoe attachment factory and the sing cylinders and chains are like the big one. This old hoe loks to have a 17 or 18 foot reach on it. Ill take some measurements of mine. The Farmer I bought thos one from had 2 workers pick it up by the crowd cylinder and the bucket cylinder and made U's out of them. I found some replacement cylinders for mine that are a bit larger.

  7. #17
    Veteran Member
    Join Date
    Aug 2004
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    1,703
    Location
    Caldwell Co. NC
    Tractor
    2006 Kama554; 92 Belarus 250AS

    Default Re: Subframe for ARPS 730 backhoe

    Taylor,
    Did you do anything with your ARPS backhoe since June? Too bad about that cylinder damage. Hopefully you got it for a bargain price because of it.

    I measured mine. Pin to pin lengths are 89" for the boom, 59" for the dipper. The boom pivot is 6" forward of the swing pivot. Counting the 24" bucket length the reach adds up to 14' 10" from the swing pivot.

    I had the hoe off the tractor over the winter. I have some tasks lined up and the weather's getting better... I should be putting it back on pretty soon.
    2006 Kama 554, 92 Belarus 250AS, Bombardier Outlander Max 400.

  8. #18
    Elite Member
    Join Date
    Mar 2002
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    2,829
    Location
    Iuka Mississippi USA
    Tractor
    3550 Fard Backhoe and a 1948 Farmall Cub,

    Default Re: Subframe for ARPS 730 backhoe

    Hey Brad havent done anything on my backhoe yet. I had sold it 2 times but the folks that bought it both times said its too heavy for their tractors. What it is it has a Deere type quick hitch some one put on it and the 10 or so inches it runs out puts it too far back for alot of tractors. I was looking at it after I read this thread again and found a faded logo with 740 as the number. I havew thought of building a pontoon for it and sell it to a dock building company for light dredging in ponds. This is a straight old machine otherthan the 2 cylinders and the last person that had it bent the seat mount unloading it here after I bought it back.

    I saw one when I was 18 mounted on fron of an old IHC cotton picker that was stripped down wit ha 3 point added to the stripper lift to run a fork lift, blade bucket and then they had this big backhoe While I worked down there i saw them use this machine alot and it was handy. I already have an old TLB and a small excavator but a man cant have too many diggers lol. Id like to built a picker based machine to work in swampy areas.

  9. #19
    Elite Member dfkrug's Avatar
    Join Date
    Feb 2004
    Posts
    4,519
    Location
    NorCal
    Tractor
    05 Kioti CK30HST w/ Prairie Dog backhoe

    Default Re: Subframe for ARPS 730 backhoe

    Quote Originally Posted by Brad_Blazer View Post
    It has the bent boom and I don't think I've seen any other units with the seat that swings with the boom. (I did learn that riding with the boom provides extra incentive for smooth operation.)
    Interesting hoe, BRAD, and good job with the subframe. I missed your
    earlier posts and I try to read all hoe threads if I can.

    I have not seen any hoe that takes the operator for a ride like yours does.

    From your pix, I also see that there seems to be a shock absorber spring
    to limit the shock at the end of the boom swing. I have not seen that
    type of link chain in that size for swing action, either.
    See my TBN projects at:
    http://mysite.verizon.net/resyfcgt/

  10. #20
    Elite Member
    Join Date
    Mar 2002
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    2,829
    Location
    Iuka Mississippi USA
    Tractor
    3550 Fard Backhoe and a 1948 Farmall Cub,

    Default Re: Subframe for ARPS 730 backhoe

    Theres a few of these out there like that, Arps, Long, Agraquip and a few others. Massey Ferguson had some on the first industial tractors like the 203, and early 30's When my 65 year old dad was a teenager he ran a MF backhoe set up with a swinging seat. He said it was very handy putting in septic tanks. Later when he started running excavators he said it came in handy being used to swinging with the boom. THe man I bought my hoe from also had the straigh boom Long and another one I didnt see the name on and both had a swinging seat. One was mounted on a Same rice tractors with giant bicycle looking tires.

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