Results 1 to 6 of 6
  1. #1
    Silver Member meb9796's Avatar
    Join Date
    Jan 2008
    Posts
    113
    Location
    VA
    Tractor
    JD 2305

    Default rebuilding old ARPS 728 backhoe

    I'm rebuilding a ARPS 728 backhoe attachment. I've got it torn down and I'm in the process of removing the old paint/rust, and I'm starting on the list of hardware I need to replace. I've attached a photo, but the pistons that control the left and right movement of the backhoe are mounted under the seat and bolted to the frame using 3 long threaded rods. Where they attach to the frame, there is a spring on the end of each bolts between two washers, held in place by a nut. My question is A) where do I find these springs (Mcmaster-Carr's inventory is too big for me to figure out which one I need and/or B) Could I get away with replacing these with something else (ie 2-3 lock washers, etc).

    thanks in advance.

    I'll post some pics when I get more of it down. Got the first coat of John Deere Green on about 1/3 of the pieces parts this morning.
    Attached Thumbnails Attached Thumbnails -piston-spring-jpg  
    JD3720
    300cx FEL
    7' Front blade
    woodmaxx 8" PTO chipper
    Leinbach 7200JR PHD with 12" auger
    Betst 60" EFG155 flail mower
    Bark Buster log splitter
    47" snow blower

  2. #2
    Veteran Member
    Join Date
    Mar 2010
    Posts
    1,295

    Default Re: rebuilding old ARPS 728 backhoe

    I would think the springs are there to provide some,'' cushin''. I would check to see if there is the posibility of any movement before replacing with a hard type of fastening method. Are the springs completely collapsed?

  3. #3
    Silver Member meb9796's Avatar
    Join Date
    Jan 2008
    Posts
    113
    Location
    VA
    Tractor
    JD 2305

    Default

    About half of them were compressed or slightly deformed. All the threaded rods were bent, so I think this thing has seen some abuse. Was able to heat, straighten, and run a die down them, so they'll work again.
    JD3720
    300cx FEL
    7' Front blade
    woodmaxx 8" PTO chipper
    Leinbach 7200JR PHD with 12" auger
    Betst 60" EFG155 flail mower
    Bark Buster log splitter
    47" snow blower

  4. #4
    Veteran Member
    Join Date
    Aug 2004
    Posts
    1,719
    Location
    Caldwell Co. NC
    Tractor
    2006 Kama554; 92 Belarus 250AS

    Default Re: rebuilding old ARPS 728 backhoe

    Contact Ameriquip and see if they stock or have the specs for the spring p/n arp-8673. Otherwise measuring the spring and finding one that is close enough at McMaster isn't that hard.
    http://www.amerequip.com/assets/docu...28-backhoe.pdf
    2006 Kama 554, 92 Belarus 250AS, Bombardier Outlander Max 400.

  5. #5
    Silver Member meb9796's Avatar
    Join Date
    Jan 2008
    Posts
    113
    Location
    VA
    Tractor
    JD 2305

    Default Re: rebuilding old ARPS 728 backhoe

    I have that manual, and all the part numbers. I'm also having a problem finding the pin retainers that were broken off. I've been to Amerequip's website, but didn't see a listing so looked elsewhere. I'll send them an email to see what they say. Thanks for the idea.
    JD3720
    300cx FEL
    7' Front blade
    woodmaxx 8" PTO chipper
    Leinbach 7200JR PHD with 12" auger
    Betst 60" EFG155 flail mower
    Bark Buster log splitter
    47" snow blower

  6. #6
    Silver Member meb9796's Avatar
    Join Date
    Jan 2008
    Posts
    113
    Location
    VA
    Tractor
    JD 2305

    Default Re: rebuilding old ARPS 728 backhoe

    Just to update, I finally found a replacement retaining pin in JD parts catalog (m118630). Ordered 10 of them from our local dealer and have finally start reassembling. I also found the spring I mentioned above by walking into my local tractor repair store and asked if they had one close to it. Got six and this pistons are on and rock solid. I'll add more photos the farther I get along.
    Attached Thumbnails Attached Thumbnails -backhoe-may-2014-jpg  
    JD3720
    300cx FEL
    7' Front blade
    woodmaxx 8" PTO chipper
    Leinbach 7200JR PHD with 12" auger
    Betst 60" EFG155 flail mower
    Bark Buster log splitter
    47" snow blower

Similar Threads

  1. Subframe for ARPS 730 backhoe
    By Brad_Blazer in forum Build-It Yourself
    Replies: 23
    Last Post: 12-29-2012, 05:39 PM
  2. Pennsylvania for sale ARPS 80 3pt backhoe in PA
    By norville in forum Private Party Ads
    Replies: 6
    Last Post: 11-29-2012, 01:25 PM
  3. Buying Advice Arps Model 70 Backhoe
    By walterc in forum Buying/Pricing/Comparisons
    Replies: 0
    Last Post: 05-14-2010, 11:43 AM
  4. Backhoe Need Spec's for Arps 80 Backhoe
    By RickB in forum Attachments
    Replies: 2
    Last Post: 05-13-2009, 07:48 PM
  5. ARPS Backhoe
    By bendrewjr in forum Attachments
    Replies: 10
    Last Post: 06-18-2006, 08:14 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
© 2014 TractorByNet.com. TractorByNet is a registered trademark of IMC Digital Universe, Inc. Other trademarks on this page are the property of their respective owners.