Forums
New posts
Search forums
What's new
New posts
New media
New media comments
New profile posts
Latest activity
Media
New media
New comments
Search media
Members
Current visitors
New profile posts
Search profile posts
Log in
Register
What's new
Search
Search
Search titles and first posts only
Search titles only
By:
New posts
Search forums
Menu
Log in
Register
Install the app
Install
Visit our tractor and agricultural equipment communities:
Ingersoll Forum
Case IH Forum
Combine Forum
Hay Forum
JCB Forum
John Deere Forum
Kubota Forum
Mahindra Forum
Massey Ferguson Talk
New Holland Forum
Valtra Forum
Yanmar Forum
Zetor Forum
Farming Forum
Forums
Bobcat Skidsteer Forums
General Bobcat Skidsteer Forum
Attaching a 709 backhoe to a 843 Bobcat
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Help Support SkidSteer Forum:
Message
<blockquote data-quote="HanSolo" data-source="post: 66520" data-attributes="member: 7905"><p>First, I'm a novice welder and much of what your about to see will appear to be quite ugly (especially to expert welders). However, I learn quickly from my mistakes and appreciate helpful advise. So I started Thursday evening cutting the 2" square tube.</p><p><img src="http://i1336.photobucket.com/albums/o644/trscca12re/20130606_200619_zpsec6eadac.jpg" alt=" photo 20130606_200619_zpsec6eadac.jpg" class="fr-fic fr-dii fr-draggable " style="width: 754px; height: 565px" /></p><p>Then taking that to the bench, heating and bending.</p><p><img src="http://i1336.photobucket.com/albums/o644/trscca12re/20130606_201617_zpse6411826.jpg" alt=" photo 20130606_201617_zpse6411826.jpg" class="fr-fic fr-dii fr-draggable " style="width: 506px; height: 675px" /></p><p>That bend fractured and was only useful to keep the two segments aligned for welding. The next piece I actually just cut in half.</p><p>I proceded to weld those pieces and used the wedge as a stiffener.</p><p><img src="http://i1336.photobucket.com/albums/o644/trscca12re/20130608_071723_zpsb6418a98.jpg?t=1370812597" alt=" photo 20130608_071723_zpsb6418a98.jpg" class="fr-fic fr-dii fr-draggable " style="width: 754px; height: 565px" /></p><p>The position where these arms needed to be welded on the Backhoe attachment is obstructed by the operators footrest so using a mini-grinder (sorry, no cutting torch), I made notches.</p><p><img src="http://i1336.photobucket.com/albums/o644/trscca12re/20130608_083842_zps82d58774.jpg?t=1370812588" alt=" photo 20130608_083842_zps82d58774.jpg" class="fr-fic fr-dii fr-draggable " style="width: 754px; height: 565px" /></p><p>My first attempt at welding the arms was not so good. I wasn't using the correct rod at the right amperage and I didn't have a large enough clamp. I will show how the positioning turned out. It took several attempts to determine the exact placement using tack welds. To compound the difficulty, the boom and tilt cylinders leak down slowly as your aligning and measuring. Also, getting the 2" balls tightened requires some real gymnastics with a large socket wrench.</p><p><img src="http://i1336.photobucket.com/albums/o644/trscca12re/20130608_083851_zps529c13ac.jpg?t=1370812578" alt=" photo 20130608_083851_zps529c13ac.jpg" class="fr-fic fr-dii fr-draggable " style="width: 754px; height: 565px" /></p><p>So Saturday mornings's welding lasted about two bites with the hoe when the welds busted. Again, novice welder making mistakes. So, with renewed interest and vigor, I got up Sunday morning, purchased heavier rods and big clamps. This time I'm getting good penetration and much fatter beads. Everything lined up well and here's what I ended up with.</p><p><img src="http://i1336.photobucket.com/albums/o644/trscca12re/20130609_160041_zps2695ab1e.jpg?t=1370812547" alt=" photo 20130609_160041_zps2695ab1e.jpg" class="fr-fic fr-dii fr-draggable " style="width: 506px; height: 675px" /></p><p>And here's how it attaches.</p><p><img src="http://i1336.photobucket.com/albums/o644/trscca12re/20130609_155947_zpsc522ada4.jpg?t=1370812557" alt=" photo 20130609_155947_zpsc522ada4.jpg" class="fr-fic fr-dii fr-draggable " style="width: 754px; height: 565px" /></p><p>I was able to work the hoe along a fence line for a half hour or so and the welds are holding. I do think I'm going to reinforce the footrest area with some angle iron though. I think that will greatly increase the strenght. When your swinging the boom there's a lot of force pitching the attachment. I'll probably also add some gusset plates on the right angles of the arms too.</p><p><img src="http://i1336.photobucket.com/albums/o644/trscca12re/20130609_155907_zps91fb239d.jpg?t=1370812568" alt=" photo 20130609_155907_zps91fb239d.jpg" class="fr-fic fr-dii fr-draggable " style="width: 506px; height: 675px" /></p></blockquote><p></p>
[QUOTE="HanSolo, post: 66520, member: 7905"] First, I'm a novice welder and much of what your about to see will appear to be quite ugly (especially to expert welders). However, I learn quickly from my mistakes and appreciate helpful advise. So I started Thursday evening cutting the 2” square tube. [IMG width="754px" height="565px" alt=" photo 20130606_200619_zpsec6eadac.jpg"]http://i1336.photobucket.com/albums/o644/trscca12re/20130606_200619_zpsec6eadac.jpg[/IMG] Then taking that to the bench, heating and bending. [IMG width="506px" height="675px" alt=" photo 20130606_201617_zpse6411826.jpg"]http://i1336.photobucket.com/albums/o644/trscca12re/20130606_201617_zpse6411826.jpg[/IMG] That bend fractured and was only useful to keep the two segments aligned for welding. The next piece I actually just cut in half. I proceded to weld those pieces and used the wedge as a stiffener. [IMG width="754px" height="565px" alt=" photo 20130608_071723_zpsb6418a98.jpg"]http://i1336.photobucket.com/albums/o644/trscca12re/20130608_071723_zpsb6418a98.jpg?t=1370812597[/IMG] The position where these arms needed to be welded on the Backhoe attachment is obstructed by the operators footrest so using a mini-grinder (sorry, no cutting torch), I made notches. [IMG width="754px" height="565px" alt=" photo 20130608_083842_zps82d58774.jpg"]http://i1336.photobucket.com/albums/o644/trscca12re/20130608_083842_zps82d58774.jpg?t=1370812588[/IMG] My first attempt at welding the arms was not so good. I wasn't using the correct rod at the right amperage and I didn't have a large enough clamp. I will show how the positioning turned out. It took several attempts to determine the exact placement using tack welds. To compound the difficulty, the boom and tilt cylinders leak down slowly as your aligning and measuring. Also, getting the 2” balls tightened requires some real gymnastics with a large socket wrench. [IMG width="754px" height="565px" alt=" photo 20130608_083851_zps529c13ac.jpg"]http://i1336.photobucket.com/albums/o644/trscca12re/20130608_083851_zps529c13ac.jpg?t=1370812578[/IMG] So Saturday mornings's welding lasted about two bites with the hoe when the welds busted. Again, novice welder making mistakes. So, with renewed interest and vigor, I got up Sunday morning, purchased heavier rods and big clamps. This time I'm getting good penetration and much fatter beads. Everything lined up well and here's what I ended up with. [IMG width="506px" height="675px" alt=" photo 20130609_160041_zps2695ab1e.jpg"]http://i1336.photobucket.com/albums/o644/trscca12re/20130609_160041_zps2695ab1e.jpg?t=1370812547[/IMG] And here's how it attaches. [IMG width="754px" height="565px" alt=" photo 20130609_155947_zpsc522ada4.jpg"]http://i1336.photobucket.com/albums/o644/trscca12re/20130609_155947_zpsc522ada4.jpg?t=1370812557[/IMG] I was able to work the hoe along a fence line for a half hour or so and the welds are holding. I do think I'm going to reinforce the footrest area with some angle iron though. I think that will greatly increase the strenght. When your swinging the boom there's a lot of force pitching the attachment. I'll probably also add some gusset plates on the right angles of the arms too. [IMG width="506px" height="675px" alt=" photo 20130609_155907_zps91fb239d.jpg"]http://i1336.photobucket.com/albums/o644/trscca12re/20130609_155907_zps91fb239d.jpg?t=1370812568[/IMG] [/QUOTE]
Verification
Post reply
Forums
Bobcat Skidsteer Forums
General Bobcat Skidsteer Forum
Attaching a 709 backhoe to a 843 Bobcat
Top
