Backhoe attachments for 1988 Bobcat 843...

[inalaska]

I Have a Early 843 and thought a 909 would fit but it does not so I can only assume the only unit that fits is the 911.

Hi, Could you tell what was it that did not allow the 909 to fit your 843 ? Is it just the mounting arms being too short ? Just curious as I have an 843 with the Isuzu engine,and have a lead on a 909 attachment. Thanks

 

[Auggie]

Wow!!! looks good kinda, what I was thinking I was going to do, but got lucky and ended up with a 911, could you send pictures of the ball mounts I have not done that yet just wanted to see which holes and or is there a bracket needed?

Sorry @midwaycc , I didn't see this when you posted. Hope you figured it out. You can see the ball mount in one of my photos in a previous post. They're like balls on a hitch receiver but with a big hex base. I think they just bolt through. Let me know if you need a better photo

 

[Auggie]

Hi, Could you tell what was it that did not allow the 909 to fit your 843 ? Is it just the mounting arms being too short ? Just curious as I have an 843 with the Isuzu engine,and have a lead on a 909 attachment. Thanks

For me, the arms were too short (in height) and too far away from the balls. You can see the adjustment I had to make in order to make mine fit. I'm not sure I'd trust it on a full-time jobsite, but it seems fine so far. I'd say it was an intermediate-level welding job that took half a day for me. The 911 would've been preferable, but I'm in a remote area and the 909 came up for sale a couple hours away. Good luck

 

[midwaycc]

Hi, Could you tell what was it that did not allow the 909 to fit your 843 ? Is it just the mounting arms being too short ? Just curious as I have an 843 with the Isuzu engine,and have a lead on a 909 attachment. Thanks

I also have an 843, from the late 80"s maybe early 90's and I purchased the 909 as I was told it would fit, well it doesn't.
The only attachment that fits to the best of my knowledge, with no alterations to attachment or machine is a 911.
If you don't mind cutting and welding you can make the 909 fit but why?? just get the 911 hook it up and go, I did and glad I did.
It is larger and has better stabilizers, digs deeper, all around good!!
Good Luck

 

[CharlieNH]

To answer the question from above. The balls are to be fully engaged when the boom is all the way down. I remember this from the 1970’s and 1980’s when I would rent a bobcat with a backhoe attachment. This keeps all of the stress from the boom and transfer the energy to the frame of the bobcat, to save on wearing out the pins in the boom and tach plate. That should help.View attachment 3429

You guys have it easy compared to what have been working on over the last three days. Bought a 709 backhoe that was on a 2000 753 Bobcat last week and I am trying to get it to fit on a Thomas T133s. Have spent 20 hours cutting apart the brackets into individual parts. Then cutting, fitting, recutting, refitting over and over again I finally got the brackets to fit the Thomas. This was mostly 1” and 1/2” thick plates that needed to be cut and shaped, with all the holes that have to be hand drilled through the 1/2” thick side plates. Now that everything is fitted, brackets need to be removed and welded up 100% with my mig welder, cleaned up and reinstalled and hand drilled out to 5/8” holes for the bolts that came off the 753. When I looked up the price of the bracket kit from Bobcat, it was 1300.00 plus tax. I will NEVER buy anything directly from Bobcat for the backhoe. They want more than $750.00 for just seal kits for the cylinders and $1500.00 to replace the 18 hydraulic hoses that are 32 years old. Bobcat may be the largest manufacturer of skid steers, but way over charge for their parts. Even the decals for the 709 can be bought for less than 1/3 of the price Bobcat wants to charge for them. Sorry for the rant, guess I have never had to deal with Bobcat except for the renting of equipment over the last 45 years. I wish I only had the balls to deal with.
Be safe everyone.

I'm following up on the first part of an early comment of yours about avoiding stress on the boom and pins with the backhoe attachment. I just got a 911 to mount on my 843. If I understand the geometry right, it seems that once the arms are connected to the balls on the bobcat, it should not be possible to raise or lower the backhoe or even tilt the mount. Is that correct? The bottom of the backhoe would be off the ground at this point, so the machine could still be moved around. I wish I had the owners manual, but if you could clarify this, it would be a big help.








View attachment 3429

 

[CharlieNH]

I did purchase a 911 this past week, and it fit the machine perfect. so 909 is for sale.

I just got an old 911 for my 843. Can you tell me whether the pressure line from the bobcat goes on the top or bottom of the two ports at the far right end of the valve bank, assuming you have the earlier valve bank where the components are all bolted together, rather than the Husco one. Thanks for any help you can give me.