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  Viewing User Profile for: SkidRoe
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Joined: 12-10-2009 09:07 AM
Last Login: 09-30-2014 06:51 AM
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Signature: 1992 Bobcat 440B - 20 hp Repower, wide tires, aux. hyd., BT hoe, auger, rototiller, buckets - 42" & 50" mat'l, tine, grapple; 1994 Bobcat 773C BOSS, material bucket, tine grapple, wood splitter, bale spear, forks
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 Post Statistics
SkidRoe has contributed to 956 out of 75,949 total posts (1.26% of total).
Most Recent Posts:
Re: Increasing aux. flow on 4XX series 9/29/2014 9:38:32 AM   (Total replies: 1)

The 463 already has the higher capacity pump and increased relief valve pressure of the S70, so that may help you make your choice.

I increased my flow slightly by fitting a 0.5” larger OD pulley when I repowered my 440B.  Combined with the fact that the Chinese Honda runs 400 rpm faster than the Kohler, I have picked up about a gallon per minute.

I have resisted the urge to tamper with my relief valve setting.  I am afraid the extra ...


Re: Increasing aux. flow on 4XX series 9/30/2014 6:49:14 AM   (Total replies: 0)

If memory serves me correctly, the 463/S70 flow about 10 gpm, so not a quantum leap in flow.  I don't think the lines on the older machines will cause a restiction issue, they are all 1/2“, so they could easily handle 15 gpm.

The big difference comes from the fact that the auxiliary hydraulics are running at 3000psi, versus the 1400psi of the 453 and older machines.

FWIW - I have had our wood splitter on the 440B before.  Yes, it is slower and less ...


Re: 8ft snow bucket 9/29/2014 9:49:10 AM   (Total replies: 1)

Nicely done.  Nothing like the satisfaction of building something yourself.  IMHO, fabrication therapy beats retail therapy any day!!

Cheers - SR


Re: Where to find part numbers 9/22/2014 9:57:03 AM   (Total replies: 1)

Link:

http://www.bobcat.com/partsandservice/genuine_parts

Click the upper left link that says “Go to Parts Catalog”.  Once it comes up, look up your machine.  Best to have your serial number handy, but it looks like there were no s/n breaks on the 722.

I think the head gasket is p/n 6512401, but double check it.

BTW - the Ford engine in your machine was used in early ...


Re: 743b restoration 9/10/2014 1:12:11 PM   (Total replies: 1)

Have a read of this:

http://www.skidsteerforum.com/DesktopDefault.aspx?tabid=54&frmView=ShowPost&PostID=2445

HTH - SR


Re: 743b restoration 9/10/2014 7:44:31 PM   (Total replies: 1)
Good looking machine, well done!! I have always had a soft spot for 743's.

Re: 743b restoration 9/12/2014 5:25:49 AM   (Total replies: 1)

It is not the pump, it is worn piston seals.  Best start by rebuilding the tilt cylinder, that will likely take care of your problem.

SR


Re: 743b restoration 9/15/2014 6:11:08 AM   (Total replies: 1)

Just to be totally clear, the pump plays no role in holding the bucket/boom in position:; that is all up to the cylinders and the control valve.

Excessive internal leakage in either of these will cause the cylinder(s) to drift at unacceptable rates.

Hope this helps - SR


Re: 4XX Aux Hydraulics Linkage 9/18/2014 9:46:50 AM   (Total replies: 1)

Sure, no problem, I can do that.  Just go into your forum profile and add an e-mail address that I can send it to.

Cheers - SR


Re: 4XX Aux Hydraulics Linkage 9/26/2014 9:25:07 AM   (Total replies: 0)

Hi Chowmein,

I e-mailed you the documents.  Let me know if they don't come through for any reason.

Yes, the post that you found is the one that I was refering to.  The part that made the original adapter fit a T85 was bolt on, and not used at all.  I welded the features to fit it to my 440b directly to the Bobtach assembly.

HTH - SR

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