Hi. I'm new. Last year I picked up a bradco 715 ser 7N147. It's complete without an owners manual. I've attached it to the tractor and had two new hydraulic hoses made up to plumb into the hydraulic valve block. That's where my problem is. I did hook them up and started the tractor and the blade would go left and that's all. Now it doesn't do anything. I cracked the lines on the attachments control valve and at a couple cylinders. Oil did come out. The attachment did sit for a number of years so air or water could be possibilities. Any advice is appreciated.
Bradco 715 front blade attachment
- Thread starter Joekelsch
- Start date
Russell King
Well-known member
Lifetime Member
Equipment
L185F, Modern Ag Competitor 4’ shredder, Rhino tiller, rear dirt scoop
Do you have the tractor operator’s manual to show you how to hook up hydraulic implements to the tractor? You may need to turn a valve (bolt head thing on block?) a certain direction?
And there seems to be a lot of hoses that aren’t connected to anything. What are they for? Is the three point lever fully down? That could be putting a relief valve into action if raised to full up.
And I think you may need a third tank return line from the valve to the tractor block BUT I am not 100% positive about that.
And there seems to be a lot of hoses that aren’t connected to anything. What are they for? Is the three point lever fully down? That could be putting a relief valve into action if raised to full up.
And I think you may need a third tank return line from the valve to the tractor block BUT I am not 100% positive about that.
I do have a manual for my tractor, kubota 2020 front blade manual and a manual for a front loader for my other tractor. The hydraulic block on this tractor is different than what's in the manual and what's on my other b8200.
The two ports I'm tied into seem to be just in and tank. There are only two loose lines from the attachment. They have female quick connects and I think they are remotes as they're long enough to go to the rear of the tractor.
I don't think I have enough pressure to run this attachment. I messed with the pressure knob and got nothing except for the three point moved quicker. I'm thinking I need a power beyond line. There are two ports on the rear of this. hydraulic block and a pipe plug on the very front.
The two ports I'm tied into seem to be just in and tank. There are only two loose lines from the attachment. They have female quick connects and I think they are remotes as they're long enough to go to the rear of the tractor.
I don't think I have enough pressure to run this attachment. I messed with the pressure knob and got nothing except for the three point moved quicker. I'm thinking I need a power beyond line. There are two ports on the rear of this. hydraulic block and a pipe plug on the very front.
TheOldHokie
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Lifetime Member
Equipment
L3901/LA525, B7200DT/B1630, G2160/RCK60, G2460/RCK60
Your two new hoses are connected to pressure out and tank return in the OEM hydraulic outlet block. Where do they go? Where is the control valve for the front blade?
Your tractor hydraulic system is essentially disabled with that plumbing.
Dan
Your tractor hydraulic system is essentially disabled with that plumbing.
Dan
Last edited:
In my original post there's a pic of the control valve on the attachment. The very top hose on that valve is connected to the top port on the tractor. The bottom hose on the tractor is connected to a hose that connects to the pipe fitting coming out of the bottom of the attachments control valve.
