Unofficial Allis Homepage
Forum Home Forum Home > Allis Chalmers > Construction and other equipment
  New Posts New Posts
  FAQ FAQ  Forum Search   Events   Register Register  Login Login


Hd11E hydraulic problem

 Post Reply Post Reply
Author
Message
2wise4agm View Drop Down
Orange Level
Orange Level
Avatar

Joined: 19 Aug 2011
Location: Smithton, MO
Points: 537
Post Options Post Options   Thanks (0) Thanks(0)   Quote 2wise4agm Quote  Post ReplyReply Direct Link To This Post Topic: Hd11E hydraulic problem
    Posted: 30 Mar 2014 at 7:26pm
My hd11e developed a hydraulic issue today while pushing some brush. It belched all the hydraulic fluid out of it. It is building a LOT of pressure in the resivour. I took the grill covers off and do not see a vent anywhere. Is there supposed to be a vent or do I have bigger problems? Pressure developes in the tank after running just a few seconds.
Thanks guys
Back to Top
Sponsored Links


Back to Top
Lazyts View Drop Down
Orange Level
Orange Level


Joined: 05 Feb 2012
Location: Manitoba
Points: 612
Post Options Post Options   Thanks (0) Thanks(0)   Quote Lazyts Quote  Post ReplyReply Direct Link To This Post Posted: 31 Mar 2014 at 12:23pm
No vent that I know of.  Where did it blow the oil out?
Back to Top
2wise4agm View Drop Down
Orange Level
Orange Level
Avatar

Joined: 19 Aug 2011
Location: Smithton, MO
Points: 537
Post Options Post Options   Thanks (0) Thanks(0)   Quote 2wise4agm Quote  Post ReplyReply Direct Link To This Post Posted: 31 Mar 2014 at 12:29pm
Can't tell exactly. Oil was everywhere by the time I realized it. Looks like where the pump goes onto the tank or the shaft seal coming from the engine. If I run it without the cap on it, it doesn't leak anywhere. But I'm sure if I run it with it on its gonna blow something out. It builds a lot of pressure in there!
Back to Top
dustydoo View Drop Down
Bronze Level
Bronze Level


Joined: 22 Jan 2014
Location: erie pa
Points: 91
Post Options Post Options   Thanks (0) Thanks(0)   Quote dustydoo Quote  Post ReplyReply Direct Link To This Post Posted: 01 Apr 2014 at 2:28pm
If there like my hd6b with hard nose pump is inside casting, may have blown o ring going to the valve ??????
Back to Top
2wise4agm View Drop Down
Orange Level
Orange Level
Avatar

Joined: 19 Aug 2011
Location: Smithton, MO
Points: 537
Post Options Post Options   Thanks (0) Thanks(0)   Quote 2wise4agm Quote  Post ReplyReply Direct Link To This Post Posted: 02 Apr 2014 at 6:28am
Haven't messed with it much this week. Hopefully I'll get the xt out of the shop and get the dozer in there this weekend and start tearing into it.
Back to Top
Lazyts View Drop Down
Orange Level
Orange Level


Joined: 05 Feb 2012
Location: Manitoba
Points: 612
Post Options Post Options   Thanks (0) Thanks(0)   Quote Lazyts Quote  Post ReplyReply Direct Link To This Post Posted: 02 Apr 2014 at 10:03am
Yep, must have a blown seal somewhere...
Back to Top
2wise4agm View Drop Down
Orange Level
Orange Level
Avatar

Joined: 19 Aug 2011
Location: Smithton, MO
Points: 537
Post Options Post Options   Thanks (0) Thanks(0)   Quote 2wise4agm Quote  Post ReplyReply Direct Link To This Post Posted: 13 Apr 2014 at 2:53pm
Finally got it in the shop today and tore into it. It leaks where the control valve bolts onto the top of the tank. Would a leak here cause this thing to make pressure in the tank? I disassembled the entire control valve and don't see any obvious problems. Lots of hard and brittle O-rings, but none blown.

So now I'm not sure if I should take the large pump assembly off and look further, or reseal the valve assembly and try it. Does anyone have a schematic of the pump that would show me what's down in there that they would be willing to send me or even sell me? Its an HD11E serial number 10102.

Also is there a forum member that sells parts on here. I'm going to need a seal kit for the valve, and I would just as soon give my money to a forum member if possible.
Thanks in advance.   
Back to Top
Andrew_D View Drop Down
Silver Level
Silver Level


Joined: 28 May 2013
Location: Newdale,MB,Can
Points: 148
Post Options Post Options   Thanks (0) Thanks(0)   Quote Andrew_D Quote  Post ReplyReply Direct Link To This Post Posted: 13 Apr 2014 at 3:53pm
I have a book for the Allis built blade that's on my HD11B. It has a parts breakdown for the front-mount pump. Both with the integrated hyd. tank and the pump with the tank beside the driver.

Is that what you are looking for? It's in the shop, but I can try to sneak out there later tonight and grab it.

Andrew
Back to Top
2wise4agm View Drop Down
Orange Level
Orange Level
Avatar

Joined: 19 Aug 2011
Location: Smithton, MO
Points: 537
Post Options Post Options   Thanks (0) Thanks(0)   Quote 2wise4agm Quote  Post ReplyReply Direct Link To This Post Posted: 13 Apr 2014 at 3:56pm
Yeah. I have the front mounted tank and pump. I have a service and parts manual for the rest of the machine, but it has nothing on the hydraulic blade. Thanks in advance.
Back to Top
dustydoo View Drop Down
Bronze Level
Bronze Level


Joined: 22 Jan 2014
Location: erie pa
Points: 91
Post Options Post Options   Thanks (0) Thanks(0)   Quote dustydoo Quote  Post ReplyReply Direct Link To This Post Posted: 13 Apr 2014 at 8:41pm
I f there are orings that seal valve to internal pump that would be my guess
Back to Top
Andrew_D View Drop Down
Silver Level
Silver Level


Joined: 28 May 2013
Location: Newdale,MB,Can
Points: 148
Post Options Post Options   Thanks (0) Thanks(0)   Quote Andrew_D Quote  Post ReplyReply Direct Link To This Post Posted: 13 Apr 2014 at 10:21pm
OK, I have the manual scanned. 54 pages. It covers the 11GD (angle blade, hydraulic lift), 11BD (straight blade, hydraulic lift), 11GDC (angle blade, cable lift), 11BDC (straight blade, cable lift).

The hydraulic section includes both the complete front mount unit (pump, tank, valve all at the front) as well as the front mount pump with the tank and valve beside the operator.

It's a 12MB PDF file, so can't upload it here. If anyone wants it, send me a PM and I can email it.

Andrew


Edited by Andrew_D - 14 Apr 2014 at 12:41pm
Back to Top
Andrew_D View Drop Down
Silver Level
Silver Level


Joined: 28 May 2013
Location: Newdale,MB,Can
Points: 148
Post Options Post Options   Thanks (1) Thanks(1)   Quote Andrew_D Quote  Post ReplyReply Direct Link To This Post Posted: 14 Apr 2014 at 12:48pm
2wise4agm: Got your PM and emailed the PDF. Hopefully it helps!

Andrew

Back to Top
2wise4agm View Drop Down
Orange Level
Orange Level
Avatar

Joined: 19 Aug 2011
Location: Smithton, MO
Points: 537
Post Options Post Options   Thanks (0) Thanks(0)   Quote 2wise4agm Quote  Post ReplyReply Direct Link To This Post Posted: 23 Apr 2014 at 2:14pm
Ended up taking the pump the rest of the way out. I found that it had pushed the seal out of the pump input shaft. Disassembled the pump and found no other damage. Resealed the pump and the control valve and put it back together. Ran it for about an hour last night and all is well. No leaks and no more excess pressure in the tank. Thanks for the PDF diagrams Andrew. They greatly assisted me! You are definately one of the people that makes this forum great!!!
Back to Top
Andrew_D View Drop Down
Silver Level
Silver Level


Joined: 28 May 2013
Location: Newdale,MB,Can
Points: 148
Post Options Post Options   Thanks (0) Thanks(0)   Quote Andrew_D Quote  Post ReplyReply Direct Link To This Post Posted: 23 Apr 2014 at 6:05pm
Glad the PDF helped!

When I first saw that manual on eBay, I figured I'd get it since that was the blade I had. I didn't realize at the time that it included all the info on the hydraulic system as well.

Andrew



Edited by Andrew_D - 23 Apr 2014 at 6:06pm
Back to Top
 Post Reply Post Reply
  Share Topic   

Forum Jump Forum Permissions View Drop Down

Forum Software by Web Wiz Forums® version 11.10
Copyright ©2001-2017 Web Wiz Ltd.

This page was generated in 0.109 seconds.


Help Support the
Unofficial Allis Forum