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I have an old UHO 83 digger. The problem is that when I walk the digger it moves about a metro and stops, when i release the lever and push it forward it will move again and then stop again until the lever is returned to neutral and pushed forward again it will not move. Also when I go to lift the main boom it does the same eg push the lever and the boom rises then stops, return the lever to neutral and pull back again and the boom rises then stops. This machine has twin hydraulic pumps so the problem does not occur with the functioning of the other rams.

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  • Cars & Trucks Master
  • 3,180 Answers

I used to know some one that had a hitachi. was always having problems with it not moving. if i remember right it was the brake leaking think its air system and it was just leak. he had it fixed and added an air line indicator fitted think the boom works on the same system. if i remember right there is a foot brake and a lock brake lock brakes hydraulic . and the normal braking. but in the event of the air brake falling the hydraulic brakes take over. but this is from memory and it was a long time ago you dont see meany round here any mor they all jcb's and other makes.

Posted on Mar 24, 2014

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6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 3 Answers

SOURCE: Front driver seat adjustments.

I just had this problem fixed with a Tech 2 tool in my '03 yukon xl denali. The seat has a control module underneath of it that controls the 2-position memory, the power seat functions, etc. It needed to be reprogrammed - about $200 at the dealership, or free if you 1) have a good relationship with your service manager, or 2) own or know someone with a Tech 2 tool.

At first I thought it was because I had a Canadian model truck (the headlight switch is stuck "on" at all times no matter what position it's in, and the rear air controls are in celcius and not farenheight).

I'm assuming the switch worked before, and you may have encountered some sort of electrical issue (like a dead battery, or you gave someone a jump, you have a bad ground, you just installed an aftermarket stereo, you used a computer tuner, etc.).

Hope this helps!

Posted on Dec 30, 2008

Just_Bobz
  • 448 Answers

SOURCE: 2004 Chevy Tahoe seat controls not working properly

Time to replace that switch. The rocker inside maybe coming apart. If you find this helpful, please post as such. TY

Posted on Jan 18, 2009

  • 5370 Answers

SOURCE: 2008 Ford Expedition - Drivers

The motor and gears in the track are getting stuck.Either a weak motor or gears stuck. Try this procedure as follows;--- Have somebody sit in the back and push the seat forwards at the frame while
you push the button forwards.Don't push at the headrest but as low as possible

To avoid getting stuck again don't put the seat all the way backwards, just
move it forwards ahead to get the tension of the track/motor.
-------- But if the seat get pushed forward but if its still doing the same then its weak motor and it has to be replaced.But if its not getting pushed forward to its last.Then its bent tracks from which the seat moves.The tracks needs to be checked from which the seat moves back and forth.
The owners manual says about power seats. "It states that if the power seat doesnt't work, put the seat back section of the seat down to it's lowest position a couple of times. This somehow resets the body module for the driver seat." ---------------- This should help.Thanks.Helpmech.

Posted on Mar 07, 2011

  • 5370 Answers

SOURCE: 05 grand cherokee power drivers

The seat switch needs to be tested.All the seat function is controlled by switch, but some time the connections gets loose in the switch, this causes the problem.--------- there is a procedure to test the switch and its connections, to confirm the problem.Click this link below and follow the procedure to test the switch and its connections:--- http://technoanswers.blogspot.com/2011/09/drivers-power-seat-will-move-up-and.html ----------- this will help.Thanks.Helpmech.

Posted on Sep 09, 2011

  • 1 Answer

SOURCE: 2005 rx8 clutch wont disengage

the rubber around the
piston are worn remove from gearbox and replace rubber seals

Posted on Apr 09, 2012

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