Anyone know how to remove a track motor on a UHO 25/EX60-1View attachment 64948
There's a lot of corrosion there, 3 allen screws in the small cover and 6 more of the same on the main part, the banjo bolt and hydraulic pipes to the rear have nowhere to move to so I'm thinking I have to free off everything first, just hoping someone might have seen one taken off or a diagram of the parts assembly.Looks as though you need to split it 1st?
Our local hitachi dealer sent me parts diagrams when my dads ex30 had motor troubles.
Not be advertising the competition but you should get some help on here @ArthurLooks as though you need to split it 1st?
Our local hitachi dealer sent me parts diagrams when my dads ex30 had motor troubles.
There's a lot of corrosion there, 3 allen screws in the small cover and 6 more of the same on the main part, the banjo bolt and hydraulic pipes to the rear have nowhere to move to so I'm thinking I have to free off everything first, just hoping someone might have seen one taken off or a diagram of the parts assembly.
Seals won’t effect it being lazy,very rare to get a pair similar powered.
I’d just replace all the seals if the internals are good.
Just like your story, pissed out unknown to me until I lost all hydraulics and tracks, only took a few minutes going by the telltale oil, took the unit to a nearby repair place and they had the necessary seals, had to chuck in 60 litres of oil just to load and unload it as I had to move it from where it stopped, no help to you.Just to dig up an old thread, Arthur what was the problem with your track motor to start with and what was the fix ? I'm trying to figure out what my one needs.
And a wider question to anyone in the know of these.
My one started throwing oil out the radial seal between the sprocket and motor... No25 in the above drawing. Literally in the space of 3-4 mins it went from a trickle to loosing a good 10 litres, luckily it was very close to get it on the trailer.
So far iv only found a few knackered seals , little to no fillings , no wear in any of the bearings, could I be lucky with just a seal kit. I haven't removed the bearing nut as I need to make a tool to remove it but I don't think it will uncover any problems bar allowing me to replace the radial seal.
Now since the day I got the machine that motor was slightly lazy and was putting some oil into the reduction hub. What else should I be looking for in the line of wear that might be causing oil to fill the gear hub .
Any help / opinions welcome.
Cheers
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Yes see the bearing nut wasn't as tight as I would have expected, leaving the twin tapered bearings a bit loose.There’s something slack to allow that seal to nip.
It is one possibility that seen from searches on possible causes, I guess i won't be able to check that untill it's reassembled.Check your case drain pressure, if the seals in the distributor are leaking this will increase the case drain pressure and maybe the cause of the seals blowing.
I never heard of them, not a million miles from me either, I do generally get all the bits off MG , the lads are sound to deal with and always good for advise.Our ex60-2 here got the two track motors resealed by Vincent salmon (western hydraulics) in knock, they both had the exact same seal gone as yours, and they both also where like you explained, they where sound for the day then within about 10 minutes they where excessively leaking oil, Vincent Asked us at the time did we do any bog work with the machine, he reckoned that he seen a lot of machines come in with barbed wire and all sorts of stuff caught in around that seal causing it to rip out, I’ve have the old seals some where around here off ours, but I recall them looking worn very similar to your ones, if you need seals western hydraulics would more then likely have them on the shelf, or MG in swinford
I'd say only for I got a smell of HYD oil I wouldn't have noticed it either , but same as that took no length to drop it below the sight glass on the tank.Just like your story, pissed out unknown to me until I lost all hydraulics and tracks, only took a few minutes going by the telltale oil, took the unit to a nearby repair place and they had the necessary seals, had to chuck in 60 litres of oil just to load and unload it as I had to move it from where it stopped, no help to you.
Had forgotten all about that lad until I read this.Our ex60-2 here got the two track motors resealed by Vincent salmon (western hydraulics) in knock, they both had the exact same seal gone as yours, and they both also where like you explained, they where sound for the day then within about 10 minutes they where excessively leaking oil, Vincent Asked us at the time did we do any bog work with the machine, he reckoned that he seen a lot of machines come in with barbed wire and all sorts of stuff caught in around that seal causing it to rip out, I’ve have the old seals some where around here off ours, but I recall them looking worn very similar to your ones, if you need seals western hydraulics would more then likely have them on the shelf, or MG in swinford
Can be very odd at times, I think the man has that much work on that he forgets, unless you are on his case every single day of the week then he will forget about you, A bad business model I thinkHad forgotten all about that lad until I read this.
Bought a machine up that country from one of the dealers a few years back. Did a deal with him for a new saw, he was making them at the time, was going to go over and fit out the machine for any return pipes or whatever was needed all his suggestions. We were a month waiting for the machine as it was being serviced and sprayed and a few bits so plenty time for him to get it done. He never went near it. Wouldn't answer the phone or anything for the finish. Twas very strange. We bought a different saw after.