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H60E transmission problems


 
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Elanier81
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Joined: 23 Nov 2018
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PostPosted: Tue Apr 02, 2019 11:55 am    Post subject: H60E transmission problems Reply to specific post Reply with quote

Was wondering if anyone had any idea where I could get a O-ring kit # 142897H3 for a H60E PAYLOADER with S-700 International transmission
 
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Elanier81
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PostPosted: Tue Apr 02, 2019 12:03 pm    Post subject: Re: H60E transmission problems Reply to specific post Reply with quote

These are new pressure numbers for all gear positions. All pressures were taken at the same time by having different gauges on all clutch packs and torque converter at same time.




 
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Elanier81
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PostPosted: Tue Apr 02, 2019 12:04 pm    Post subject: Re: H60E transmission problems Reply to specific post Reply with quote

Sorry about posting picture of the pressures twice
 
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AJ.
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Joined: 20 Oct 2007
Posts: 2007
Location: UK

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PostPosted: Sat Apr 06, 2019 4:25 am    Post subject: Re: H60E transmission problems Reply to specific post Reply with quote

Can't help with the o'rings cept suggest matching them up at the hydraulic shop or obtain a box of assorted ones,the figures you posted do not mean anything to me,for the moment concentrate on first gear forward,find the port for the gauge for first gear,attach the gauge start the engine select first and note the pressure,fix the gauge to forward,start the engine and note the pressure,at this point the machine should have drive,if the pressure is zero and the pump is good there is a leak internally,the regulator valve could be leaking,the clutch cut-out dumping the oil or something else that is common to both clutch packs,I do not have a schematic of the oil path to be able to make a suggestion,its unlikely both the first and forward clutch would fail at the same time,esp when parked?.
AJ
 
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Elanier81
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PostPosted: Fri Apr 12, 2019 4:10 am    Post subject: Re: H60E transmission problems Reply to specific post Reply with quote

AJ,
across the top, forward, reverse, 1st,
2nd, 3rd, oil supply and torque converter.
Down the left side neutral, forward and
reverse for each gear. We had a seperate
gauge on all clutch packs, the oil supply
and the torque converter simultaneously.
We did this to confirm that we had stopped
all the leaks in the selection valve.
Before we replaced all the O-rings in the
selection valve we had oil bypassing and
going to multiple clutch packs at the same
time. Now, it appears that our leakage is
internal.

I did have a heavy equipment mechanic tell
me that I could be reading that good
pressure on third gear at the clutch pack
where the gauge is attached but still be
losing it internally behind that.

We are now looking at pulling the first
gear clutch pack which is outside of the
transmission and replacing the O-rings on
the end of the shaft where the oil supply
goes in to the shaft. And then we can also
see if the inner and outer seals on the
Piston itself are bad. If just the O-rings
on the end of the shaft are bad, we are
hoping that we can pull the cover plates
at the other clutch packs and replace the
O-rings on the end of the shaft where the
oil Supply goes into the shaft.

The mechanic also told me that changing
the fluid, which we have done, in an older
machine, can cause the old seals / O-rings
to not seal properly anymore.
Am I getting correct information from the
mechanic?

Also the top chart is at idle. The second
chart is at higher RPM which is what the
manuals tell you to do to check real
pressures. As you can see by the pressures
in 3rd gear it appears that it should be
running unless it is bypassing past the
pressure gauge, as the mechanic told me
could be happening?
 
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Elanier81
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PostPosted: Sun Jun 23, 2019 6:51 am    Post subject: Re: H60E transmission problems Reply to specific post Reply with quote

Pulled first gear clutch pack and piston
seals were shot, as in shredded. Friction
plates were also very worn so we are
replacing them also.
Question about repacking plates. There are
15 plates 14 friction plates and 14
Springs. I can get about 10 of each in the
housing before I am up above the splines
on the shaft. the friction plates have
teeth that line up with the shaft splines.
I cannot figure out how to press the other
ones down as I finish stacking them till I
can get the end cap on. Is there a special
tool or do I just need to have the last
ones lined up perfectly and slide in all
at once and compress to get the end cap
on?
 
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AJ.
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Joined: 20 Oct 2007
Posts: 2007
Location: UK

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PostPosted: Mon Jun 24, 2019 10:47 am    Post subject: Re: H60E transmission problems Reply to specific post Reply with quote

I don't know off hand what tools are required but surely you have a manual,those type jobs require a time served engineer that has years of experience,this business of DIY is hit and miss,why not get a heavy equipment mechanic or transmission shop to rebuild it for you,it would be money well spent.
AJ
 
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