 O&K RH75A documentations |
ZM 15
Dabei seit: 18.02.2006
Name: Arne
Herkunft: Alsbach-Hähnlein
Alter: 60
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27.04.2021 19:59 |
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gumikutya
Dabei seit: 04.12.2013
Name: Viktor Borsi
Herkunft: Ungarn
Alter: 41
Themenstarter 
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28.04.2021 18:14 |
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gumikutya
Dabei seit: 04.12.2013
Name: Viktor Borsi
Herkunft: Ungarn
Alter: 41
Themenstarter
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29.04.2021 17:37 |
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gumikutya
Dabei seit: 04.12.2013
Name: Viktor Borsi
Herkunft: Ungarn
Alter: 41
Themenstarter
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30.04.2021 17:48 |
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M60
Dabei seit: 26.12.2006
Name: Christian
Herkunft: Landkreis Weilheim-Schongau
Alter: 71
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Hello Victor,
Thank you very much for sharing all these great documents and pictures !
Were there any RH75 located in Hungary ? Where from did you get your special interest in this type of O&K ? Where is the RH75 shown in the last pictures located ?
Best Regards from Upper Bavaria
Christian
__________________
Bitte Copyright beachten !
Es lebe der Seilbagger !
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30.04.2021 19:37 |
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TEREXGERTS8
Dabei seit: 29.12.2014
Name: Ger Spetgens
Herkunft: Deurne Niederlande
Alter: 62
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Hello Gumikutya , Victor ,
I want to join M60 in thanking you for sharing these magnificent pictures and information of the RH75 , very impressive to see the RH75 in comparison to the RH6 !! Also it is remarkable to see the design of the main boom with the top of the lift cylinders mounted inside the main boom instead of the mountings on each side of the main boom for the backhoe version , for the front shovel version also the lift cylinders for the main boom are mounted close to each other on the inside and the stick cylinders are mounted on the outside of the main boom and stick , which is just opposite of what became common and is common nowadays . It is obvious that engineers back in those days when O&K was developing this large excavator type were still experimenting in designing boom structures and finding out what would be the best way and position for mounting the hydraulic cylinders and distribute the massive loads which punish the boom structure and upper and under carriage of this massive excavator when the two Cummins diesel engines are pumping the hydraulic pressure to over 300 Bar !!
Thanks , Victor , and I hope there is more to come !
Greetings from Holland ,
TEREXGERTS8
__________________
TEREXGERTS8
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30.04.2021 22:53 |
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gumikutya
Dabei seit: 04.12.2013
Name: Viktor Borsi
Herkunft: Ungarn
Alter: 41
Themenstarter
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02.05.2021 17:51 |
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Mathias_71
Dabei seit: 25.02.2022
Name: Mathias
Herkunft: Sweden
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Hello Victor!
Sorry can’t help You with the hydraulic scheme…
but I would like to thank You for all the documentation
for the RH75A that You posted here. Just great:-)
Regarding the one on sale in UK 2014, it has a very
special cab, not the 75A nor 75C variant but something
in between, I think the machine looks much better with this cab.
Do You know from what year that machine
came? I would guess early 80s, like 82 or so,
because in 83 the RH120C came with the cab that
later also the RH75C have.
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01.03.2022 15:21 |
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gumikutya
Dabei seit: 04.12.2013
Name: Viktor Borsi
Herkunft: Ungarn
Alter: 41
Themenstarter
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Hello Mathias
Don’t worry for schematics, nobody can help me until today.
So, maybe this macnine was a special one.
Here are some datas about this old RH75A:
Production year: 1979
Working hours: 5239h (as you can see on pictures)
Two Cummins engines
Raised cab.
Main boom lenght: 10.75m
Dipper arm lenght: 4.27m
Special, ditch cleaning bucket.
Best regards,
Viktor
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17.04.2022 19:55 |
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Impressum
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