O&K RH75C Documentary 

That's a very good point lol 🤣

the internet killed all that....

You're welcome 😁

Very sad end to a great brand. Thanks

My pleasure and thank you! I'm glad you enjoy the videos :))

@MrMan5014 I totally agree with you, pertaining to the superb quality of O&K excavators. And let’s not forget that O&K built the giant RH-400 hydraulic shovel. That machine could actually compete with the massive rope shovels and the purchase cost for the mine owner was significantly less. The RH-400 was available with either diesel or electric power. I know O&K shipped the very first unit to the oil sands of Canada. I believe that first unit started working in 1996. Take Care.

Old girls or excavators 😅😅

Rugged looking machine and really nice looking condition for the year. And I concur with mrbluesky, must have had a caring operator”s”, even still has most of the paint on the counterweight, which is pretty rare for a machine of that vintage. Thanks Justin. 👍👍🇺🇸

You're welcome guys

Thank you friend! That means a lot and I appreciate it

It is and thank you!

When I first visited this machine in 2010, it was the primary digger. Since then, she has been retired as a backup for a newer Cat 5130. Parts availability is what kills these older machines despite their amazing reliability

Yes sir!

That is a grease gun hose reel and it gets fed by the green/white grease drum behind it. It's used for getting the zerk fittings that go to small stuff not handled by the central greasing system.

Thank you!

BlackPill is correct. That hose is primarily used for greasing the bucket pins. These older excavators did not have automatic lubrication on the buckets

In PA, we've always called this the "German" control setup lol

Manufacturers use the term backhoe.. even to this day..

@tomrogers9467 I’ll attempt to clear up any confusion about the terminology. Try to completely disregard the image of a front end loader/backhoe. That type of machine does not pertain to surface mining. Next, the RH-75C seen in this video is a backhoe and some people refer to it as a trackhoe. A front shovel has a much different front end attachment attached to the superstructure. The front shovel is not designed to dig deep. The geometry of the front attachment is such that the bucket will be crowded into the rock & dirt horizontally as the operator lifts upward and curls the bucket. If you Google O&K RH400 you will clearly understand exactly what I’m describing. The terms backhoe and front shovel are not interchangeable. However many people will use the term excavator and backhoe to mean the same type of machine.To really eliminate all confusion, I like to refer to front shovel machines as hydraulic front shovels. Keep in mind that there are rope shovels in the mining industry also. Rope shovels are the most powerful and durable machines in the industry.Some have a bucket capacity of 120 tons or more. The bucket movement when digging is very similar to that of a hydraulic front shovel.

So the machine itself is a hydraulic excavator, however when you get into bigger mining class machines where two front attachments are offered, manufactures tend to call them a "backhoe" or "front (face) shovel)". Now we can debate about what a "back hoe" truly is, however manufactures continue to call big mining excavators that to this day as a reference to the attachment, not the machine

@@PAmining Thanks for the clarification. And it does make sense, as the “backhoe” pulls inwards, or “back” towards the unit. Since a child, I’ve always loved heavy equipment. Thanks for showing us all the big toys most of us would never have the opportunity to get near. I guess at 71 I’m still living in Mike Mulligan days, LOL. Still have the book.

I'm my opinion, not a good design lol, BUT! This is why I love doing older hydraulic excavators, the different ideas and techniques utilized is awesome

Yes sir!

Now we’re talking, where’s the 2400 hiding?

That's a very good question. If I had to guess, it's for tractive effort, but I'm not 100% sure, maybe someone else can chime in