Re: Changing Hydraulic Oil
 

I just attach two long hoses to input and out put- run it dry then run some clean fluid into it and just flush it out..then fill the tank to proper level and done!

Re: Changing Hydraulic Oil
 

Thanks for posting, it reminds me I should do mine again. Oil is cheap compared to a pump and cylinders.
I made a video the last time I changed the fluid in my 4200. Gonna do it the same way, went well last time. And the leak on the bucket cylinder was the fitting, not the rod seal:)

http://youtu.be/0PoraystMpo

Re: Changing Hydraulic Oil
 

Thanks!I found threading long tubes onto input and output made it even faster just ran it dry into a can then ran clean oil in and old into the can for a bit until all flushed out- then as oil was in all cylinders just need to fill tank. But either way I find the easier I make it on myself the more I do it:)

Re: Changing Hydraulic Oil
 

Good instructive video by mario, thanks

I have changed mine several times already, but never knew the blue plunger was a valve opening for draining.

David

Re: Changing Hydraulic Oil
 

Actually, I use the valve for filling and that way never spill a drop. To drain I remove the entire fitting and just pour out.

Something I really don't like about the tank they use. No sight glass and absolutely no way to get inside and clean it out proper.
At some point I'd like to get a new tank made proper. For now, if there is any metal in the tank, it's sitting in the bottom and not going anywhere I'd suspect.

Re: Changing Hydraulic Oil
 

:eek: run it dry?.....that's the part I don't like doing.:cop:;)

Re: Changing Hydraulic Oil
 

Just real quick to drain out the tank dry and the second that's done I flush
new oil in and out..though maybe a better way..just drain the tank aside..then flush new oil though cylinders then fill tank back. Yes I may do that for a try:)

Re: Changing Hydraulic Oil
 

I had seen this thread before I bought my excavator, and I was alarmed by the darkened oil coming out (contaminated with metallic wear particles) that seems to be accepted as normal in these small machines. I also read in a different thread that someone here has been using 'whatever oil he has on hand for his full-size machines' with no ill effects. So I've decided to follow that advice. I'm using John Deere Hy-Gard, since there is always a drum or two of it around here for my full size machines. It may be a little heavy for these tiny machines, but it has nearly the best, if not THE best anti-wear properties of any hydraulic oil you can buy. So we'll see how it looks after I get some hours on this thing and do the first oil change...

Jon

Re: Changing Hydraulic Oil
 

How did the JD Hydro oil work out for you? Inquiring minds would like to know.

Re: Changing Hydraulic Oil
 

What type of oil would you recommend for my wedico cat740. Uses the leimbach pump setup. Wont be using it below 40f deg. Thanks.

Re: Changing Hydraulic Oil
 

I use Mobil hydraul 50, it's 10W hyd oil, all my models use same oil.

Re: Changing Hydraulic Oil
 

Hello
I’m awaiting delivery of hydraulic conversion kit for my Top Race tr-211m excavator as well as another Ive ordered. Can anyone tell me as to the type of hydraulic fluid these require as well as where to purchase??
Thanks very much for any suggestions