Komatsu D65S with tip bucket for "free"

[etd66ss]

Have you talked to a Komatsu dealer? You're going into to these old left for dead machines like a blind man trying to drive. Try to find out at least a little bit about them and how they operate before just jumping in guessing and hoping for the best

In my experience dealers never want to talk about these old machines, they want to sell you new stuff. I should be able to find a pdf operators manual somewhere online. So far I am seeing TO10 or TO30 can be used in the trans. Komatsu TO30 = CAT TO-4 from what I can tell...

 

[Welder Dave]

I think the 30 is the viscosity but an oil meeting Cat TO-4 would be good choice and a quality oil based on your findings. See if you can find a temperature range for the different viscosities and pick the one for your climate.

 

[etd66ss]

I can't seem to find an online pdf operators manual for this machine. Anyone have a manual, can you tell me the recommended oil for the trans, and also the final drives?

 

[etd66ss]

I put in 2 gallons of TO-4 into the trans and that was enough to get the oil level up on the dipstick. The oil is very dark, not a great sign.

Put in 2.5 gallons of gear oil in each final drive and that is still not enough to reach the level plug.

I think I'm going to try to put it into gear tomorrow and see if it moves. Though, the shift lever is very stiff. Need to look into how to free that up.

 

[James Sorochan]

I think if you can pull some floor plates there will be lot’s of grease fittings linking everything together.

 

[JimInOz]

Try TRADEBIT for PDF manuals.
I think there was a guy on FB recently talking about D66S Loaders.

 

[etd66ss]

I think if you can pull some floor plates there will be lot’s of grease fittings linking everything together.

I greased everything I could, but it did not help the shifting linkage. Turns out the bell crank on the top of the trans for the shift speed selection was really tight. Initially I could only move it back and forth what seemed like a few thousandths of an inch. So it wasn't the shaft tight in the trans cover, it was the mechanism inside. It took a LOT of prying back and forth to free it up. But first I had to scrap away soem of the hardest packed grease/dirt mixture I've ever faced.

Here's a vid: D65S-6 Shift Linkage

Here's a vid after I freed up the linkage: D65S-6 Freed up trans linkage

Of course the machine decided to blow a hyd hose for the bucket curl:



Luckily I can just not sure the curl for now and can still lift the loader. Hopefully tomorrow I can get it moving.

 

[etd66ss]

I got the machine moving today, both brakes/clutches seem to work:



I have to make one hose for it, think it uses SAE code 61 flange fittings, but I have to measure to make sure it's not some metric variant...

 

[etd66ss]

I'm having a hose made up for this machine for the bucket curl. Any idea on working pressure? 3000psi? 4000, 5000, 6000?

My default choice is 4000 psi.

 

[Welder Dave]

I'd guess 2 wire hose and 4000 PSI rated would be fine. A lot of 2 wire hose is rated higher than 4000 PSI anyways.