CATERPILLAR 390D LME 1:8

[Timberjack3000]

Hello everyone



As promised, there is now a video of the new status. As already described, the excavator has received the following changes:

- Working pressure 60bar optionally 70bar

- One hydraulic pump (IPZ2HR7) instead of 3 pumps

- A new valve block (prototype from Schwab Präzision GmbH)

- New lines and connections



The drive now has two brushless motors instead of brushed motors and an adapted gearbox for a higher speed.



I have to optimize the drive a bit again, I'm not completely satisfied with that. I am now very satisfied with the hydraulics. Really a lot of strength and still potential for more. I also really like the controllability. The valves can be controlled very sensitively and have correspondingly large cross-sections.



Have fun watching.



Greetings Andreas


https://youtu.be/YuSRnYf4BeY