01.07.2019
The work continues to progress.
The counter weights we have drawn to match the shots on the vehicle and lasers made of 12mm stainless steel.
![](https://www.der-getriebedoktor.de/media/image/fb/f0/bb/20190716_215949.jpg)
We also already revised the support. The nut in the upper end of the supports are now secured against being pushed out.
![](https://www.der-getriebedoktor.de/media/image/25/7f/ae/20190717_143537.jpg)
After that we did the hydraulics of the superstructure. The hydraulic tank used by Grumalu had a much too small volume and was therefore burst during retraction of the lifting cylinder.
We have designed a new hydraulic tank that fits exactly in the available space. This tank we made of stainless steel and additionally replaced the hydraulic pump.
![](https://www.der-getriebedoktor.de/media/image/c5/ab/c4/20190716_220110.jpg)
![](https://www.der-getriebedoktor.de/media/image/43/52/ae/20190716_220150.jpg)
![](https://www.der-getriebedoktor.de/media/image/da/22/98/20190717_181901.jpg)
Now the lifting operation of the crane works flawlessly:
Something is also happening in the crane cab, the interior is already constructed and 3D printed.
![](https://www.der-getriebedoktor.de/media/image/af/bf/34/Kabineneinsatz.jpg)
We have created a little space under the seat, so that we can hide the sound module in the cabin under the seat.
To be continued!