Setting up the Wörner quill

May 31, 2020 in machine overhauling, Wörner B13

The Wörner quill is again on the drilling press. After being completely cleaned and disassembled, the quill rack was touched up to correct the damage that probably was made while assembling the pinion some time ago. Main bearings were replaced by a new ones. Old ones have a suspicious mark that suggest they are no plain 6006 deep grove bearings. GMN redirected me to the spanish contact Berkomat and they concluded that class P4 6005 bearings would be the right replacement.

Blackening some steel parts

May 31, 2020 in machine overhauling, Wörner B13

Some of the parts of the Wörner B13 were originally blackened. Rust have ruined most of those finishings. Thus I was faced to polish them to clear metal or try to recover original black coating. I found interesting to experiment with those cold blackening solutions and give them a try. What follows is the resulting experience. The parts to be processed were: The screw plug of the quill retention. The handle and bearing support of the belt tensioning pinion.

Wörner B13 paint works (and III)

May 14, 2020 in machine overhauling, Wörner B13

Joan’s advices Final steps on paint works. I last post I wrote about the problems with the table lack: final layers suffered of cracking. After a talk with a Joan, who has a large experience as professional car painter and always has time to help a friend, he diagnosed the problem: layers incompatibility. He gave me a kinda of principles to follow when painting machines. I want to share then here:

Wörner B13 paint works (II)

May 3, 2020 in machine overhauling, Wörner B13

Painting works are coming to the end. Last days I finally got some lack cans to do the final coating. Not an easy task due to COVID'19 lock down. I sprayed most the prepared parts and this is the result: Overall, the finish quality is really good. The enamel used is of semi-gloss sheen and gives a really silky touch to the surface. As I mentioned in the previous post, the base suffered of cracking defects that worsened as the layers become drier (it lasts about three days to fully dry).

Wörner B13 main assemblies

April 29, 2020 in machine overhauling, Wörner B13

The Wörner B13 has a notable building quality. It’s not cheap machine at all. After the disassembly, al mechanical elements were cleaned of debris and this olde grease that forms a kind of hard lack with years. Surely, the machine was serviced before: there are traces of poor repairing and assembly. I’m not sure, however, that it was also cleaned and relubed. Grease looks very old in some bearings. What follows are some detailed pictures of the distinct assemblies after cleaning the parts.

Wörner B13 paint works (I)