Help Please: WMF 1000 pro air pump repair

[_kopi_luwak]

Good afternoon. Help me with some advice. I disassembled the milk air pump of the WMF 1000 coffee machine. I was distracted and didn't take a photo. What position should the grey gasket on the piston be in? face down or face up? see the pictures.

 

[Sunsys]

Do you still need help? I can take a look at my spare if you want...

 

[_kopi_luwak]

Do you still need help? I can take a look at my spare if you want...

Thank you very much. I found the answer on the manufacturer's website. The answer is as I expected. The correct option is to install the plate with the upper faces up. The correct installation is shown in the picture.

 

[_kopi_luwak]

wob-l-piston-pump

www.gardnerdenver.com

 

[alexbc]

Did your repair workout? Every Pump i opened was at the end more broken then before :-( Atm im doing experiments with chinese pumps.. Some work pretty good for 5 Euro ;-)

 

[_kopi_luwak]

Did your repair workout? Every Pump i opened was at the end more broken then before :-( Atm im doing experiments with chinese pumps.. Some work pretty good for 5 Euro ;-)

Yes, the pump works. In our country, a used pump costs $50 in coffee machine repair shops. where can I order such pumps in China? I saw some on aliexpress

 

[alexbc]

Mostly with the used i and other people dont had much luck

Yes their from Aliexpress but im still figuring out, which ones work good and bring enough pressure against the steam. Also a question is the lifetime and the mounting. But i will keep you posted, when i found a good model.

Alex

 

[_kopi_luwak]

Mostly with the used i and other people dont had much luck

Yes their from Aliexpress but im still figuring out, which ones work good and bring enough pressure against the steam. Also a question is the lifetime and the mounting. But i will keep you posted, when i found a good model.

Alex

There is an air flow restrictor in the pump in my coffee machine, I think in my case it will be a problem to choose another pump.

 

[alexbc]

U can connect that to another pump. Only the airflow level should be around the same. The consumer restrictor is 0,2 the Pro is 0,3