animation issues

[Anonymous]

Hi!

I am trying to animate hydrocylinder.

I need to pull out white part for 10 mm.

It doesn't work.

I don't understand what is wrong.

Here are the settings:

The assembly is attached.

All ideas are appreciated 

:))

Many thanks

[JDMather · Accepted solution]

For 10mm extension set Start at 50mm and End at 40mm.

[Anonymous]

thanks!

@JDMather !

You are the best!