Welding Tips and Tricks

I recently purchased this machine and enjoy it quite a bit. This is the machine I learned on in school to run aluminum, SS , etc. I am quite comfortable with the controls and getting the machine to perform in several ways. I am now jumping into learning a pulse technique and it is working great turning on the pulse mode (top left button on machine) while leaving the wave on standard. What I can't find any information on is how to use the pulse wave selection (lower left on machine). When I turn this pulse wave on in conjunction with the pulse mode button, I get an arc that runs for a bit then just goes out. In order to start the arc again, I have to let off on the foot peddle then step on it again. Can anyone point me to info about this or shed some light on how the pulse wave should be used?
Thanks
Dan

victortechnologies.com/.../DocLib_6426...

could be wrong but I believe that is the spot timer.

The manual explains this. If you don't have one a PDF is available online.