Mower blades stop after mower has been on for awhile

[lforbes]

I have a Huskee 54ich GT Supreme riding mower 2002 mower.

So when I start mowing the blades come on fine, but after 20 minutes or so my deck blades stop. I can turn on and off the PTO switch and they will turn back on for several seconds and then go back off.

Things I have tried.
1. Checked the oems from the clutch witch was 4.3 oems
2. Checked the battery voltage looked good.
3. Checked the PTO switch connection for heat damage and secure connection
4. Put dielectric grease on pto switch and clutch connection.

I was wondering if anyone could give me some suggestions on what this could be.
I am going to be including a video of this as well so you guys can see what is happening.

Thanks for any help you can provide.

 

[mechanic mark]

https://www.google.com/search?q=how...9i59l2j0l2.24889j0j4&sourceid=chrome&ie=UTF-8

watch youtube video's & check air gap at PTO clutch 3 places, disconnect battery ground or unplug spark plug wires for Safety!

 

[lforbes]

Thanks I will see check it out!