I can't get the screws out to replace the belt on my carpt shampooer...

The belt is part of the pump that delivers the cleaning solution according to an unverified source.. You might query Hoover.

. https://www.amazon.com/Hoover-440005353-Original-Equipment-Manufacturer/dp/B00F9A4FJI

Also works with FH50252 Hoover Power Scrub Elite Pet.

https://www.youtube.com/watch?v=yEbRVwRhsPg

How to Replace a Hoover Shampooer Hose Pump Spin Scrub - YouTube which I am informed applies to your Hoover as well.
Sorry I cannot provide a more direct answer. Try Hoover customer service.

Question edited for clarity and typos.

Did you 'replace the belt 2 times' with a new one? If they stretch, they can come off.

https://www.google.com/search?q=belt+on+my+Bissell+Pro-Heat+Shampooer+for+the+pump+keeps+coming+off

..

From my memory of a Kirby I had in the early 80s the belt has a twist in it. It has do go on the right way. One way pulls it on, and the other throws it off due to the rotation of the motor shaft.

https://www.google.com/search?q=kirby+3cb+replace+belt

..

According to this site there is no belt!

http://www.searspartsdirect.com/partsdirect/user-manuals/24308/F5862900-Hoover-Parts-STEAM+VAC-UPRIGHT-manual?pathRender=fromManualTabPage

click here > http://www.goodvac.com/Articles.asp?ID=153 for full instructions on video and pictures

There are 6 screws on the hood, remove them. Unscrew the cap which holds the red x in place and remove. Gently pull up on the top housing and it will come off. Remove the 4 screws which are on the pump and slide the pump out, install belt and reinstall

Hello,
Your belt is not properly connected. Here is the instructions to properly install the belt on the main power nozzle. It works exactly the same way as the shampooer head, so this should be of help...

http://reviews.ebay.com/CHANGING-THE-BELT-ON-A-KIRBY-G3-G4-G5-GSIX-ULTIMATE-G_W0QQugidZ10000000003720039

Here is the instruction guide for the shampooer also. Hope this helps...

http://reviews.ebay.com/KIRBY-CARPET-SHAMPOOER-INSTRUCTIONS-MANUAL-DIRECTIONS_W0QQugidZ10000000004594992

Marci

There is a door on the side pop it off remove the old belt and simply slide the new belt on. Over the motor shaft first then the roller brush end.

Take off belt cover on the left side of the top cover, turn cleaner over, take out screw from red lock and remove, pull cap and brush roll out, unhook the cogged belt, then you can replace the pump belt thru that opening. Put belt over the pump pulley and stretched to go over the motor shaft. Then check the cogged belt and the cogged end of the pully to make sure that there are cogs, replace belt if there are cogss missing or belt is broke, if no cogs on the pulley, then you will have to replace the pump. Pulley only comes witht he pump.

With out seeing it, it will be hard to figure out what isn't right. Must be a different model then 1699. which model is it?