No manual for Keystone Cougar 2013 330RBK ~ not sure how to winterize.

I can offer some guidance on how you might be able to obtain a repair manual for your 2015 Keystone Cougar 33RES:

1. Manufacturer's Website: Check the official website of Keystone RV Company. They might provide resources, including owner's manuals and repair guides, for their RV models.
2. Authorized Dealers: Reach out to authorized Keystone dealerships. They might have access to official repair manuals or be able to guide you on how to obtain one.
3. Online RV Forums and Communities: Participate in online RV forums, communities, or discussion groups. Other Cougar owners might have shared or discussed repair manuals or maintenance tips.
4. Third-Party Manuals: Some companies specialize in producing aftermarket RV repair manuals. These manuals might provide general repair and maintenance information for various RV models, including the Keystone Cougar. Examples include Haynes or Chilton manuals.
5. RV Owner's Clubs: Joining an RV owner's club or association for Keystone Cougar owners could provide you with access to valuable resources, including repair manuals and advice from experienced owners.
6. Online Marketplaces: Websites like eBay or Amazon sometimes have repair manuals for specific RV models available for purchase.
7. Contact Keystone Support: Reach out to Keystone's customer support for information on how to obtain a repair manual for your specific model and year.

A Keystone Tech shows how

https://www.youtube.com/watch?v=rzwJ5uzSWhg

Other videos by owners

Contact Keystone direct

https://www.keystonerv.com/owners-manuals

https://www.google.com/search?q=wiring+diagram+for+my+2010+Cougar+29%27+fifth+wheel

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Keystone's have two water drains under the outside stairs unscrew those and most of the water will drain. once those have drained add your antifreeze to you fresh tank and run you pump. then make sure you add it to all drains. Do not for get to to unscrew you hot water drain. Very big socket.

Pull bottom plug out of hot water heater tank let all water drain. Then open all water tank drain valves and be sure your RV is tilted so it will drain towards the valve. Go in RV access water heater valves put it in bypass so no antifreeze can enter water heater tank. Pump RV antifreeze with hose provided into all water lines throughout RV by turning on your main water pump after you have stuck the bypass hose in a new and full antifreeze bottle, then flush toilet until red antifreeze comes out. Open all faucets one at a time until red antifreeze comes out. I use 3 gal but some only use one, the more the better it’s cheap at Walmart. Don’t forget to run outside shower until red antifreeze comes out also, very important or it will crack in the cold. Finally make sure black and grey tanks are empty and flushed at your last camp trip before winterizing. Pour antifreeze in toilet and all drains making sure first that black and grey tank shut off valves are pushed in and closed. Get a quality cover and store RV, it makes a huge difference on protecting roof and roofs lap sealant! All RV antifreeze is non toxic and you just drain it all at your first camp stop after winter! Note: don’t forget to put water heater ionizer drain plug back in wrapped with new white Teflon tape and take water heater valves out of bypass! Draw a diagram of regular mode and winter bypass mode so you don’t forget especially hot and cold water heater blender valve between the two MUST be shut off after you unwinterize
or you will cool your hot water unwanted and have no hot water to use! Happy Camping folks!

First is yours the five wheel? If it is on the drive side of the trailer find your take fill in port. " were you can carry fresh water". Now on the inside look for a vent. "On my RV the fill port is three feet away from the pump," it should be a 1 to 2 foot vent. take the four screws out and you should find your pump. They hide them good "so you can pay to have it done" so look very good. My pump is under living room bed. hope this helps

2014 !! See your dealer. The manual isn't a manual per se, but you should get a booklet of general instructions and a manual for all appliances.

Check your local RV dealer they should be able to solve your problem.