What type of oil to use on a empisal d 270 and how put the oil

I apologize, but I do not have a manual for the Empisal Protea 2000 sewing machine. However, you may be able to find one online by searching for the specific model number, such as "Empisal Protea 2000 sewing machine manual" on a search engine. You can also check the official Empisal website, they might have a downloadable version of the manual.
Another option is to contact the manufacturer directly and ask if they can provide a manual or if they know where you can find one. They may also have information on how to troubleshoot and repair common issues with the machine.
If you are unable to find a manual for your specific model, you may want to consider searching for a manual for a similar model or for a general guide on using and maintaining a sewing machine of that type.

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

https://www.google.com/search?client=firefox-b-d&q=empisal+270d+hand+wheel+is+locked&spell=1&sa=X&ved=2ahUKEwjjmLuJ45_pAhXTVBUIHZSnAA4QBSgAegQIDRAn&biw=1269&bih=505

If it is a mechanical machine (not computerized), it probably needs a thorough cleaning and oiling.

Manual here:
http://www.empisal.co.za/wp-content/uploads/2016/05/DRESSMAKER-270.pdf

If it is a mechanical machine, you can apply 1-2 drops of good quality sewing machine oil or liquid Tri-Flow Synthetic Lube to any place where metal rubs against metal. AVOID belts, plastic gears, etc. Be sure to also move stitch selector lever and dial mechanisms.

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Tension on sergers will vary based on the type of stitch you want to create. For basic overlocking, the tensions are usually set at the midway point. However, every machine is different, so some tweaking will most likely be required to get the stitch where you want it.

Empisal S4D Instruction Manual

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You should follow the instructions in the user manual. Use oil recommended by the manufacturer. Other oils can damage your machine.

Manual EMPISAL MERCURY 404 OVERLOCKER Operating Instructions Service

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Consult your owner's manual maintenance section. Be SURE to clean the lint and thread pieces frequently (at least at the end of every sewing project) from your serger as this will help reduce wear and tear on your machine and make your sewing experience more pleasant. Use ONLY good quality sewing machine oil if the instructions include oiling procedures. Oil frequently to keep the machine operating at its premium level.

If you need an owner's manual, search the internet for:
Manufacturer + Model + the word "Manual"

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Industrial sewing machine oil is usually not brand specific but is not interchangeable with automotive motor oil or thinner lubricants. Do not use WD40 or similar type lubricants as a substitute! Check with a local sewing machine repair shop or order online from Amazon.com (search for industrial sewing machine oil) This type of oil should cost less than $15 for 16 oz (before shipping)