Gasoline pump- Mazda 626 Matsuri year 1993

Good night, greetings to all. I require your advice to guide me in the following please: I have a Mazda 626 Matsuri year 93 automatic, it has a failure in the gasoline pump, I am new to this car and the brand, therefore when looking for the gasoline pump under the rear seat I only meet the floating of the tank, I do not see where the pump is located, is it necessary that the tank I appreciate all the support they can give me about it ... I am urgent, I have the car out of service and I know that I must replace that piece but I do not find it, I have searched manuals, references, but apparently there is a wide variety of models of this car and I do not get the one that corresponds to me. Thanks good night ...

It is submerged in the tank and the floating is attached to it.

Jal ... Thanks for your answer.

Now the following happened to me: I change the bomb finally, we tried and is fine. But the car remained unpreply, I thought it was the reli, I already changed it ... and unfortunately, nothing, now I don't know where the fault comes from, I already check all the fuses and nothing, ... give to turn on but nothing stays ... I wait for your comments .. Thank you