Cycle of purchase asset

I’m using ERPNext v12.
I’m running a manufacturing company. I’m confused about buying assets. Can anyone just tell me the buying assets cycle or steps?

  1. I have suppliers for assets.
  2. I have machines to produce products. And it has maintenance costs. How can I maintain this.
  3. I have to give payment via installment ( Suppose advance payment 30%, after delivery 70%) and direct while buying assets.

Can anyone just tell me the steps (like Create Supplier> create items>create assets> make purchase order etc). Please mention important fields while inputting data like bank accounts.