There are a lot of ways in which you can go about earning a reasonable amount of money that you can put towards various expenses and the like. A big part of the reason why that is the case has to do with the fact that the world has changed and it has resulted in a situation wherein you no longer have to conform to the old fashioned jobs that people could conceive of in olden times in some way, shape or form.
Being able to write heavy equipment manuals is a skill that can net you a pretty solid income at any given point in time. This style of writing is called technical writing and it is in really high demand, so much so that you would be hard pressed to find a job that commands as much respect as this does outside of traditional professions. There is a very unique skillset that is associated with technical writing and it includes the concept of understanding what the customer wants as well as how the heavy equipment works so that these two can be combined.
The customer would need to have information presented to them in a way that is legible and incredibly easy to parse through, and that means that you need to find the intersection between technicality and readability. If you manage to do this, there is no end to how much you can gain from this profession, and the best thing about it is that you can work in a freelance capacity which means that you are free to work when you want and where you want without any kinds of restrictions getting in the way.