We use him as needed to run deliveries for us

[sitifan]

We use him as needed to run deliveries for us, so he'll be happy for the work.
https://books.google.com.tw/books?i...6AEITzAE#v=onepage&q="run deliveries"&f=false

What does "as needed" mean in the above sentence?

 

[jutfrank]

when we need him

 

[GoesStation]

Instructions on prescription medicine often state something like "take one or two tablets every six hours as needed." That means you only take the medicine when you're having symptoms.

 

[sitifan]

when we need him

We use him as [he is] needed to run deliveries for us, so he'll be happy for the work.

Is the above sentence correct?​

 

[jutfrank]

No, but you seem to have understood correctly.

You could paraphrase as when he is needed. You can't use as in this paraphrase.