Question

We need to put our shoulders to the wheel if we want to finish this on time meaning

Answer 1

Yo!

Here's the answer! =)

'We need to put our shoulders to the wheel if we want to finish this on time' means that we have to start working hard upon the stuff we want to be completed.

Or,

Use your arms to work! Only then you can finish the job.

Hope it helps!

—TGA. =)

Answer 2

Hello :D

The phrase put our shoulders to the wheel   in The following sentence means ... "to get started with doing work "...or start doing a work someone has not started yet.   .

In this  sentence:

The speaker is telling his members(including him) that they need to start working now if they want to finish the work or given task on time.

Hope it helps:)