How to use spent grain dozer manual lifted?

There are some customers don’t know how to use the spent grain dozer manual lifted.
Let’s learn it together.

When mashing, the spent grain dozer is manual lifted, not effect the working of rake.
When letting the spent grain out, the spend grain doze will be put down.
And then you open the grain out door , open the rake, spent grain will be out automatic.
Help you save the manpower.
Please kindly check the picture.
There is a chain to lift the spent grain dozer.