904 Accumulator Spring

I'm not sure what that is. Could you please explain it better to me. Looking at it now. Thanks for the quick response.

The accumulator and spring are a cushioning device for 1-2 and 3-2 shifts and if the spring is removed for firmer shifts the accumulator should be blocked from moving.
The blocker can be anything from a section of tubing to a peice of 1/2 pipe.
The accumulator piston should be blocked in the down position.
There is a specific length it should be but I can't find it right at the moment.
Some block it up and some block it down.
B&M shows to block it down, but I have never seen it make a difference either way.