has been removed from the pump tube including the grip frame, deburr all edges in the front of the pump tube
and push the valve from behind with something that will not scratch the inside of the tube. a clean wooden
dowel works. I would clean and lightly oil the pump area in front of the tube before pushing it out also.
Careful with the safety spring and detent ball they fly out if great care is not taken when removing the grip
frame cover or grip frame with cover attached.
Tip: things don't bounce and roll and can be found on light colored terry cloth.
Its not as hard as it sounds....
I BRAKE FOR BISCUITS