How to pull out the rod in a door closer by hand?

How to pull out the rod in a storm door closer by hand?

If you're having trouble releasing the piston or rod from your storm door closer, please don't try to pull out the rod by hand.

Here are some trouble shooting tips to pull the rod out of the storm door closer.

Instead, Install the jamb bracket, connect the storm door closer to it with a short pin, then hold on the tube and pull, the rod will be exposed easily. 

If you must do so, you could use two small screw drivers, insert one to the hole in the rod/piston, another at the other end of the door closer, then use your feet to hold on one, pull another one by hand.

Loosen the speed adjustment screw at other end of the door closer will speed up the return of the tube.