Also, pulling on it when it is in the concrete isn't the best practice as it damages the mechanism and can bend the tip. Just make the hole and lift straight up and move to another location. Then bring the bucket to scrape and move the large chunks.
Please, for the love of God, Place the Blade in the Proper Position when using the arm, with any attachments,... BEHIND YOU. Not only does it give you full motion/placement and view, it also gives you the Most Leverage on the tip of the arm. This is especially necessary when using the pecker. The blade is only supposed to be in front when you are using it to fill in the hole or trench, or smooth out dirt.
