Question about Electric Demolition Jackhammer

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Plug in the hammer and no response when you push the trigger

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To trouble shoot, easiest to hardest:
1. Check both brushes, they should be 1/4" long or more and evenly worn, the spring should push carbon firmly against armature. If there is a small pin pushing out of the center of the brush it is worn too far and needs to be replaced. The pin is designed to push excessively worn brushes off the armature so as not to damage it. >
2. Check for power at cord going into the switch with a multimeter, if 0V replace the cord, if 110V; push trigger and check for power coming out of the switch, if 0V replace the switch, if 110V >
3. If these are all OK you need to check the armature on a growler to see if it's OK.

Posted on Aug 23, 2010

  • slaves Sep 03, 2010

    Have same problem, sure brushes are worn down, can these be purchased any where?.



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Posted on Jan 02, 2017


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1 Answer

Cannot load staples

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The flat metal piece that the spring pushes down the rod, pushes against the staples.

Remove this spring mechanism, slide the staples down the rails. The staples will be in the position of an upside down U. Replace the spring mechanism, and lock it back into place. (Push in, pull up)

Should, your question be in reference to the fact that you have staples loaded, but upon pressing the trigger nothing comes out:

In the front of the staple gun, is a flat metal piece that pushes down on the staples. One staple at a time. The flat metal piece is shoved down by spring pressure. The spring pressure is applied to the flat metal piece each time you squeeze the trigger. (Flat metal piece = Hammer)

Sometimes, Two staples try to come out. When they do, this flat metal hammer is stuck up in the gun. To free the flat metal hammer, remove the spring mechanism out of the back of the staple gun. (The spring mechanism discussed above) Remove any staples in the gun.
Try to use a flat blade screwdriver, and see if you can shove the flat metal hammer in the front of the gun -> UP.
(DO NOT have the staple gun pointing at your face! DO NOT squeeze the trigger! DO NOT use excessive force)

If this method is of no avail for you, you have to disassemble the gun, and remove the metal hammer, and stuck staple/s.

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