Adapting the AN5301 flat nozzle to the 600CFM backpack blower

  • 3
  • Idea
  • Updated 4 weeks ago
  • Under Consideration
  • (Edited)
I, like others, didn’t notice the caveat that the nozzle doesn’t go with my new backpack blower. Since it was only $15, I decided to take a shot at making it work.

If you look at the business end of the backpack blower’s tube, it has a double rim around it forming a little valley that looked perfect for an attachment point. With a solid friction fit of the nozzle, the center of that valley is exactly half an inch from the round end of the nozzle.

Using a Wite-Out pen, I marked three spots around the nozzle, one on the mold seam directly oppposite the clip, and two more on either side of the clip to form a neat triangle. With a 5/32” needle-tip drill bit, and the nozzle stabilized around the end of a 2x4, I drilled three holes.





The 5/32” hole is the perfect size for coarse-thread self-tapping black computer case fan screws, which are designed to thread into holes in plastic and also have a flat tip to press against, rather than pierce, the valley at the end of the tube. It’s important not to crank them down too tight, to avoid stripping the holes in the nozzle. A bit loose may even be better, to make it easier to adjust the angle of the nozzle on the fly if needed.
.


The three screws snug down into the valley and hold the nozzle perfectly securely, making the nozzle ready to go blow like all get out in turbo mode. Now all I have to do is wait for the leaves to change color and fall... I suppose I can go blow some sticks and acorns around in the meantime.













Photo of Michael V. Pelletier

Posted 4 weeks ago

  • 3
Photo of SCDC

SCDC, Champion

  • 48,552 Points 20k badge 2x thumb
Hi Michael,

I don't think you will get the results you think with that nozzle.  These type of blowers don't use pressure as much as CFM to move air.  You will refine the airflow but not increase the intensity.  These nozzles are best used for "sweeping" debris off of concrete.

In the old days when blowers were designed for more pressure verses CFM, these type of nozzles increase the air velocity and were helpful, but that won't happen with modern blowers.

I give you 10 stars for a clean mod.
I see what you mean - I haven’t measured but I wouldn’t be surprised if both ends of the nozzle have a very similar area.

I find the flatter airflow from the nozzle useful for getting more air underneath damp matted layers to give them a lift and make them blowable - I have a forested section on my property so that’s not too uncommon a challenge.
Photo of SCDC

SCDC, Champion

  • 48,552 Points 20k badge 2x thumb
That damp layer is a killer for me as well!
Photo of walt

walt

  • 532 Points 500 badge 2x thumb
Nice work Michael! Good of you to pass on the idea to others.
Photo of giggleherz .

giggleherz .

  • 2,004 Points 2k badge 2x thumb
I like to remind people that the blower shaft fits perfectly inside a four inch dryer vent and a whole lot of money and time can be saved just by blowing the lint from your dryer hose.
Photo of SCDC

SCDC, Champion

  • 48,552 Points 20k badge 2x thumb
Awesome. I’ve got to do that