Adjust spreader opening. knob does not change opening size. Yard works 65 lb spreader

question edited for clarity.

Here are the wheel bushings / bearings

Yardworks® 85 lb. Capacity Tow Behind Broadcast ...

Menards https://www.menards.com > tools > atv-accessories > y...
These replacement axle bearing are for the Yardworks 85 lb. Capacity Tow Behind Broadcast Spreader: BS0001-N. Includes: (2) axle bearing.
US$19.99

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Hi Mike:
The setting will depend on the size of the weed & Feed pellets.
The package usually has setting instructions on it.

If all else fails, the rate is 1 lb per 250 square feet.
Mark out an area about 10 ft by 25 ft long.
The spreader cast is about 5 ft, so down and back should use 1 lb.
Set the spreader at a minimal rate and see how far 1 lb goes, then adjust the setting accordingly.

I am sorry that neither spreader performed as they should have. This is very concerning to us, and we would like to get more information about the spreaders, if you still have 1 the manufacture date would be most helpful to us. It sounds like you could possibly have an over-application of the product as well. If you could call us at 1-800-543-8873, we would be happy to discuss this with you. Stacey at Scotts.

Your AccuGreen 3000 Drop Spreader was calibrated at the factory. However, a spreader's calibration may change or slip over time or during periods of heavy use.

You may check the calibration of your Scotts Accugreen 3000 by first adjusting your micrometer setting to 6. Turn the spreader over so that you are looking at the outside of the bottom of the hopper. Use your foot to hold down the trigger (if your trigger has a locking mechanism you can lock it in place prior to turning upside down). With the micrometer set at 6 and the trigger squeezed against the handle, the front edge of the projecting ridge on the shut-off bar should be aligned with the calibration line located on the 2nd or 3rd tooth from the center. Some of the older AccuGreen 3000 Drop Spreader spreader models do not have a raised ridge. On these spreaders, line the front edge of the shut off bar to the calibration line.

To adjust the alignment, use a small wrench to turn the black calibration screw at the lower end of the control wire leading from the micrometer rate setting barrel. Adjust the screw until the calibration line and raised ridge or front edge of the shut-off bar meet. If you have any difficulty checking or adjusting the calibration, contact us and we will be happy to help walk you through the adjustment.

Again, thank you for taking the time to contact us and for your interest in Scotts. Please feel free to call us at 1(800)5438873 anytime we may be of assistance.

I have the same question, but have not found a direct answer. I have calculated an estimate setting of 4 or 5 for the speedygreen 2000. The Milky Spore is very simular to the fertilizer that I use. Milky spore says that 1lb covers a little over 300 square feet. My fertilizer says that at a setting of 4 it is spreading 2.6 lb per 1000 square feet (almost 3 lb per 1000 sq ft or 1 lb per 333 sq ft).
Now I may be totally off, but just bought the Milky Spore today and will apply tomorrow. I may look some more tonight to see if I can find an answer. I felt it was kind of bad that the back of the Milky Spore suggested only using a drop spreader!?

It did a great job on grubs in my yard but read the bag, it says what it will kill or contact Bayer.

Well, they represent the size of the opening through which the product falls before hitting the spinning spreader part. A larger opening allows more product though; a smaller opening allows less.

I don't know if these are standardized across makes (I don't think they are). The best thing you could do would be to look in the hardware section next time you're in town and set a display model to the setting called for by your product (Scotts always lists the settings for their spreaders on their product), and then eyeball the size opening you get, then approximate that on your machine when you return home.

Or you can just pick the middle setting and do a test run and see if you think more or less should be applied, then adjust accordingly.

I found the manual that came with the spreader.. recalibrated it and it works fine.

back yard fix
use the right size nail
use the right size split pin
use the right size bolt

Here ya go...

Tray 1: (standard) 16 lb. Bond – 80 lb. Cover (60 – 220 gsm), coated, Phaser High Resolution Photo Paper, labels, envelopes, business cards, Phaser Professional Solid Ink Transparencies, Phaser Weatherproof Paper, Phaser Postcards, Phaser Trifold Brochures. Media sizes: A/Letter, Legal, Executive, Statement, US Folio, A4, A5, A6, B5 JIS, B5 ISO, 3 5 in. Index Cards, custom sizes; Envelopes: #10 Commercial, DL, C5, #5 , #6 , Monarch, Booklet, Lee (A7), Choukei 3 Gou, Choukei 4 Gou, custom.
Tray 2: 525-sheet tray (standard) 16 lb. Bond – 28 lb. Cover (60 –122 gsm), coated, Phaser High Resolution Photo Paper, labels, envelopes, Phaser Professional Solid Ink Transparencies, Phaser Weatherproof Paper, Phaser Postcards,Phaser Trifold Brochures. Media sizes: A/Letter, Legal, Executive, Statement, US Folio, A4, B5 JIS, B5 ISO; Envelopes: #10 Commercial, DL, and C5.
Tray 3: 525-sheet Feeder (standard on DX) Same media weights and sizes as Tray 2.
Tray 4: 525-sheet Feeder (optional) Same media weights and sizes as Tray 2.