SKU: 92484158613
allis chalmers planter seed plates

allis chalmers planter seed plates Allis-Chalmers 73 and 74 Series Planting Units Manual

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Description

allis chalmers planter seed plates Allis-Chalmers 73 and 74 Series Planting Units ManualAllis Chalmers 73 and 74 Series Planting Units Operator's Manual This 108 page operator's manual is the original factory guide for the Allis Chalmers 73 and 74 Series planting units, covering setup, operation, field service, and adjustment. Delivered as a searchable digital PDF so you can zoom in on diagrams and print only the pages you need in the shop or field. About the Allis Chalmers 73 and 74 Series Planting Units Produced in the early to mid

Allis-Chalmers 73 and 74 Series Planting Units Operator's Manual

This 108-page operator's manual is the original factory guide for the Allis-Chalmers 73 and 74 Series planting units, covering setup, operation, field service, and adjustment. Delivered as a searchable digital PDF so you can zoom in on diagrams and print only the pages you need in the shop or field.

About the Allis-Chalmers 73 and 74 Series Planting Units

Produced in the early to mid 1970s, the 73 and 74 Series were Allis-Chalmers' row-crop planting units designed for toolbar-mounted planter configurations. Both units shared the same core seed metering system — horizontal plate design with interchangeable seed plates — but differed in their depth control: the 74 unit used depth bands on the opener, while the 73 relied on a depth skid. That single difference made the 74 better suited to consistent-depth planting in worked ground, while the 73 was the simpler, more adaptable unit. Both were capable of planting corn, cotton, beets, and other small seed crops with the appropriate plate and hopper configuration.

These units were built during the same era Allis-Chalmers was pushing hard into planter monitor technology, and the manual reflects that — covering the AC-1 non-counting and AC-3 counting monitor systems, console wiring, and sensor installation. If you're running original AC monitors on these units, this is the documentation you need.

What This Manual Covers

  • Setup and assembly — press wheel adjustments, gang arm brackets, parallel links, unit drive chain, and covering equipment installation for both 73 and 74 units
  • Seed metering and plate selection — seed hopper inspection, false ring setup, center bearing and cut-off tongue adjustment, and changing seed plates for corn, cotton, beet, and small seed crops
  • Plant population and spacing charts — factory reference tables for dialing in seed rate and row spacing across crop types
  • Depth control — depth band setup for 74 units, depth skid adjustment for 73 units, gauge wheel configuration, and weight transfer and down pressure spring settings
  • Herbicide and insecticide application — metering control setup, chemical rate calibration, metering gate slide settings, field operation, and hopper cleaning procedures
  • Planter monitor systems — full coverage of the AC-1 non-counting and AC-3 counting monitors, console display and wiring, battery connections, signal cable routing, sensor installation and servicing, and console tests for 4, 6, 8, and 12-row configurations
  • Field service and troubleshooting — diagnostic tips for both monitor models and photo-electric sensor servicing

Why This Manual Matters

  • Original factory seed plate charts — the correct plate numbers and population settings for each crop, not guesswork or aftermarket approximations
  • Monitor wiring and sensor diagrams — the AC-1 and AC-3 monitor systems are nearly impossible to troubleshoot without the original schematics, and generic wiring guides won't match the AC-specific harness routing
  • 73 vs. 74 specific procedures — depth skid setup for the 73 and depth band setup for the 74 are covered separately with the correct adjustment specs for each unit
  • Chemical application calibration — factory metering gate settings and application rate tables for herbicide and insecticide attachments, critical for accurate in-furrow treatment

Manual Code: 261571

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SKU: 92484158613

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KimberlyY
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★★★★★ 5
Uses same battery as the rest of my equipment
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Since I already have and like the Greenworks mower, string trimmer and blower it only made sense to get the edger. Even better that I didn’t need to buy more batteries. I tried another name brand electric edger and returned it for not holding a charge. This one works great! There’s charge left in the battery after everything has been edged. I was concerned how easy it would be to control but fell in love with it first time I used it. To use just pop the battery in, flip the thumb lever, squeeze and edge. Not as noisy as gas powered equipment and no cords to pull. Feels sturdy in my hands and a good weight that’s enough to not pop up if it hits something but not too much to be heavy to carry back to the shed.
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Reviewed in the United States on October 29, 2025
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Texas Gal
Massapequa, US
★★★★★ 5
First use was great!
I've used it just the one time today. I had previously "edged" with a string weedwhacker, so while the grass was cut back some, there wasn't a trench dug out. I did a gentle push and pull, taking on about 18" at a time to get a new trench dug next to the sidewalk edge. It did a great job! The entire unit was much heavier and sturdy looking than I was afraid it would be for the price, so pleasantly surprised. Assembly wasn't complicated, but it did take two of us to hold it steady because getting the screws to seat in the square hole and not have the cord in the way was a bit tricky. I'm a 70+ lady, not large and not athletic, but I was able to handle this edger with ease. Now, to see how long it lasts!
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Reviewed in the United States on July 11, 2025
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James E Morris
Grantham, US
★★★★★ 5
Not expensive
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Reviewed in the United States on April 27, 2026
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Katy
New York, US
★★★★★ 4
Great Yard Helper!
So easy to use and affordable! This edger is a great time saver, easy to operate, and relatively easy to adjust although you may need a pliers or screwdriver to help with the adjustment levels, but its not difficult. I would have given this 5 stars but just one thing that is a sticking point for me is I wish this had its own stand or hanger because of its odd shape, it doesn't necessarily balance upright too well. It’s long and the guide wheel in the front sticks out. So, it is always awkward to get it tidy in the garage when not in use. Now maybe this is what it's like for landscapers…I’m not a professional. Just a homeowner doing my own upkeep. With what this costs, I’ll figure it out, and is worth the money.
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Reviewed in the United States on December 30, 2024
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Dan Y
Waukegan, US
★★★★★ 5
Easy to use
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