Description

Agri-fab 45-0369 2007 User Manual

If you bought this 40-inch curved spike aerator and think you can just throw it together from memory, stop right there. I’ve seen more than one rig come into the shop with stripped threads, bent hitch arms, and missing hardware because somebody skipped the Agri-fab 45-0369 2007 User Manual. This is not a suggestion. It’s a 20-page factory document that walks you through every fastener, every spacer, and every safety step you need before you drag this thing behind a tractor. Ignore it and you’ll waste time, money, or worse — hurt yourself.

The manual opens with a hardware pack list that shows exactly what you get in the box: 23 hex bolts (5/16″ x 1″), 31 Nylock nuts (5/16″), 12 disk hubs, spacers, hitch pins, and cotter pins. You’ll find these on page 2 and 3 of the PDF. Lay every part out on a clean surface before you pick up a wrench. I’ve had guys call me because they had two bolts left over after assembly — that means something is loose, and that aerator will rattle apart in the first field pass.

Assembly Section: Laying Out the Carton Contents

Page 2 of the manual shows the carton contents diagram — tray, axle, 12 spike disks, end plates, axle support bracket, hitch arm mount brackets (three of them), lift handle, wheels, wheel mount bracket, hitch brackets, and hitch arms. You get a visual parts layout with part numbers. This is the kind of detail you need when you’re standing in the garage with a pile of metal. The assembly chapter itself covers step-by-step how to mount the axle, install the spike disks onto the hub, attach the hitch arms to the bracket, and connect the lift handle. Each step references specific hardware from the pack. Follow the sequence exactly — don’t torque the axle support bracket bolts until the wheels are aligned, or you’ll fight binding for the rest of the aerator’s life.

Safety Section: Not Optional

First chapter in the table of contents is Safety. Printed in English, Spanish, and French. It lists the rules for safe operation: never stand near the aerator when it’s moving, keep hands clear of the spike disks during transport, and always hitch to a tractor that’s rated for the load. If you don’t read this section, you have no business operating the machine. The manual’s warning triangles are there for a reason — I don’t want to hear about a foot getting caught under a spike disc because someone was in a hurry.

Maintenance Section: Keeping the Spikes Sharp

Proper maintenance extends the life of your aerator. The manual covers routine inspection of spike disks for wear, lubrication of the axle bushing, and tightening of all hardware after every 2-3 hours of use. Bolts work loose — especially the 5/16″ hex bolts that hold the spike disks in place. The manual says to check torque periodically, though it doesn’t list specific foot-pound values in the snippet. For a spike aerator, 20-25 ft-lbs on a 5/16″ Grade 5 bolt is typical, but you should verify with your own torque wrench and the OEM spec if available. If you need to order replacement spikes, the parts chapter gives you the part numbers.

Parts Section: Ordering Replacement Components

The last chapter is a master parts breakdown with exploded diagrams and a list of all components. Each part has a key letter and quantity. For example, the lift plate (Key P) and the grip (Key Q) are shown full size in the hardware pack illustration. If you crack a disk hub, you can cross-reference Key L — Disk Hub (12 per machine) — and order the exact replacement. The manual includes contact info for Agri-fab discount parts via mymowerparts.com. Keep this PDF handy when you call; you’ll save yourself a second phone call.

Does This Manual Cover the Operation Section?

Yes — the Operation chapter explains how to attach the aerator to your tractor’s hitch, adjust the depth of the spikes using the lift handle, and set the correct transport position. It tells you not to exceed 5 mph when aerating, and to avoid reversing with the spikes engaged. That’s the kind of detail that keeps the frame from bending. If you are not familiar with how to connect the hitch to your tractor’s Manual Transmission Manual Transmission, consult the tractor manual before you start. The aerator hitches via two hitch arms and a pin (supplied). Adjust the hitch brackets to match your tractor’s drawbar height.

For those working on similar equipment, check out the related manuals: Agri-fab 502492 2007 User Manual – Factory OEM Guide covers a different model but similar assembly logic. The Agri-Fab 45-0346 40″ Spike Aerator Manual is the predecessor to this unit — it shares many hardware sizes. And there’s the Agri-Fab 45-03451 2007 User Manual if you need a different configuration. Use the right manual for the right model — mixing them up will get you the wrong spacer length.

One more point on safety: when using a manual transmission tractor, always chock the wheels before unhitching. The Manual Transmission can roll unexpectedly if the parking brake fails. Lock the transmission in park or neutral with the brake set before you crawl under to disconnect the aerator hitch.

Frequently Asked Questions

Do I need special tools to assemble this aerator?

No. Standard socket set with 1/2″ and 9/16″ sockets, plus a torque wrench. A 3/8″ drive works fine for most bolts. You will need a hammer to seat the cotter pins on the axle. That’s it.

Can I use this manual for the 45-0346 model?

Don’t. The 45-0369 has a different hitch arm bracket count (3 vs 2 on the 45-0346) and the axle support bracket changed shape. Using the wrong manual will leave you with missing parts and incorrect torque references. Order the correct manual for your serial number. The parts list on page 2-3 won’t match, and you’ll end up with the wrong spacers.

This 20-page PDF is direct from the original 2007 print run — not a third-party scan, not a re-draw. You get the factory safety decals, the bilingual instructions (English, Spanish, French), and the actual hardware pack diagrams that match the parts bag in your box. If you want to assemble this aerator right the first time without guessing bolt sizes or skipping torque checks, you need the source. Access the Factory Manual.