Tractor & Farm Equipment FAQ: Buying, Maintaining, and Avoiding Costly Downtime

Most farm equipment questions are really about timing. Will that used tractor make it through the season? Can I get the part before planting? What happens if the seed planter fails the day the field is ready?

I handle parts and service at Bohn Equipment, an ag equipment dealer in the Midwest. In the last six years, I've coordinated 300+ rush orders—many of them with a 24-hour deadline attached. The pattern I keep seeing: people spend a lot of time researching what to buy, but not nearly enough checking what they already own. Here are the questions I get asked most, plus one I think you should be asking.

• What should I inspect before buying used tractor farm equipment?
• Farm machinery tractors: compact, utility, or row-crop—which one do you need?
• Are automatic seed planting machines worth the extra cost?
• When does a towable backhoe make more sense than a mini excavator?
• Is a manual seed planter ever the smarter buy?
• How often should a soil tiller machine be serviced?
• Why do so many planters and tillers fail in the first 10 acres?

What should I inspect before buying used tractor farm equipment?

A used tractor only looks cheap until the first repair bill. I'm not saying buy new—most farmers don't. But spend a couple of hours inspecting before you spend thousands, no matter how clean the paint is.

Check the expensive things: front axle/kingpins on a 4WD, hydraulic hoses and fittings, fuel system, PTO splines, and transmission oil for 'glitter.' Glitter is metal floating around, and metal floating around means a rebuild. Start it cold. Walk behind it and look for leaks. Run every remote at the same time. Actually, run them under load—that's where weak pumps show up.

In March 2024, a customer brought in a tractor he'd bought at auction for $18,500. Sounded fine at idle. Then we put it on a loader and opened the rear remotes: 800 psi instead of 2,500. He ended up spending $7,200 on hydraulics before spring. A $250 hydraulic test would've told him to walk away. That's the definition of paying more to save less.

Farm machinery tractors: compact, utility, or row-crop—which one do you actually need?

When people search 'farm machinery tractors,' they're usually asking about those three classes. Compact tractors run about 20–45 hp with a Category 1 hitch. Utility tractors go up to 90 hp or so, with more lift capacity and usually a Category 2 hitch. Row-crop tractors are the big ones with adjustable tread, high hydraulic flow, and the ability to plant in 12-row systems.

The biggest mistake I see is buying too small because it fits the budget today. A compact tractor can run a 5-foot rototiller, but it'll struggle with an 8-foot soil tiller or a 3-point backhoe. Horsepower matters, and so does hydraulic flow—that's the spec that never gets compared.

Also, get one with ROPS and a seatbelt, even if you're only on flat ground. According to the National Institute for Occupational Safety and Health (NIOSH/CDC), ROPS reduce tractor rollover deaths by about 70%. That's not a comfort feature; it's the difference between a bad day and a funeral.

Are automatic seed planting machines worth the extra cost?

For most commercial operations, yes. If you're planting 20 acres or more a season, an automatic seed planting machine pays for itself in seed savings and speed. Vacuum or air metering gets the spacing consistent, and consistent spacing means fewer gaps and less thinning later.

But 'automatic' doesn't mean set-and-forget. You still need to check seed depth, row spacing, and pounds per acre. According to Purdue University extension guides, uneven seeding depth is a classic cause of uneven emergence—and uneven emergence cuts yield before the plants are even visible.

My rule: if you buy one, buy a proper seed tube monitor and a pocket scale. Check 100 seeds in each row. The time it takes will save you way more than that in wasted seed. For anything under 5 acres? Skip the auto planter and buy manual. The machine's fixed costs don't make sense for a garden.

When does a towable backhoe make more sense than a mini excavator?

If you need to dig trenches, grub out stumps, or repair field tile, a towable backhoe is a solid middle ground. It's a trailer-mounted unit you pull with a truck or tractor, so you don't have to dedicate a trailer to it the way you would with a compact excavator. We've used one on emergency drainage jobs when the rental excavator couldn't arrive for two weeks.

The other advantage is cost. A new towable backhoe costs a fraction of a mini excavator, and it doesn't have the same depreciation hit if it sits in a shed for eight months. But be honest about your usage. A 12-inch boom on a towable unit isn't going to dig like a 7-ton excavator, and the hydraulics are slower. It's a utility tool, not an earthmover.

Check your tow vehicle capacity, too. Many units weigh over 3,000 pounds before you add a bucket. And before you buy, check parts availability. If the dealer says 'four to six weeks' for a common part, walk away. When it breaks at planting time, that's just a long wait for a paperweight.

Is a manual seed planter ever the smarter buy?

You'd think a manual seed planter is too old-school, but it's honestly the right tool for the right job. It's cheap, light, and dead simple. There's no battery, no hydraulic hose, no calibration chart to lose. For a vegetable garden, a small orchard, or reseeding a food plot, it's hard to beat.

The problem is scale. Buy a manual unit for a 40-acre field and you'll hate yourself by the end of the first row. It's the classic penny-wise, pound-foolish mistake. We saw a local farmer try to save $800 by going manual, then buy an automatic planter three weeks later because the hand-pushed seeder was eating whole days.

Bottom line: use a manual seed planter when you can park it in 10 minutes and finish the job before lunch. If it's going to take more than half a day, spend the extra money and save your back.

How often should a soil tiller machine be serviced?

At least once a year, before the season starts. Our shop rule is a 30-minute pre-season service: gearbox oil, blade bolts, PTO shaft U-joints, and belt/shield condition. If the machine sat in a shed all winter, give it an extra 15 minutes to deal with the mice and the rusted tines.

This is one of those places where prevention beats everything. A blade bolt that shears off can take the gearbox seal with it, and then you're not replacing a bolt—you're replacing a gearbox. A dry U-joint locks up mid-field, and a $20 grease gun trip turns into a $400 driveshaft.

I made a 12-point checklist after we had three tiller breakdowns in one season back in 2019. That checklist has saved our customers—and our shop—an enormous stack of repair bills. Five minutes of greasing, every spring. That's it.

Why do so many planters and tillers fail in the first 10 acres?

Here's the question people never ask until it's too late. Machines that sit for six months fail early because of neglect, not age. Dry hoses crack. Old seed plugs tubes. Grease dries up. Rodents nest in blower intakes. It all runs fine on the first pass, and then the first load breaks it.

A few springs ago—March 2024, to be exact—a farmer called at 7:30 the night before planting because his planter suddenly had no vacuum. We found a dried-out seed tube that a 10-minute inspection would have caught. We got him running by 11 pm, but only because we're local and answered the phone. That kind of luck isn't a strategy.

So add a 20-minute pre-season checklist to your routine. Replace cracked hoses, clean out old seed, lube everything with a zerk, and store a spare set of shear bolts in the cab. It's the cheapest insurance you'll ever buy, and it's exactly the kind of thing that separates a smooth spring from an emergency.