There's something uniquely satisfying about watching a New Holland Super 66 baler kick out a perfect square bale on a sunny afternoon. If you've ever spent time in a hay field, you know that sound—the rhythmic thump-chunk, thump-chunk of the plunger meeting the hay. It's a mechanical heartbeat that has defined small-farm life for decades. Even though we live in an era of massive round balers and high-tech GPS-guided tractors, these vintage machines still have a dedicated following, and for good reason.
The New Holland Super 66 baler wasn't just another piece of farm equipment when it hit the market in the 1950s; it was a bit of a revolution for the family farmer. Before this, baling was often a massive, multi-person production that required heavy, cumbersome machinery. The 66 series brought that power down to a size that a smaller tractor could handle, making it possible for a one or two-man crew to get the winter feed tucked away in the barn without losing their minds.
Why the "Super" Matters
You might wonder what actually makes it "Super" compared to the standard Model 66 that came before it. It wasn't just a marketing gimmick or a fancy new decal on the side of the tin. New Holland actually beefed up the internals. They improved the pick-up mechanism and refined the feeder system so it could handle heavier windrows without choking. If you've ever had to climb off a tractor to unclog a baler in 90-degree heat, you know exactly why those improvements were a big deal.
One of the coolest things about the New Holland Super 66 baler is how versatile it was regarding power. You could find them in two main flavors: PTO-driven or engine-driven. The engine-driven models usually sported a four-cylinder Wisconsin engine sitting right on top of the frame. This was a lifesaver for farmers who only had smaller, low-horsepower tractors. The engine did all the heavy lifting of the plunger and knotters, while the tractor just had to pull the weight. It's a loud, vibrating setup, but man, does it get the job done.
The Magic of the Knotters
If you ask any old-timer about their New Holland Super 66 baler, the conversation will eventually turn to the knotters. These are the mechanical brains of the operation. They have to time everything perfectly: grabbing the twine, wrapping it around the bale, tying a knot, cutting it, and holding the ends for the next one—all while the machine is moving and vibrating.
When they're dialed in, they're a work of art. But when they're grumpy? You'll be finding "confetti" all over your field. Most of the time, the issues come down to rust or old grease. These machines hate sitting out in the rain. If the bill hooks get a little bit of pitted rust on them, the twine won't slide off, and you'll end up with a "missed" bale. A little bit of steel wool and some fresh grease usually fixes most problems, which is the beauty of this older gear. You don't need a laptop to diagnose it; you just need a pair of pliers and a bit of patience.
Keeping the Machine Alive
Maintenance is the name of the game if you want to keep a New Holland Super 66 baler running into the next century. It's a machine made of chains, sprockets, and wooden slides. Yes, you read that right—wooden slides. The plunger on these balers often runs on hardwood blocks. It sounds primitive, but it works incredibly well to absorb the shock of the plunger hitting the hay. If those blocks get worn down or rot away from sitting in the damp, your plunger will start to slop around, and your bale shape will look like a loaf of bread that didn't rise.
Grease is your best friend. There are grease zerks hidden all over these things, some in places that seem intentionally designed to bark your knuckles. But if you take the twenty minutes to walk around with a grease gun every morning before hitting the field, the machine will treat you right. It's also worth keeping an eye on the shear bolts. These are the "fuses" of the mechanical world. If you hit a thick clump of hay or a stray branch, the bolt is designed to snap so you don't destroy the expensive gears. Always keep a handful of spares in the tractor toolbox; you'll thank me later.
Small Farm, Big Value
You might ask why anyone would bother with a New Holland Super 66 baler today when you could just buy a modern square baler. For one, cost is a huge factor. You can often pick up a 66 for a fraction of the price of a newer Model 311 or 315. For a hobby farmer with five or ten acres of grass, it's the perfect entry point.
Another reason is the size of the bales. Modern balers tend to make very dense, heavy bales. That's great for shipping, but if you're a horse owner or a small-scale sheep farmer, you might prefer a slightly lighter, "fluffier" bale that's easier to throw around by hand. The Super 66 is famous for making a very manageable bale that doesn't require a bodybuilder to stack in the loft.
Common Quirks and Fixes
Every old machine has its personality. The New Holland Super 66 baler is no different. One thing you'll notice is the "feeder fingers." Instead of an auger like newer balers, the 66 uses a set of metal fingers that sweep the hay from the pick-up into the bale chamber. It looks like a mechanical hand doing a rhythmic dance. Sometimes these fingers can get bent if they hit a rock, and they'll start hitting the side of the chamber. If you hear a rhythmic clack-clack-clack, stop immediately and check your timing!
Timing is everything. The relationship between the plunger and the needles is a delicate dance. If the timing chain jumps a tooth, the plunger can actually strike the needles as they come up to tie the bale. This usually ends in a very loud noise and a very expensive repair. Most owners learn to check the timing marks religiously. It's just part of the ritual of owning a piece of history.
The Joy of the Harvest
There's a specific smell that comes with using a New Holland Super 66 baler—a mix of dry orchard grass, old gear oil, and just a hint of exhaust. It's the smell of a job being done the right way. When you look back over your shoulder and see a straight line of rectangular bales dotting the field, there's a sense of pride that you just don't get with more automated equipment.
Sure, it might take a little longer. You might have to stop and adjust a tensioner or clear a knotter fluke once in a while. But these machines were built to be repaired, not replaced. In a world where everything feels disposable, the New Holland Super 66 baler stands as a testament to solid engineering and the enduring value of good iron. If you find one sitting in a barn, don't walk past it. With a little oil and some TLC, it'll probably still be making hay long after the newer stuff has been turned into scrap metal. It's not just a tool; it's a link to a simpler way of farming, and honestly, it's just plain fun to run.