Round Baler Maintenance

A round baler has many moving parts under heavy load, and most breakdowns trace back to missed grease, worn belts or a plugged pickup. A steady routine keeps it in the field.

Key points

Do a walk-around and grease before each baling day, with the key out.
Follow the manual's grease list and use the grease it specifies.
Replace worn belts and chains before harvest, not during it.
Clear plugs only when everything is shut off and fully stopped.
Never check for hydraulic leaks with your hands.

What should you check before every baling day?

Shut off the tractor, set the brake, remove the key and make sure the baler is fully stopped. Walk around it. Look at belts or chains, the pickup, guards and shields, the driveline, the tailgate latch and hydraulic hoses.

Grease every point the manual lists with the grease it specifies. Many balers have a long list of fittings, and the ones you skip are usually the ones that fail first. A printed grease chart stuck inside the shop door helps. Check tire condition and wheel bolts too. A baler carries a lot of weight, and a failed tire in a muddy field is a long afternoon.

Mice and rodents love baler chaff, and they chew wire, hoses and wrap. Seal up what you can when you store it. A quick look for nests in the spring prevents electrical and hydraulic damage.

How often should you grease a round baler?

Greasing intervals depend on the model and the conditions, so follow the operator's manual. Dusty, hot, heavy-crop days are harder on bearings and chains. Many owners grease more often than the minimum in those conditions.

Wipe fittings clean before you pump grease, and replace any fitting that is clogged or missing. Watch for bearings that run hot or noisy, which usually means grease did not get where it was supposed to go.

How do you keep belts or chains in good shape?

Inspect belts for cracking, fraying, loose lacing or uneven wear. Tracking problems can chew an edge. Chains should be clean, lubricated per the manual and tensioned as specified. Do not stretch the chain by running it dry and loose.

Follow the manufacturer's directions for tension and replacement. If a belt is damaged, replacing it before the season costs less than a breakdown at harvest. See the separate article on baler belt maintenance for more detail.

Keep a spare belt lacing kit, pickup tines and a few common bolts in your shop. A short trip to the parts shelf is much better than a trip to town during a good baling day.

What causes plugs and pickup problems?

The pickup lifts hay off the ground and feeds it to the bale chamber. Bent or missing tines, a pickup set too low or too high, and wet or heavy windrows can cause plugging or leaf loss. Check tine condition and pickup height each day.

If the baler plugs, stop the PTO, shut off the engine, remove the key and wait until everything stops before clearing it. Never reach into a pickup, rolls or a bale chamber with anything running or with the tailgate unsupported.

Replace bent or broken tines
Set pickup height to follow ground without digging
Match windrow size to baler capacity
Keep windrow shape even for even bales

How do you care for net wrap and twine systems?

Check the net wrap or twine feed path for wear, rough spots and debris. Keep cutting knives sharp and the roll holders free. Store net and twine away from sun and moisture because they weaken with age and exposure.

If wrap is not feeding or cutting cleanly, look at tension, knife condition and the path before changing anything else. Use the net or twine type the manual allows for your baler.

How should you store a round baler and when should you call for help?

Clean out chaff and crop residue, which hold moisture and attract rodents. Grease all fittings, check belts and chains, and lower or support the baler as the manual describes. Store it under cover if you can, and order parts in the off season.

Call a qualified mechanic or the dealer for hydraulic problems, structural cracks, gearbox noise, tailgate cylinders that creep and any electrical or monitor faults you cannot trace. Do not check hydraulic leaks with your hands because fluid under pressure can penetrate skin.

What mistakes shorten a round baler's life?

Skipped grease, overloaded bale chambers, wet hay that packs heavy, and running with a loose or worn belt or chain are the common ones. Another is ignoring small noises. A bearing that squeals today is a seized bearing and a bent shaft next week.

Keep a notebook of what you replaced and when. Over a few seasons you will see which parts wear first on your baler in your fields, and you can stock them before they fail.

When to get help: Hydraulic leaks, tailgate cylinder problems, cracked frames and monitor faults are jobs for the dealer service department or a qualified mechanic. Follow the manufacturer's manual for fluids, tension and procedures.

Sources and further reading

Organization homepages are linked so you can search them for current guidance on this topic.

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