Forage Harvester Cleanup and Storage After Silage Season
10/28/2026
The last field is chopped, and silage season is officially over. But if you haven’t cleaned your harvester yet, there’s still work to do. After weeks of chopping, it’s likely caked with crop residue and dirt. Sending it straight to storage can lead to problems down the road.
That buildup does more than make your machine look bad. Leftover crop material attracts rodents, which can chew through wiring and other electrical parts. Worn parts cause trouble too. They slow crop flow, so the machine has to work harder and use more horsepower to keep up. Time spent on cleanup and maintenance now pays off when next season starts. Here’s what you need to do to make sure your equipment rests easy.
The short version: Start by walking around your harvester to look for leaks and damage. Grease it, wash it, and grease it again. Then check and change fluids, treat the fuel, and inspect high-wear parts like knives, belts, and chains. Finish by servicing the battery, inflating the tires, and storing the machine indoors.
Before you wash anything, walk around the harvester and look for problems. A dirty machine actually makes this step easier. Oil and hydraulic leaks leave wet, dark stains in the dust, and a pressure washer will wipe that evidence away.
Look for:
If you kept notes during the season about odd noises, vibrations, or warning lights, pull those out now too. Write down everything you find so you don't forget it by spring.
Greasing twice may seem like extra work, but each round has a job. Greasing before you wash packs bearings with fresh grease, which helps keep water out while you spray. Greasing after you wash pushes out any moisture that made it in.
Water that stays in grease breaks it down over time. That can lead to bearing failure if you don't add fresh grease. Check your operator's manual for every grease point and the right type of grease for your machine.
A full cleaning removes the crop residue that holds moisture, causes rust, and attracts pests. Work through these steps in order.
Start with compressed air. Blowing off dry crop material first means less mud to scrub once you add water. Pay close attention to the radiator and cooling package, where chaff can pack in tight.
Crop builds up behind shields and in tight spaces around the feed rolls, cutterhead, kernel processor, and blower. Open or remove shields so you can reach these areas. Keep track of the hardware, and put every shield back in place before you run the machine again.
Wash the outside of the harvester with a hose or pressure washer. Keep the spray away from bearings, seals, and electrical connections. High-pressure water can force its way past seals and into places it shouldn't go. Let the machine dry completely before you park it.
Dirt that packs into pulley grooves can throw a pulley off balance. That imbalance causes vibration, which wears down belts and bearings. Take a few extra minutes to wash out each pulley.
Leftover inoculant can clog hoses, filters, and nozzles over the winter. Getting your inoculant applicator ready for storage only takes a few steps:
Vacuum the floor and seats, and wipe down surfaces. Crumbs and dust give rodents one more reason to move in.
Dirty fluids that sit all winter can cause damage you won't see until next season. Use quality fluids that meet the specs in your operator's manual.
Add a diesel fuel stabilizer, following the directions on the label. Top off the tank, then run the engine for a few minutes so treated fuel reaches the whole fuel system. A full tank leaves less room for condensation, which helps keep water out of your fuel.
Safety first: Before you reach into the machine, shut off the engine and remove the key. Wait for the cutterhead and all other moving parts to come to a complete stop. Support the header before working near or under it.
With the harvester clean, it's much easier to spot wear. Take a close look at:
Add what you find here to the notes from your walk-around. Now you have a complete off-season repair list. Ordering parts over the winter is easier than scrambling the week before harvest. Booking shop time early also gives you a better shot at getting your machine back on schedule.
If you'd rather have a trained technician take a look, many dealers offer off-season inspections. While your harvester is in the shop, ask about available software updates too.
Clean the battery terminals and fully charge the battery. Then disconnect it or hook it up to a battery maintainer. If you don't use a maintainer, plan to recharge the battery about every six weeks through the off-season. Cold weather drains batteries faster, so this step matters even more in northern areas.
Inflate the tires to the pressure listed in your operator's manual. Check them once or twice over the winter. Tires that sit low for months can develop flat spots or crack along the sidewalls.
A dry building protects your harvester from rain, snow and sun. If you don't have shed space, use a breathable cover. Set rodent deterrents in the cab and around the machine, and check them throughout the winter. While you're at it, touch up any scratched paint to help stop rust before it starts.
A few hours of cleanup now can save you a lot of downtime when the crop is ready next year. If you need parts or want our technicians to inspect your harvester this winter, contact your nearest SNPartners location. We're here to help you head into next season ready to chop.
Start by blowing off loose crop material with compressed air, especially around the radiator. Open or remove shields to reach buildup around the feed rolls, cutterhead, kernel processor and blower. Then wash the machine, keeping the spray away from bearings and seals. Clean out the pulley grooves, rinse the inoculant applicator, and let everything dry before storage.
Greasing before washing packs bearings with fresh grease, which helps keep water out while you spray. Greasing after washing pushes out any moisture that got in. Water left in grease breaks it down over time, which can lead to bearing failure. Check your operator's manual for every grease point and the recommended grease type.
Yes. A full tank leaves less room for condensation, which helps keep water out of the fuel. Add a diesel fuel stabilizer according to the label, top off the tank, then run the engine for a few minutes. This moves treated fuel through the whole fuel system before the machine sits for the winter.
Clean crop residue off the machine and vacuum the cab, since leftover material and crumbs attract rodents. Store the equipment in a dry building when possible. Set rodent deterrents in the cab and around the machine, and check them throughout the winter. Rodents can chew through wiring, so this step can prevent costly repairs.