Maintenance Means Money

Depending on how you put your sprayer away at the close of the 2010 growing season, this will determine how much work you have to do to get that sprayer in tip-top condition for 2011. If you did the proper postseason maintenance and winterized your machine, you’ll be a lot farther down the road.

Your objective should be to have a sprayer that is properly maintained and calibrated in order to avoid expensive downtime during the upcoming season. When you’re racing the clock trying to get fertilizer and crop protection chemicals applied in a timely manner, the last thing you need is to see a small, neglected problem become a big problem.

Once you put the batteries back into the sprayer, pull it out of the shop, spread and lower the booms in the down position, and grease the machine from one end to the other, including the chassis, suspension and booms, paying attention to all fold points. Whether the sprayer has been stored over the winter in a heated shop or not, grease has a tendency to fall out or melt away. Proper and thorough greasing of your sprayer is the first important place to start. Next, make a close inspection of the rig — look at the boom for signs of paint missing and developing rust and examine hoses closely for blisters.

Next, fill the spray tank with clean water, turn on the pump and run it through the system for proper rinse-out through the boom. This is a great time to check that the liquid pump is operating to ensure full range of control and hitting the high-pressure marks. This will help clear out any corrosion you might have from materials applied the previous year.

By far, the biggest mistake that farmers make at the beginning of the season has to do with proper calibration. No matter how well calibrated the sprayer was when you first purchased it, it needs to be closely checked and recalibrated at the beginning of each season. Failure to do this can result in serious misapplications. Check all of the nozzles closely — they don’t last forever. Nozzles do wear and, depending on targeted application rates and the materials that are applied, they can wear quickly and result in misapplication.

Proper clean-out of spray tanks, pumps, hoses and the entire system is also becoming increasingly important as farmers and applicators use more tank mixes and herbicide chemistries with different modes of action in an effort to fight herbicide-resistant weeds and improve overall weed management. This is especially important when switching from PGR herbicides to glyphosate.

Here are some simple guidelines designed to ensure your sprayer is in top condition before heading to the field.

General Inspection Tips

A complete preseason inspection of your machine should be performed to make a list of areas that need repair before the season, and possibly a list of potential problem areas to be watched closely during the season. Fixing small problems when they are found to keep them from becoming a problem that could take the machine out of service.

Keep a log of any areas that may need attention during the season. Without a log, these problems may be forgotten and turn into larger problems.

On your checklist should be the following items:
•  Check oil and fluids.
•  Check tires.
•  Check fuel/water separator.
•  Follow daily greasing schedule.
•  Drain water from air tanks.
•  Inspect suspension.
•  Clean ladder and platform to cab.
•  Check for leaking fluids.
•  Check all air filters, including the primary, charcoal and recirculation filters. Replace if needed.
•  Clean cab windows.

Liquid Systems Tips

The liquid system of your application rig is where your money is made, so peak performance is essential. Here are the items that should be on your maintenance checklist:
•  Disassemble product pump and check for impeller wear and contamination.
•  Verify maximum pressure.
•  Check for leaky seals.
•  Inspect hoses for leaks, brittleness and bulging.
•  Check condition of hose clamps.
•  Ensure that breakaway boom system functions operate properly.
•  Ensure that all boom motions operate properly.
•  Check cylinders for leaks and condition of hoses.
•  Disassemble and clean strainers.
•  Replace damaged mesh.
•  Check section shutoffs for on/off speed and proper operation.

Calibration Procedures

Not having your spray system calibrated can cost you through misapplied fields with over- or under-applications, and by having to re-spray.

There is a direct correlation between the number of calibrations and spray accuracy. According to a University of Nebraska study of farmers, nearly 70% who calibrate more than once a year spray within 5 percent of the correct application rate. This contrasts with 95% who miss the mark when only calibrating once a year or less.

There are several areas on a self-propelled sprayer that have to be addressed for proper calibration: speed; flow meter; and nozzles. Proper calibration of the radar or wheel speed sensors is essential.

Calibration of the vehicle speed will ensure accurate application. A target application rate of 24 ounces per acre with a target application speed of 12 mph will result in an actual application rate of 18 ounces per acre when the actual ground speed is 15 mph. For proper speed calibration, use this equation: old calibration number multiplied by a known measurement, divided by what the console shows equals the new calibration number.

The old calibration number is the speed calibration number that is currently entered into the controller. For known measurement, you need to have a known distance to drive. The minimum distance is 400 feet, but the longer the distance, the more accurate the calibration will be. So a distance of one mile is recommended for the most accurate calibration.

Before driving the known measurement, find the area in the controller that counts up the distance driven. Clear that function and drive your marked distance. Use the number shown for distance driven for this portion of the formula: old calibration number multiplied by the actual distance driven divided by what the console shows.

Flow Meter Calibration

Flow meter calibrations should be done on a regular basis to ensure an accurate application. A flow meter that is out of calibration can cause an over- or under-application of product.

For example, at a target application rate of 24 oz./acre and a target application speed of 12 mph, a flow meter reading 10 percent under actual will cause an over application of 2.4 oz./acre. That means that in just 1,000 acres, you would have over applied 75 quarts of product. This is lost profit.

For flow meter calibration, use the following formula: old calibration number, multiplied by what the console shows, divided by a known measurement. This figure is the new meter calibration.

Nozzle Care

Nozzles may be one of the smallest components on a sprayer, but they are just as important as the engine. Without either one, fields will not get sprayed. Nozzles are important to control the amount (gallons per acre), determine uniformity of application, affect the coverage and influence the drift potential.

Nozzles that are worn by as little as 10% may not give you the coverage and performance you expect. Worn nozzles will affect the amount of chemical applied to an area and change the uniformity of the application, which may lead to poor coverage and having to respray.

It is important to keep track of new and used nozzles — mixing of new and used nozzles will cause an inconsistent spray pattern and application across the spray boom. Use an air compressor to clean nozzle orifices. As a general rule, choose the following droplet types for best performance: “fine” for fungicides and insecticides, “medium” for herbicides and “coarse” for pre-emergence products.

Attention to all of these details will ensure that your sprayer works flawlessly and gives you the best possible return on your equipment investment. Fixing problems when they are small and easy to correct is the best way to ensure your applications are on target and your sprayer will do exactly what it is designed to do.

Leave a Reply

Sprayers Stories

EquipmentCase Launches Aim Command FLEX, 25th Anniversary Patriot Sprayer
August 24, 2016
Case IH announces new AIM Command FLEX advanced spray technology for greater application accuracy, as well as special 25th Anniversary Read More
SprayersJenner Ag To Debut 25th Anniversary Edition Case IH Patriot Sprayer At MAGIE ’16
August 18, 2016
Visitors at the 2016 Midwest Ag Industries Exhibition (MAGIE) in Bloomington, IL, will have a unique photo opportunity, as Jenner Read More
642E 3-pt Hooded sprayer
SprayersSpray Technology Equipment Offer Helps Grower Maximize On-Target Herbicide Applications
August 3, 2016
Growers participating in Roundup Ready PLUS Crop Management Solutions now have an opportunity to upgrade sprayers with broadcast hoods at Read More
SprayersCNH Industrial Extends Miller Nitro Sprayer Distribution To Case IH
July 12, 2016
CNH Industrial announces an additional distribution channel for its Miller branded high-clearance sprayers in the U.S. through its Case IH Application Read More
Trending Articles
AGCO RG700 cab
OpinionRoadblocks To Precision Ag Innovation
October 5, 2016
On August 29, I got to preside over the PrecisionAg Innovation Series event, “Game-Changing Advances in Precision Farming Technology,” developed Read More
J.C. Ramsdell containment system
EquipmentClear Opportunity In The Tank Market
October 4, 2016
Crop prices may be down, but steel prices are too — and that’s good news for retailers looking to add some Read More
WinField booth Farm Progress
Special ReportsTalking Weed Management Strategies At Farm Progress 2016
October 2, 2016
The annual Farm Progress Show — this year staged in Boone, IA — is always a great place to catch Read More
Corn Field
Eric SfiligojFacing Ag Industry Challenges
September 26, 2016
At the 2016 annual Mid America CropLife Association (MACA) meeting in September, a pair of crop protection company representatives discussed Read More
Bayer Monsanto
Crop InputsBayer-Monsanto Mega-Merger: 6 Things You Need To Know
September 14, 2016
Mega mergers have become almost routine in the agricultural industry. Right on the heels of Monday’s news that fertilizer giants Potash Read More
Potash Corp Agrium
Crop InputsAgrium, Potash Corp To Merge To Create $36 Billion Company
September 12, 2016
Canada’s Agrium Inc. and Potash Corp of Saskatchewan Inc. have agreed to combine in a deal that would create a Read More
Latest News
ManagementThe Latest Dow-DuPont Rumor, Product of the Year Voting…
October 20, 2016
CropLife Editor Eric Sfiligoj shares a new rumor about the Dow-DuPont merger and updates on two CropLife-driven programs, the CropLife Read More
Soybean Closeup
FungicidesFMC Begins Registration Process For New Fungicide Activ…
October 19, 2016
FMC Agricultural Solutions has begun the joint U.S. EPA and Canadian Pest Management Regulatory Agency registration process for bixafen, a new Read More
Soil Young Corn
Industry NewsAgribusiness Search Firm Appoints New Managing Partner
October 18, 2016
Morris Bixby Group, a leading agribusiness search firm providing the highest quality professional recruiting and career advancement services since 2000, Read More
Wheat Field North Dakota
FertilizerUnited Suppliers Acquires Kansas Fertilizer Business
October 17, 2016
United Suppliers, Inc. has purchased the assets of Evans Enterprises, LLC, an ammonium chloride fertilizer business based in Olathe, KS. Read More
Corn Field
Industry NewsFMC Launches New Operations In Argentina, Exits Joint V…
October 17, 2016
FMC Corp. has exited its joint venture with Ruralco Soluciones S.A. FMC has launched new commercial operations, FMC Quimica S.A., Read More
Dow AgroSciences
InsecticidesRenewed Registration Issued For Products Containing Sul…
October 17, 2016
On October 14, 2016, the U.S. EPA re-established the registration of products containing sulfoxaflor (Isoclast Active), including Transform WG, Closer Read More
Eric SfiligojThe Whys Of Agriculture
October 17, 2016
During 2016, there have been myriad challenges facing the whole agricultural industry. Such wide ranging issues as water protection, sustainable Read More
Young Corn Field
FertilizerImproved Phosphorus Management Essential To Feeding Wor…
October 14, 2016
With a global population expected to reach 9 billion people by 2050, improved management of key essential nutrients such as Read More
ManagementHarvest and Crop Price Updates; EPA and Crop Protection…
October 13, 2016
Glyphosate and atrazine get public comment support from ARA as each is reviewed by EPA, and the latest on the Read More
Matt Hopkins15 Twitter Accounts Every Ag Professional Must Follow
October 13, 2016
What do singer Katy Perry and the President of the United States have in common? They are two of the Read More
Corn Field
Industry NewsArysta LifeScience Adds Two Key Account Managers
October 13, 2016
Arysta LifeScience North America recently announced the addition of two key account managers: Doug Hoberty and Rob Wier. Hoberty and Read More
EquipmentDeere Announces Development Deal with Scherer Design
October 12, 2016
Deere & Co. announces a joint development agreement with Scherer Design Engineering, Inc. to develop and commercialize kernel processing solutions Read More
Crop InputsMarrone Bio Innovations Celebrates 10 Years Of Innovati…
October 12, 2016
Richard Rominger, former Deputy Secretary of the USDA and former agricultural secretary of California, emceed a 10th anniversary luncheon celebration on Read More
Photo credit: The United Soybean Board/The Soybean Checkoff.
Industry NewsVive Crop Protection Closes Financing To Support Corpor…
October 11, 2016
Vive Crop Protection has announced the closing of growth financing to support 2017 commercial expansion. The financing was led by Read More
SoftwareHD Precision Analytics Launches New Mobile App For Agri…
October 11, 2016
AGSentry from HD Precision Analytics is a Software-as-a-Service (SaaS) platform that offers simple data service and actionable analytics tool. It focuses Read More
HerbicidesWeed Control And Soil Health Go Hand-in-Hand
October 10, 2016
Although many landowners may not give much thought to weed control as a soil health measure, Gared Shaffer, South Dakota Read More
Students Soybean Field
Eric Sfiligoj2016 Young Leaders Speak
October 10, 2016
One of the consistent cries in agriculture today is the need to try and connect with the younger generations, attempting Read More
ManagementVision Conference Preview, Monsanto Earnings, and Produ…
October 7, 2016
Editors Paul Schrimpf and Eric Sfiligoj talk about the upcoming PrecisionAg Vision meeting in Arizona, Monsanto’s latest revenue numbers, and Read More