10 tricks of combine harvester parts trouble-shooting
To improve harvesting efficiency and prolong the combine harvester machine life,
Please always choose high-quality Combine Parts from www.cothda.com

1 Q: What caused the harvester blades to get clogged with straw during harvesting as the following situations?
Answer:
Check whether there is a large clearance between the combine parts, i.e the fixed harvester blades the moving harvester blades; If yes, narrow the distance between the fixed harvester blades and the moving harvester blades.
Check whether there is any damage to harvester blades and combine fingers; if yes, please change the qualified harvester blades and combine fingers.
Check whether the stubble is too slow and the harvester blades have clay on it. if yes, please raise the height of the harvesting crop stop harvesting.
Check whether the combine harvester cut into the wire, sticks, or any other hard sundries; If yes, please, remove the straw, wire, sticks, or any tough kinds of stuff.
Check whether the crops are too wet and caused the harvester belts to slip after wet. If yes, please stop harvesting if the ground is too wet and rotten. meanwhile, please adjust the tightness fo the combine harvester bels according to the manual instruction. if the combine harvester belt is too tight, it will affect the cropping speed, and if it is too loose, it will easily get a slip.
2 Question: What caused the grain accumulation and blockage in the combine header.

Answer:
Check whether the crop is too short, the cutter did not cut all the crop; If yes, please reduce the height of combine header and appropriately reduce harvest divider (LH RH 5T106-4814-0) to reduce advance speed, improve stubble height and reduce cutting width.
check whether the harvest divider is a little bit higher so the crops cannot be divided into harvester auger drum properly. If yes, please correct the bottom plate of the cutting table, or readjust the gap between the agur DRUM 5T106-5211-2 and the bottom plate; Clear blocked grain stalks
check whether the harvest divider revving too low to prick the crop;
Check whether the distance from the harvest reel to the bottom of the harvest platform is too small or too large. If yes, please adjust the harvester belt 5T101-5455-2for tightness.
4 What caused cut crops cut dumped forward?
Check whether the speed of harvester and reel pulley are mismatched. The harvester speed is a little bit quicker, and the reel REEL CENTER 5T106-5511-0 speeds slow. This makes the harvester blades touching the ground or not cut properly. If yes, please reduce harvester forward speed and increase the rotation speed of Harvester And pully 5T051 5355 to make it coordinated; Remove back soil or inspect the combine finger.
5 Question: What caused the excessive loss of harvesting
Answer:
The speed of the reel is too high and the number of hits is too high; The position of the reel combine reel pulley is forward, and the impact strength is high; Reel reel pull is on the high side, hitting the crop head. If the harvester working status like this, please reduce the speed and move the reel backward and lower the reel combine pull position.
6 Questions: What caused the harvester header drum blocked?
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6Answer:
The reasons are as follows: the looseness of the combined harvester belts reduces the speed of the drive drum; the feeding amount was too large, the crop was moist and the stem was tough; the engine speed does not reach the rated speed.
Troubleshooting: The first choice is to shut down the engine and remove the clogged stem. Then, according to the fault reason, check the harvester belt tightness and drive drum speed to make the belt tightness and drum speed meet the requirements;
In order to reduce the feeding rate, reduce the forward speed or increase the stubble or reduce the cutting width, delay the harvesting or reduce the feeding amount appropriately;
Pull the throttle in place to allow the engine to reach the rated speed.
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7 Questions: What caused the threshing auger drum not clean.
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7Answer:
The threshing clearance is too large and the rotating speed of the threshing cylinder is not enough;
The feeding amount is too large or the feeding is uneven; the bar or the threading cylinder tooth is worn or broken;
Concave bars were deformed.
The results show that the clearance of concave is reduced and the speed of the threshing cylinder is increased;
Trouble-shooting: Reduce the forward speed of the machine or reduce the cutting amplitude; replace the bar or nail teeth; Replace and repair the concave grid bar.
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8 Questions: What caused high grain crushing rate?
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Answer:
The speed of the threshing cylinder is too high;
The threshing clearance is too small and the threshing effect of the thresher is too strong;
There are too many crop particles entering the trash auger.
Troubleshooting: reduce the speed of the threshing cylinder;
The threshing clearance should be increased and the number of washboards should be reduced properly;
Reduce the air intake of the fan properly, and open the front section of the screen to reduce the number of miscellaneous augers.
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9 Questions: What caused abnormal noise in the cylinder auger drum?
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Answer:
There may be hard foreign bodies in the drum;
The screw falls off or the threshing cylinder teeth are damaged;
The results show that the drum is deformed or unbalanced, and the drum shaft is surging cylinder shift; the bearing is damaged.
Troubleshooting: remove the foreign matter in the auger drum; replace the screw, bar, or toothed plate; Repair the deformation and make the roller stable; adjust and tighten the screw to eliminate the axial movement; replace the damaged bearing.
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10 Questions: What caused too much loss in grain cleaning, not clean threshing and grain cleanliness low?
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Answer:
Check the combine parts and see if the sieve case opening was too small;
The air volume of the fan is too large or too small;
The feeding amount of grain is too large;
Auger Drum speed is too high, the cleaning load is too large.
The lower part of concave screen concave is blocked;
The speed of threshing and cleaning parts is low;
The crops are too wet or overgrown with weeds, and the feeding amount is too large.
Troubleshooting:
Adjust the opening of the sieve case, adjust the opening of the air adjusting plate to make the air volume moderate, reduce the forward speed of the harvester machine, and adjust the opening of the air adjusting plate;
Increase stubble to reduce feed rate;
Reduce the drum speed, reduce the cleaning load.
The opening of the front segment of the upper sieve concave was too large;
The air volume is too small. Please remove the blockage at the lower part of the concave screen;
Please check the engine speed and the tightness of the threshing cylinder tension arm;
Please reduce the amount of feed.
Please reduce the opening of the concave plate and increase the opening of the air adjusting plate properly
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The table is the corresponding Model number for some of our Combine Parts
Kubota Harvester Parts 998Q Name
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Model number
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TENSION Combine Harvester Belts
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5T101-5455-2
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AUGER DRUM
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5T106-5211-2
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Harvest DIVIDER LH RH
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5T106-4814-0
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Combine finger
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5T101-5149-2
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Harvester Blade
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5T106-5130-2
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Cothda 30years combine parts manufacturer
info@cothda.com
COMBINE HARVESTER PARTS Guide
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1: What is a combine harvester?
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2: Which are the parts of a combine harvester?
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3: Who are the manufacturers of your combine harvester parts?
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4: How do you select the right combine harvester parts?
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5: How do I install combine harvester parts?
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6: What is the structure of a combine harvester?
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7: What are the Advantages of using our combine harvester parts?
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8: How do you maintain combine harvester parts?
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9: How do I import Combine harvester parts from Cothda.com
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10: Why do business with cothda.com?
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11: Combine harvester parts at Cothda Agri Supply Co., Ltd

Chapter 1: What is a combine harvester?
Cothda is a game-changer in the Agricultural field. We are the ideal manufacturers of Combine harvester parts.
First, you need to understand what a combine harvester is? A combine harvester is a multi-functional machine used for crop harvesting.
Our Combine harvesters are designed to gather over 100 different types of crops. Whether you are harvesting cereals, legumes, fruits, vegetables we got you covered.
Our combine harvesters can be used in three different sequential tasks. Apart from harvesting, our combine harvesters will also help you in winnowing and threshing.
At Cothda we have the best Combine harvester parts for your agricultural activities. If you want to reduce the labor force and increase yields, we have the best solution for you.
The combine harvesters will help you reduce the number of people engaging in your harvesting activities. This will help you with cost-saving.
Since the combine harvesters are self-propelled. This means the harvester machine will run by itself with an engine attached.
The engine power will play the role of driving and harvesting. You won’t need to hire a driver for your machine.
Using combine harvesters will save you a lot of time and human effort. It is fast, efficient, and effective.
The combine harvester offers you a quick harvesting process. This will make your agricultural field ready for the next activity. This will lead to an increase in crop production.
Combine harvester will maintain the quality of your harvest through preservation. This is done by ensuring your grains are not damaged by natural or even biological activity.
It also gives you cleaner grains compared to doing it manually. In case you experience troubleshoot during harvest we are always here for you.
You can call us, email, or send us a notice. Within 24 hours we will connect you with an engineer. We have 24/7 customer support.
From the cutting of crops from your field to threshing, cleaning, and packing, all the parts involved we got you covered. Our combine harvester parts are built to last.
The combine harvester is designed to have the perfect compact size. Its body is compactly designed for uneven, wet, or even swampy and small fields.
It is also lightweight which reduces the earth’s pressure. This light in weight makes it convenient to be used in wet and swampy areas.
If you want to harvest rice and you are wondering what combine harvester parts to the source, don’t worry Cothda will have you covered.
Chapter 2: Which are the parts of a combine harvester?
Combine harvesters from different branded combine harvester spare parts suppliers & manufacturers come in different parts and spare parts. Before making any purchase of a combine harvester part you need to understand them well.
We have various combine parts in stock available for purchase at a cost-effective price. Maintain your combine harvester for maximum work output.
Choosing the correct combine parts will definitely help you keep your combine harvesters in top condition. This will bring you optimal harvest quality.
We also help you locate a machine part you need for your combine harvester machine. We offer a wide selection of combine harvester parts at competitive prices.
You can check the price catalog.
Some of the combine harvester parts we have in store for you include the following;
Conveyor
The conveyor is responsible for transporting your grains from the cutter bar to the thresher. When harvesting ensures the intake conveyor is in its best performance for maximum output.
It helps in ensuring you archive quality work and optimal output. The conveyor also performs other duties apart from carrying your harvest.
This same conveyor is responsible for regulating the flow of your harvest evenly. This is very important as it can bring you an optimal harvest.
We have developed high-quality chains and bars for your conveyor. These chains and bars help you in handling the workload without the risk of breakages throughout the harvest.
We have the best-listed conveyors for your combine harvester. Welcome to Cothda and select from our catalogue the best conveyor that will bring the performance of your machine.
At Cothda o we offer you conveyor chains and bars at a fair price. You are welcome to send us your machine details and we will provide the conveyor compatible with your machine.
Threshing unit
We can say that the threshing unit is the heart of your combine harvester machine. Its function is to separate the kernel from the cob via friction.
It can deliver you a processed grain rate of 68%. It does not matter the type of combine harvester you are using.
The rotation of your threshing drum makes it possible to achieve that grain rate. We design the threshing drum in a concave shape.
This will help in the rotation of your moving components in a fixed direction. We have rasp bars combined with your adapted concaves.
This will ensure that your grains have optimal separation. Replacing your threshing unit components knocks down your tailings.
This enables you to achieve maximum productivity during the season. You can select from our listed threshing unit for your combine harvester.
At Cothda.com we ensure that you get reliable parts that boost your machine performance. We also offer a wide selection of threshing unit to wear parts for your combine harvester.
Our parts and spare parts are available for purchase at a fair price. We provide you with the best threshing unit at a cost-effective price.
You can send us an email, call us, or request for quotation about our threshing unit. We have a 24/7 customer support system. Our delivery process is fast, efficient, and effective.
Separating unit
We manufacture a separating unit which is unique and compatible with your combine harvester machine. The separating unit supplements your threshing unit.
Your crop requires additional processing. This is because of the threshing unit separation which does not exceed 68%on average.
You might find some models having a separating unit equipped with an impeller. Hence they are able to maintain a steady throughput of your grain.
You can also add a straw blockage flap to the separating unit. This will deliver you a smooth pull-through effect hence reducing the risk of blockages in your component.
Our combine harvesters are equipped with straw walker crankshafts. They oscillate in an alternate up-to-down motion.
This is to shake up your straw and collect your remaining grain that falls to the through. To improve the performance of our components, we have equipped them with one or several agitators.
These agitators tend to have forks to loosen and fluff your straw as it advances along with the straw walker. Separating system components is not easy.
You will experience some bulkiness and be subjected to a continual movement which will place them under mechanical stress. Keeping your material components in top condition will guarantee a consistent grain separation.
You can also be guaranteed throughput if your combine harvester is in top condition. At Cothda.com we offer you the best-separating unit.
We also offer you a wide selection of separating system wear. This will ensure we get you reliable quality parts to increase the efficiency of your machine.
Contact us for a reliable separating unit for your combine harvester machine. If you are also experiencing troubleshoot with your machine separating unit, let us know.
We also have a crankshaft, wooden bearing unit, grain pan among others. Choose from our selection of straw walkers and agitators at competitive prices.
Cleaning unit
The cleaning system is where your grains get cleaned. It is normally equipped with grain pans, sieves, and fans.
The function of the pan is to ensure your grains are fully distributed over the surface of your sieve. It is also the unit responsible for transporting your grains from the separator to the collector.
We have designed both upper and lower sieves to help you sort out your grains. They are available for purchase in different size openings.
We also design them to have a specific position on the machine where you will sort poorly threshed cobs.
The poorly threshed materials after sorting them you will have to send them to be thrashed again. This is done by the use of a tail elevator available on your way to the threshing unit.
We also have the grain elevator where your clean grain will be deposited.
We have also designed responsible movers for lifting your straw and bale residue. After lifting the residue, the fan is responsible for sending it to the lower parts of the machine.
Always be keen on these parts as they can easily be exposed to stretching when left under stress. This will later reduce their life span leading to poor production at the end.
You can always ensure the oiling and greasing of these parts are done before and after cleaning your grains. It not always easy to compare the losses accrued due to cleaning performance and the overall production
At Cothda.com we give you a listed catalog to select your cleaning unit which is compatible with your combine harvester. We always work hard to make sure you get reliable parts that boost your machine performance.
Ordering from Cothda.com gives you an opportunity to select from a million of listed combine harvester parts. This freedom will bring a lot of discipline throughout your project.
Let us know how best we can serve you. You can also ask an engineer in case you are experiencing any troubleshoot with your machine.
Grain and tailing collection unit
After successfully cleaning your grain from straw and bale residue, you need to lift it for storage. You can do this by using a grain auger that transports it to the elevator.
The un-threshed cob residue is sent to the tailing auger. This tailing auger transports them via a second elevator back to the threshing unit.
Our grain and tailing elevators are designed to have elevator chains with paddles mounted on sprockets. These combine parts ensure that your grain and tailing elevators function effectively and efficiently.
We recommend you place a heavy demand for these combine parts as they handle high volume materials. That is why you should conduct routine inspections to guarantee consistent grain and discharge rates.
The paddles in top condition will increase the amount of your material transported during each flow. To make sure you get reliable combine parts that boost your machine performance, we offer you a wide collection of combine harvester parts.
Welcome to Cothda and choose among our selection of elevator chains for your combine harvester. We have to combine harvester parts that are fully adapted to your machine at a pocket-friendly price.
We also have sprockets and paddles in-store available for purchase at your convenience, and other combine parts to help you in grain collection include; augers, elevator plates, grain tanks, etc.
Chopping system
After threshing, you will be left with straw and chaff. You can windrow or chop the straw remaining in the separation system.
If you don’t want to store the straw, you can chop and spread it in your field. This will make stubble plowing easier for the next activity.
The straw is processed by an extra fine-cut chopping system. This system consists of moving and fixed knives adapted to different harvesting applications for your machine.
Fan airflow is used to extract the chaff from your cleaning system. Our chaff spreader is comprised of discs and paddles which distribute it evenly according to the required working width.
If you do routine inspection and replacement of your chopping system components we guarantee you quality results at the end. The residue is quickly incorporated into the soil for your next planting season.
Cothda.com ensures you get reliable combine parts, these wear and spare parts that boost the performance of your combine harvester machine. We also offer you a wide selection of chopping system parts which are compatible with your combine harvester.
Choose among our selection of spreading system spare parts for your combine harvester. We guarantee you 24/7 technical support.
Welcome to Cothda and let us know how best we can serve you! Send us your brand, model, and the serial number of your combined harvester and we will help you choose the best parts adaptable to your machine.

Chapter 3: Who are the manufacturers of combine harvester parts?
Finding a reliable combine harvester parts manufacturers is often handwork. At Cothda we are the ideal manufacturers and suppliers of parts and spare parts for your combine harvester.
WE have been the leading combine harvester parts manufacturers and suppliers in China and Asia for over 35 years. We have what it takes to supply you with the best combine harvester parts.
Since the combine harvesters are designed to meet the tough wear conditions in different working conditions. The combine parts are required in tough quality too. Whether your combined harvester needs to run in dry or wet areas, we will get you all the quality combine parts needed.
Welcome to Cothda.com and get to enjoy 100% different combine harvester parts for your agricultural project. We offer these combine parts and spare parts at competitive prices.
We have been helping harvesting professionals by offering them different varieties of combine spare parts adapted to their harvester machines. We work with your budget.
We also offer a wide range of wear and maintenance combine parts for your combine harvester. We also have different combine parts for harvesters, mowers, round and square balers available in store for purchase.
We have a team of technical sales specialists to offer advice and technical support. We have expanded our research to cover the needs of the labor market.
We are an ISO9001, ISO 14001 certified enterprise for the manufacture and supply of combine harvester parts. We have a full range of combined harvester parts available in-store upon request.
Contact us now and choose the right spare part for your combine harvester. Make your combine harvester in good condition by working with us.
Chapter 4: How do you select the right combine harvester parts?
Selecting the right spare part for your combine harvester is very easy. Once you email us your machine model, a serial number we can help you choose the spare part compatible with your machine.
If you are in the market to purchase a combine harvester for your operations, it’s crucial to know what to look for. Combine harvesters tend to be very expensive hence an investment that you shouldn’t take lightly.
First, you need to ask yourself what are your harvesting expectations. You also need to know your class as the higher the power of the harvester the higher the class.
Another important thing to note is to always make the right brand choice. Harvesting comes with a lot of time pressure hence the need to choose a reliable machine.
This means you need to choose a brand with reputable product backup and dealer performance. Always stay in touch with your manufacturer in case you run into troubleshooting.
Just be sure to ask your dealer questions when it’s time to make a purchase. This will save you time and money during your harvest period.
Chapter 5: How do I install to combine harvester parts?
Cothda.com offers you a manual guideline on how to install any combine harvester part in your machine. We can install it on your machine once you purchase from us.
We also fix broken combine harvester parts in your machine. We also offer you a 3-year warranty for your combine harvester parts.
We have a team of qualified mechanical engineers to help you with installation, fixing, and repairing damaged combine parts in your machine. You don’t have to install the harvester spare parts by yourself when we are already available for that.
Talk to us now and we will guide you to install the combine harvester parts at your convenience. We will work with you in the entire harvesting process.
At Cothda we offer exclusive installation services. We upgrade our machine parts annually to ensure they go hand in hand with market changes.
Chapter 6: What is the structure of a combine harvester?
Check below pictures of the design and structure of combine harvester from Cothda.com

Chapter 7: What are the Advantages of using our combine harvester parts?
There are so many advantages that you can get from using Cothda.com combine harvester. A combine harvester is known for combining its three separate harvesting functions.
If you are planning to reap, thresh and winnow in one single process, combine harvester will do that for you. This also can reduce the cost of production which you were planning to use manually.
Our combined harvesters also help you to harvest your crops in a short period of time. This will save you time to prepare your land for the next planting season.
Combine harvesters also help you to tackle the problem of a labor shortage during the peak season. It saves you a lot of time and reduces your crop loss during manual harvesting.
Also using our combined harvesters you can enjoy additional grain obtained. Combine harvesters tend to solve the problem of grain loss which occurs during manual cutting of the crop.
Using our combined harvester can reduce your net cost. Combine harvesting can incur lower expenses than the cost of doing it manually.
You are guaranteed cleaner grains when using our combine harvester. Our combine harvesters produce cleaner grains for which the market is willing to pay a premium.
You find that you have reduced time to market after using our combine harvester machine. The time from your crop cutting to market is ready in an hour or so as compared to manual harvesting which takes weeks.
Chapter 8: How do you maintain combine harvester parts?
Since combine harvester is designed to make sure it’s compatible with your earth soil. There is a possibility of meeting different combine parts wear problems. At Cothda.com, we have what it takes to identify any troubleshoot facing your combine harvester.
Our qualified technical team with the help of customer support systems will supply you with the best combine parts for your project. We have over 30 years’ experience in built-in workshops.
Keeping your combine harvest parts in well-maintained conditions can bring you maximum output. Pay a lot of attention to several aspects to increase the lifespan of your parts.
Most of our combine parts are made of iron. If you mismanage them it will definitely shorten their lifespan.
Therefore, you should always clean your combine harvester parts when not in use. After cleaning you should coat them with anti-rust paint and store them in a ventilated dry place.
Ensure that you apply anti-aging for rubber parts. This will prevent easy aging cracks from occurring which tend to reduce the service life of your combine harvester parts.
For the wooden parts coat them with Tung oil and place them in a well-ventilated dry place. This will save them from rotting and deformation.
Take care of the spring parts as they can be exposed to stretching and deforming. If the spring is not in its free position it can lose its elasticity resulting in early retirement.
The engine is the heart of your combine harvester and it’s very important to clean it. Ensure proper oiling and greasing of your engine and clean any rust and dust particles in the engine.
If you do all this, it will save you a lot of time and money in replacing and hiring mechanics to check your parts. Always take good care of your combine harvester parts if you want them to last for long.
You can always seek our advice on how to maintain your combine harvester parts. Call us today and let us know how we can best serve you.
Chapter 9: How do I import Combine harvester parts from Cothda?
At Cothda, we make sure that we have provided you with the most effective and efficient shipping services. We have partnered with a number of shipping companies to make sure you get your spare parts in time.
We will deliver the package regardless of your location. Our delivery services are available across the world 24/7. Our business holds a high level of integrity and honesty.
We have esteemed market growth both in China and overseas. As your competent supplier of combine harvester parts, we can also provide you with OEM agricultural parts.
We also offer emergency shipments as per your unique requirements. Cothda has the best customer knowledge services and immediate shipment of your machine parts.
Chapter 10: Why do business with cothda?
We have been in the market for over 30 years now. Over the years we have been able to gain experience in the manufacture of combine harvester parts.
We have what it takes to be your competent combine harvester manufacturer and supplier. We are also ISO9001, ISO 14001 certified enterprise.
This means we have all the knowledge and experience in combine harvesters. We have worked with several agricultural companies both in China and overseas.
We have been able to expand our services from local to global networks. With this, we can innovate and customize spare parts that match your machine.
The majority of the research institutions, universities, and colleges in China have worked with us. They have also referred to our catalog for research and projects.
Cothda is one of the best combine harvester spare parts suppliers and combine harvester parts manufacturers to do business with. It not only brings you satisfaction but continuously improves your harvester livelihood.
We offer you customized combine harvester spare parts for your combine harvester at an affordable price. Your feedback will be greatly appreciated.
Cothda has what it takes to invent new spare parts for your combine harvester. Make your harvesting project complete by consulting us.
Chapter 11: Combine harvester parts at cothda.com. R&D Co., Ltd
Cothda technology group includes over 50 engineers in the R&D teams and. We work closely with agricultural institutions to help fix any troubleshoot with their combine harvesters.
We have laboratories for researching and upgrading new and old spare parts of your combine harvester.
Our research and development involve securing core technologies for our valued customers.
We have already invented combine harvester parts that can operate in both wet, swampy, and dry areas without affecting the topology of your land. And we are keeping working on the goal as well.