Kubota group was founded in 1890 and has a long history of more than 130 years. Now Kubota Group is one of the largest agricultural manufacturers in the World. Many people are using the Kubota harvester machines at present. Today we are going to talk about the maintenance and replacement of Kubota harvester Quick-wear spare parts.
What are Kubota Harvester Quick-wear Parts?
It’s very important to check and maintain the harvester before working in the field, so farmers can harvest in time. It will have various problems when the harvester working in the field because of the changing of operators and working conditions. So we need to find the problems in time. So what are the quick-wear parts? What should we check? The quick-wear parts are the cutting assy, belts, and chains.
The most common quick-wear Kubota harvester spare parts include:
- Cutter bar blades and guards
- Drive belts (main drive, auger, fan, and conveyor belts)
- Rubber paddles and feed drum flaps
- Straw walker shoes and slats
- Threshing drum rasp bars and concave segments
- Conveyor chain links and sprockets
- Hydraulic filter elements and return-line strainers
- Air intake filters and radiator shrouds
Each of these components has a defined service life—typically ranging from 100–500 operating hours depending on crop type, field conditions, and operator technique. For example, cutter bar blades may need sharpening every 20–30 hours and full replacement after 150–200 hours in paddy fields with heavy stubble residue. Similarly, rubber paddles degrade rapidly under high-temperature operation during summer harvesting windows—a critical concern for users in northern and central India.
The Maintenance of the Cutting Assy
Check the cutting blades; if the blade is damaged, replace it. When replacing the cutting blades, you should remove the bolt on the guard first, remove the blade guard, and then you can remove the damaged cutting blade. If the blade guard is also damaged, replace the guard when replacing the cutting blade.
After replacing the cutting blades and blade guards, you should check the deviation; the blades are required to be in the same plane, and the deviation shall not exceed 0.5mm.
The Maintenance of V-belts
Before checking the v-belt, you should check the wheels first, check whether the driving wheel, driven wheel, and tension wheel are on the same plane, if not, you should adjust it to meet the requirement.
Firstly the tension wheel should be loosened or the wheel disc should be removed before checking or replacing the belt. If the new belt is too tight to be replaced, you should remove the pulley, then place the belt to the pulley, and finally install the pulley. You shouldn’t hard remove the belt.
The tension of the transmission belt is adjusted by the tension pulley. If the belt is too tight, the belts are easy to be damaged, and if it’s too loose, it will easily slip, causing severe wear and even burnout of the V-belt.
After the belts fail, you should replace them in time. You should replace the others at the same time if one belt fails, and the old and the new belts cannot be used together. You can use the same degree of wear and elongation belts together to save money.
The Maintenance of Chains
Checking the chains: if the chain is too tight, it will increase wear; if it’s too loose, it will cause impact and jumping. Generally, when one side of the chain is tightened, the other side should have a 20-30mm/m margin of activity in the vertical direction, and the two chains should not be attached together. If it cannot be met when the tension sprocket has been adjusted to the limit position, you can remove the chain link, but please pay attention: do not mix old links and new links.
When the chain climbing gear vibration and impact are too large to fail, it should be replaced in time. When replacing the chain, if the sprocket is severely worn, it may not fit well with the new chain, and the new sprocket should be replaced at the same time. However, if the sprocket is symmetrical left and right, it may work well if the sprocket is used in reverse.
When installing the chain, you should wound the chain on the sprocket first. When disassembling, use a hammer to lightly tap the two connecting pins on the same connecting plate alternately, pull out the pins, and remove the chain. If the chain pin head has been riveted and thickened, it can be flattened first and then disassembled.
After the end of each season, you should remove the chain and sock in oil, then coat it with butter, and then place it in a dry place. The sprocket should be scrubbed with gasoline or diesel oil, and coated with butter to prevent rust.
When Replacement Becomes Necessary
Despite diligent care, replacement is inevitable. Here’s how to execute it correctly—and why sourcing authentic Kubota spare parts matters.
Step 1: Identify the Correct Part Number
Never rely solely on visual matching or generic descriptions. Always cross-reference using Kubota’s official parts catalog (available via Kubota Connect portal or dealer portals) or consult your machine’s serial number–specific service manual. For instance, the PRO 700 uses different cutter bar configurations than the ST700—using mismatched blades risks imbalance, vibration, and bearing failure.
Step 2: Prioritize Genuine Kubota Components
Counterfeit or third-party “compatible” parts may appear economical upfront—but they often compromise metallurgy, dimensional tolerances, and surface hardness. A non-OEM rasp bar might wear 3× faster or generate excessive grain damage. Genuine Kubota harvester spare parts undergo rigorous validation for thermal stability, fatigue resistance, and interface compatibility—ensuring seamless integration with control systems (e.g., auto-threshing sensors or yield monitors).
Step 3: Verify Regional Availability — Especially in India
This brings us to a crucial operational reality: sourcing reliability in Kubota spare parts India. With over 200+ authorized service centers and a growing network of regional distribution hubs—including facilities in Pune, Coimbatore, Ludhiana, and Hyderabad—Kubota India has significantly strengthened its supply chain since 2020. However, lead times still vary:
- High-demand quick-wear items (e.g., belts, blades, paddles) are typically stocked locally and available within 24–48 hours.
- Specialized or imported components (e.g., hydraulic valves, electronic sensors) may require 5–10 working days—even with expedited logistics.
Farmers and fleet managers are advised to maintain a seasonal inventory of top-10 quick-wear Kubota spare parts, based on historical usage data. Kubota India’s “Smart Stock” program allows dealers to pre-order high-turnover items quarterly—ensuring just-in-time availability without overstocking capital.
Step 4: Follow OEM Installation Protocols
Replacing a part incorrectly negates its quality. Example: Installing a new cutter bar without verifying parallelism to the reel causes uneven cutting and accelerated guard wear. Always torque fasteners to Kubota-specified values (e.g., 25 Nm for feed drum mounting bolts); use thread-locking compounds where indicated; and perform post-installation functional checks—including no-load rotation tests and sensor calibration resets.
Step 5: Document & Analyze Replacement History
Maintain a digital or physical logbook noting part numbers, installation dates, operating hours at replacement, observed failure modes (e.g., “belt slipped due to worn idler pulley”), and environmental context (crop type, soil condition, temperature). Over time, this data reveals patterns—helping refine maintenance intervals and identify potential systemic issues (e.g., recurring hydraulic filter clogging may indicate a failing suction strainer upstream).
Our Kubota harvester spare parts
Our company mainly provides Kubota harvester spare parts, and all quick-wear parts are available. If you need, you can contact us at any time: WhatsApp & WeChat: +8613277988334. Looking forward to your inquiry.
