Wubota Combine Harvester Maintenance Guide
Proper maintenance is key to ensuring efficient operation and extending the service life of combine harvesters. Please follow these guidelines for daily maintenance.
Our combine harvester maintenance checklist isn’t just a set of simple instructions—it’s a data-backed blueprint distilled from 16 years of hands-on industry leadership. With over 8,000 harvesters operating across 10+ countries—including India, Indonesia, Sri Lanka, Bangladesh, the Philippines, Colombia, Nepal, and multiple African markets—we’ve systematically documented real-world performance and failure patterns.
Why Trust Our Checklist?
- 🌾 8,000+ Combine harvesters Sold & Serviced – A global footprint built on reliability.
- 🌍 10+ Countries’ Field Conditions Analysed – From tropical humidity to rugged terrains.
- 📊 15 Years of Maintenance Logs – Translated into proactive care strategies.
- ⚙️ 30%+ Reduction in Downtime – Reported by users following our checklist.
- 🔧 Critical Component Lifespan Extended by Up to 40% – Based on structured servicing.
Every tip is field-validated, proper combine harvester maintenance, as detailed in these instructions, not only enhances the machine’s reliability but also reduces downtime and repair costs, making it an invaluable resource for farmers. Wants to download the full Wubota combine harvester form? Please contact us online or mail:: marketing@wubotamachinery.com.
Maintenance Before Work
Maintenance Items：
| No. | What needs to be done to achieve better performance | Frequency |
|---|---|---|
| 1 | Check the water volume and remove the dust on the water tank surface | Every day |
| 2 | Check the hydraulic oil level which should reach the bottom of the oil filter screen |
Every day |
| 3 | Check the engine oil level which should be in the middle of the scale line of the engine oil dipstick | Every day |
| 4 | Blow the air filter by compressed air | Twice a day |
| 5 | The engine should run at idle speed for 1 minute after starting | Every start |
| 6 | Clean the garbage and mud on the battery and muffler | Every day |
| 7 | Check the cutting blade whether damaged | Every day |
| 8 | Tension the grain lifting chain and add lubricating grease | Every 50 hours |
| 9 | Check the re-thresher lifting chain, tension it if loosen, replace it if damaged | Every 200 hours |
| 10 | Check the crawler guide wheel bearing and oil seal, replace it if damaged | Twice a day |
| 11 | Check the bearing 6203 on the cutting header drive and cutting table joint bearing, tension it if loosen, replace it if damaged | Twice a day |
| 12 | Check the conveyor connector hoop sleeve, replace it if big gap | Every harvest season |
| 13 | Check every tension belts of transmission part, tension them if loosen | Every day |
| 14 | Check track crawler tensioning, lift the upper track upward, about 10cm deflection, tighten if too loose | Every day |
| 15 | Open the thresher drum cover and check the concave screen and fan belt, replace if damage | Every day |
| No. | DO | Don’t |
|---|---|---|
| 1 | When the oil filter is replaced, the oil shall be replaced at the same time | Do not check when the engine is working |
| 2 | Check the engine oil and coolant before every start, add more if below the specified scale | Do not check on uneven ground |
| 3 | Check every bolts, nuts, and machine body | Do not check when the engine is working |
| 4 | Check every lamp switches horn switch, indicator light | Do not work if damaged |
| 5 | Check the instrument board, all running parts, parking cable, brake pedals, and engine sound after starting the engine | Do not stay below the cutting header unless the safety pin on position |
| 7 | In case of any abnormality during the previous day’s working, it shall be carefully inspected before start | Do not stay below the cutting header unless the safety pin on position |
Maintenance At Work
Maintenance Items
| No. | What needs to be done to achieve better performance | Frequency |
|---|---|---|
| 1 | Check around the field to remove the garbage such as stones, steel, wood etc | Every day |
| 2 | Check the oil condition if the oil pressure gauge is in the red area (even if the pressure indication is normal) | Every day |
| No. | DO | Don’t |
|---|---|---|
| 1 | Tighten the fuel tank cap and wipe off spilled fuel after refueling | Do not smoke, prevent any flame when infuse fuel |
| 2 | Before working, put all clutch on the “OFF” position, operate the handle throttle and adjust the engine speed around 2000 rpm | Do not lower the engine speed during steering (or else the cleaning rate reducing and grain blockage will be happened) |
| 3 | When the auxiliary shift lever needs to be changed during working, stop walking firstly | Do not shift any gear during machine walking forward |
| 4 | When harvesting near the field ridge, please be careful to avoid any hit | Do not hit the divider to the field ridge |
| 5 | After turning the key to the “Start” position, if the engine fails to start within 10 seconds, turn the key to the “Off” position and wait for 30 seconds before restarting the engine | Do not switch on the key continuely more than 10 seconds (or else engine may damage) |
| 6 | Check the field moist situation before working | Do not harvest if crops are wet (Or else it will cause damage to the concave screen and auger) |
| 7 | Use the front for uphill and the back for downhill to prevent rollover | Do not use high speed level to cross the ridge and steep |
| 8 | Check the air filter and intake pipe any time | Do not continue to work when the air filter or intake pipe is damaged (or else engine may damage) |
| 9 | During gearshift operation, the main transmission lever must be at neutral position. Change the gear when the machine is completely stopped. Press the brake pedal to change the gear | Do not shift the gear if the transmission gearbox has abnormal noise |
| 10 | Driving slowly and carefully to climb or go cross the pit, it must be leveled with soil or wood blocks | Do not climb the steps forcibly or go through deep pits |
| 11 | Turning slowly if the yield of crops is high | Do not turn fast (or else the total loss rate may be increased) |
| 12 | Use the properly high quality loading ramp to unload machine | Do not choose the ramp without anti-skid design |
| 13 | Driving and turn slowly when accelerating | Do not accelerat and turn suddenly |
| 14 | Clean the sand and stone on road during turning | Do not sharp turn on sand-gravel road with bricks and stones (or else the crawler may damage) |
| 15 | Immediately turn off the engine, lock the parking brake, and place all operating handles in the “OFF” position before check the machine if any blockage or abnormality happened | Do not working if any blockage or abnormality happened |
| 16 | Tighten the cuffs of clothes during operation | Do not wear headband, scarf and waist towel during opeartion |
| 17 | The optimal working operating speed of the engine is between 2500-2600 rpm | Do not working in low engine speed or else the crops may block inside |
| 18 | The engine must higher than 1500 rpm during unloading grain | Do not unloading grain in low engine speed |
| 19 | Cover the machine with waterproof cloth if rainy, especially the front part of air filter shall be try | Do not working or transportation into the rain |
| 20 | Cleaning the soil or weeds into the track or else it will increase the walking resistance | Do not working before clean the track from straw twine |
Maintenance After Work
Maintenance Items
| No. | What needs to be done to achieve better performance | Frequency |
|---|---|---|
| 1 | Charge the battery after long time no use | Once a month |
| 2 | Replace the rubber pipes such as radiator pipe and fuel pipe | Every two years |
| 3 | Electric wires shall be checked regularly | Once a year |
| 4 | Clean the suction port mesh, dustproof net and radiator with soft brush or compressed air or low-pressure water gun after harvesting | Every day |
| 5 | Remove the straw and garbage stuck on the battery and wiring after the harvesting | Every day |
| 6 | Wear protective glasses and rubber gloves to check the battery | Every day |
| 7 | Disassembled and inspetion the gearbox | Every 1000 hours working |
| No. | DO | Don’t |
|---|---|---|
| 1 | Add grease to the rotating parts and sliding parts after clean the chassis from mud and straw | Do not wash with water except chassis |
| 2 | Clean the grain and straw into the machine | Do not use the corrosive fluid to clean the machine |
| 3 | Check the water volume of the main water tank | Do not open the main water tank cap if the engine is running or just stop while (or else burning water will spray out) |
| 4 | Cleaning the filter element carefully everyday after working | Do not deform the filter element or wash with any liquid (or else the filter will broken and dust will come into the engine) |
| 5 | Cleaning the dust and straw onto the battery | Do not block the vent hole of the battery (or else the internal pressure will rise to explode) |
| 6 | Park the machine in a dry and ventilated place free from rain. Wooden plate shall be padded under the rubber crawler | Do not park the machine without any protect |
| 7 | Check the oil level of the transmission gear box, add oil to the stardard position and check whether there is oil leakage | Do not add the poor quality or unqualified oil |
| 8 | Use high-quality diesel from a reputable gas station, and drain the water from the primary filter when refueling | Do not use the poor quality uncleanly desiel fuel |
| 9 | The fuel tank shall be filled full with fuel | Do not make fuel tank empty (or else fuel tank will be rusted) |
| 10 | The battery should be removed and fully charged, stored in a ventilated and cool place. Disconnect the negative pole if not use | Do not charge the battery into the attached machine to prevent the burning risk |
| 11 | Apply anti-rust oil, engine oil, or grease to the external parts to prevent rusting | Do not store the machine without protect |
| 12 | Clean the cutter bar and add oil everyday to prevent rusting | Do not use the rusting cutter blade for harvest working |
| 13 | Check the fuses into the electric box | Do not use the poor quality or unqualified fuses (or else it may cause fire) |