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Product Advantage
This aftermarket main tension pulley assembly RV01412010001 is dedicated replacement component for LOVOL AF108 and RG108 crawler combine harvesters.
Constructed from high‑strength cast steel with wear‑resistant surface treatment, fitted with premium built‑in bearings and oil seals. It undertakes crawler tension adjusting and buffering work, keeps crawler at reasonable tightness, effectively lowers crawler deviation and shedding probability. Reliable sealing structure blocks mud, water and dust, avoids bearing abrasion, oil leakage and pulley seizure.
Suitable for replacing old assemblies with surface wear, seal leakage, inflexible rotation and deformation. Direct bolt‑on installation without modification. Adapt to various harsh farm working environments. Neutral export packing for global agricultural machinery dealers and end‑users.
Adjust and sustain the optimal tension of crawler track.
Buffer impact force generated during harvester traveling and turning.
Guide crawler track movement, reduce crawler deviation and track shedding risk.
Protect crawler and other undercarriage components from excessive tension damage.
Cooperate with tension spring to keep crawler chassis working stably under complex farmland conditions.
Technical Parameters
| Item | Details |
|---|---|
| Part Number | RV01412010001 |
| Product Name | Main Tension Pulley Assembly |
| Fit Machine | LOVOL AF108, RG108 Crawler Combine Harvester |
| Material | High‑strength cast steel with wear‑resistant surface treatment |
| Structure | Complete assembly with built‑in bearings and oil seals |
| Installation Position | Track frame, crawler tension system |
| Package | Neutral export packing |
Product Uses
Usage Scenarios
Crawler tension system of LOVOL AF108, RG108 combine harvester.
Replace worn, deformed, oil‑leaking or seized original main tension pulley assembly.
Routine overhaul and maintenance for harvester walking undercarriage.
Heavy‑load working conditions including paddy field, muddy land and frequently turning hilly farmland.
Q1: Which harvester models does RV01412010001 fit?
A: Specially designed for LOVOL AF108 and RG108 crawler combine harvester. Not compatible with other models without modification.
Q2: What failure signs require tension pulley assembly replacement?
A: Severe pulley surface wear, oil seal oil leakage, pulley inflexible rotation or stuck, obvious deformation, continuous crawler deviation after tension adjustment.
Q3: Can I only change pulley wheel without whole assembly?
A: Full assembly replacement is recommended. Separate wheel replacement may cause sealing failure and short service life.
Q4: Why crawler still falls off after changing tension pulley?
A: Please check guide rails, support rollers, crawler condition and tension spring meanwhile. Multiple undercarriage parts jointly affect crawler running status.
Q5: Is this original OEM part?
A: Aftermarket interchangeable spare part, matches original part number for direct replacement.
Product Operate Guide
Installation & Usage GuidePark harvester on flat ground, shut down engine and cut off power. Jack‑up the corresponding crawler side.
Loosen tension adjusting bolt, fully release crawler tension.
Remove connecting bolts, take out damaged old main tension pulley assembly.
Thoroughly clean mounting bracket, clear mud, rust and debris.
Install new RV01412010001 main tension pulley assembly in position.
Fasten fixing bolts according to specified torque.
Adjust tension bolt to set crawler to factory‑standard tension.
Manually rotate crawler to verify flexible rotation without jamming, then carry out harvester test‑run.
Inspect pulley wear, oil seal and lubricating condition every working season. Replace assembly when wear, leakage or seizure occurs.
Ensure mounting bracket is flat and clean before installation. Do not install deformed assembly.
Recheck bolt tightness regularly when working in paddy and muddy fields.
Keep correct grease filling for internal bearings, never operate under insufficient lubrication.
Readjust crawler tension after installation; too tight or too loose will accelerate component wear.
Abnormal noise: Check bolt looseness, bearing damage or foreign object trapped.
Oil leakage: Oil seal aging or damage, replace complete assembly.
Pulley cannot rotate freely: Check grease status and bearing damage.
Recurrent crawler deviation: Recheck tension value, inspect guide rails and other undercarriage parts.
Product Video
