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Product Advantage
This matched front and rear guide rail set is installed on the chassis track system of LOVOL AF108 / RG108 crawler combine harvester. As the core guiding and supporting component for the rubber track, it restricts the track lateral displacement, guides the track to run on the correct path, and bears the impact load from the field.
During rice and wheat harvesting, especially in muddy paddy fields, uneven ground and bumpy terrain will cause the crawler to swing sideways. The front and rear guide rails effectively limit track deviation, reduce friction between track and frame, prevent track off-tracking, track tearing and abnormal roller wear. Stable track running greatly lowers chassis failure risk and avoids sudden shutdown during peak harvest.
Adopted thickened steel plate with bending forming, the contact surface is quenched for enhanced wear resistance and impact resistance. Anti-rust coating is applied on the surface. All mounting holes are precisely machined, fully consistent with OEM dimensions. Direct bolt-on replacement, no cutting, welding or modification required.
When your old guide rails are worn thin, deformed, bent or cracked, the rubber track will easily derail, wear rapidly and even get stuck in mud. Replacing the front & rear guide rail set before harvest is a cost-effective maintenance solution to protect crawler, rollers and whole chassis assembly.
Suitable for agricultural machinery distributors, farm repair workshops, large grain farms and harvester rental fleets. Bulk wholesale is available for overseas dealers.
Support and limit crawler track movement, keep crawler running in correct track path.
Reduce crawler deviation, prevent track falling‑off during harvesting operation.
Bear friction impact between crawler and chassis, protect chassis frame from direct wear.
Stabilize crawler tension running status, extend service life of crawler belt and related wheel parts.
Technical Parameters
| Item | Details |
|---|---|
| Part Number | Front Guide: DV01401000091Rear Guide: RV03401000044B |
| Fit Machine | LOVOL AF108, RG108 Crawler Combine Harvester |
| Product Name | Front Guide Rail, Rear Guide Rail |
| Material | High‑strength wear‑resistant cast steel |
| Installation Position | Crawler chassis, front & rear side of track frame |
| Processing Feature | Surface wear‑resistant treatment, impact resistance |
| Package | Neutral export packing |
✅ OEM Part Number: DV01401000091 (Front), RV03401000044B (Rear)
✅ Exact fit for LOVOL AF108 & RG108 crawler combine harvester
✅ Sold as matched front & rear rail set
✅ Thickened high-strength steel with heat-treated wear surface
✅ Anti-deformation & impact-resistant for muddy paddy field operation
✅ Prevents crawler derailment, track tearing and abnormal roller wear
✅ Precision drilled mounting holes, direct bolt-on installation
✅ Strict dimension & surface inspection before shipment
Product Uses
This Front & Rear Guide Rail set serves the crawler chassis system of LOVOL AF108 / RG108 combine harvesters.
Rice, wheat, soybean harvesting: Keep rubber crawler running centrally, avoid track deviation on muddy, soft and uneven farmland.
Long-hour continuous field operation: Resist impact, mud abrasion and vibration under heavy load during peak harvest.
Preventive maintenance: Replace worn guide rails before harvest to avoid crawler derailment and field breakdown.
Emergency field repair: Quick replacement for bent, cracked or heavily abraded old guide rails.
Spare parts inventory: Essential stocking item for agri-parts dealers, repair shops and harvester rental companies.
Q1: Which harvester models does this front & rear guide rail set fit?
A1: It is specially designed for LOVOL AF108 and RG108 crawler combine harvesters, part numbers DV01401000091 (Front) and RV03401000044B (Rear). Please confirm your original part numbers before ordering for compatibility.
Q2: Is this OEM original part?
A2: This is high-quality aftermarket matched guide rail set. Material thickness, hole position and overall dimensions match OEM standard. Ready for direct installation without modification.
Q3: What are the typical failure signs of worn guide rails?
A3: Crawler often derails, abnormal side friction on rubber track, track edge tearing, roller abnormal wear, guide rail bending or cracking. Replace the guide rail set immediately once these symptoms occur.
Q4: Can I replace only one rail instead of the full front & rear set?
A4: If only single rail is slightly damaged and another is still in good condition, single replacement is acceptable. But we recommend replacing front and rear rails together for balanced guiding performance and longer service life of your crawler.
Q5: How to extend the service life of guide rails?
A5: Clean mud and straw debris from chassis and guide rails after daily work. Regularly check crawler tension, avoid over-tight track which accelerates rail abrasion.
Q6: Do you support bulk wholesale for overseas dealers?
A6: Yes, we offer competitive bulk price for agricultural machinery distributors. Please contact us for wholesale quotation and lead time.
Q7: Any installation tips?
A7: Fasten all mounting bolts evenly after installation. Adjust crawler tension to factory recommended value. Check track running alignment and make sure no continuous friction between track and guide rail.
Product Operate Guide
Park the harvester on flat ground, shut down the engine and cut off power. Jack‑up the crawler side for maintenance.
Loosen the crawler tension device and release crawler tension properly, move the crawler away from old guide rails.
Remove bolts and take out worn, bent or cracked old front / rear guide rail.
Clean the mounting surface of track frame, remove mud, rust and debris.
Align new DV01401000091 front guide and RV03401000044B rear guide to mounting holes, fit in position.
Install fastening bolts and torque bolts to standard torque requirement.
Reset crawler tension to factory‑specified tension value.
Manually rotate crawler to ensure no interference, then perform harvester test‑run.
Inspect guide rail surface regularly every working season. Replace once heavy wear, crack or deformation occurs.
It is recommended to replace front and rear guide rails in pairs to avoid uneven wear and crawler deviation.
Keep mounting seat clean during installation; never install deformed or modified guide rail.
Frequently check bolt tightness under muddy and paddy‑field working conditions to prevent bolt loosening.
If crawler still deviates after rail replacement, inspect idler wheel, tension spring and crawler condition together.
Abnormal noise: Check bolt tightness, remove foreign objects stuck between guide rail and crawler.
Crawler easy to fall off: Confirm correct rail installation position, readjust crawler tension.
Product Video
