3349423 XCMG GR2605 motor grader differential gear assembly

Technical Parameters

• Model: 3349423
• Type: Differential gear assembly (including side gears, pinion gears, shafts, washers)
• Material: 20CrMnTi or 20CrNiMo alloy structural steel
• Heat treatment: Carburizing and quenching, tooth surface hardness HRC 58～64
• Precision class: Meet heavy-duty transmission standards for construction machinery
• Torque capacity: Heavy-duty, suitable for high-power loaders/graders/rollers
• Operating temperature: -40℃～120℃
• Structure: Closed transmission structure with stable fit and smooth operation

Application Scenarios

• Realize differential rotation of left and right wheels to ensure smooth steering
• Transmit high torque from engine for heavy-duty operation
• Adapt to harsh working conditions such as mud, bumpy roads and frequent steering

Common Faults & Troubleshooting

• Gear knocking & abnormal noise: Caused by gear wear, lack of oil or foreign matter. Replace 3349423 differential gear assembly, change gear oil and clean differential housing.
• Running deviation & uneven power: Caused by excessive gear backlash or side gear wear. Replace the assembly and adjust backlash to standard.
• Severe overheating: Caused by poor lubrication or washer wear leading to dry friction. Replace complete gear and washer set, check lubricating oil passage.
• Gear fracture: Caused by severe impact or overload. Replace the assembly immediately and inspect axle housing and bearings for damage.