DH370 Swing Reducer Final Drive Reduction Gearbox Construction Machinery Parts

DH370 Excavator Final Drive Travel Motor Reduction Gearbox Construction Machinery Parts

Basic Structural Component Framework

Typical Malfunction Manifestation Phenomena & Root Cause Analysis Factor Summary

• Irregular abnormal acoustic noise generation / Choppy intermittent operational movement status function: Gear surface wear abrasion and pitting corrosion damage defect issues, bearing functional failure breakdown damage problems, inadequate insufficient or impurity‑containing contaminated lubrication fluid medium, improper unsuitable meshing backlash gap size parameter of gear pair components.
• Oil infiltration permeation and leakage malfunction problem troubles: Worn degraded oil seal ring component parts, housing structural crack fissure damage defect issues, overfilled excessive lubricant liquid level height parameter, clogged blocked ventilation breather port opening outlet.
• Sluggish slow‑moving or insufficient‑power weak slewing motion performance function: Worn degraded gear and bearing component assembly parts, incomplete partial brake release mechanical action function, hydraulic motor internal leakage bypass flow path system mechanism, mismatched non‑compatible reduction transmission gear ratio parameter.
• Excessive temperature rise overheating condition phenomenon problems: Low deficient oil content volume quantity or degraded lubricant physical‑chemical property characteristics, overload heavy‑load working operation mode conditions, brake drag resistance friction force energy, insufficient inadequate heat emission dissipation efficiency performance characteristics.
• Gear jumping slipping / Tooth breakage failure damage accident incidents: Sudden impact loading pressure force energy, foreign object debris particle intrusion into internal mechanism component parts, fatigue‑caused deterioration wear damage issues, shaft alignment misalignment deviation errors during assembly installation procedure processes.