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Immediate Shutdown:
Upon detecting any abnormality (unusual noises, smells, loss of control, fluid leaks, warning lights/alarms), immediately cease all operations.
Position the machine on firm, level, and safe ground, away from hazards like slopes, trenches, or power lines.
Securely lower all work equipment (bucket, arm, boom) to the ground; avoid leaving them suspended.
Complete De-energization/Engine Shutdown:
Shut off the engine, remove the key, and secure it.
For electric excavators, disconnect the main power switch (typically located near the batteries).
Depressurize Hydraulic System:
After engine shutdown, slowly operate all control levers several times (e.g., bucket open/close, arm retract/extend) to release residual hydraulic pressure. This is crucial to prevent injury from high-pressure fluid injection.
Establish Warning Zone:
Place highly visible warning signs, barrier tape, or warning lights around the machine (recommended radius 5-10 meters), clearly marking "Equipment Failure - Do Not Operate".
Activate the machine's warning beacon/lights during low visibility or nighttime conditions.
Initial Risk Assessment:
Observe Calmly: Without touching the machine, carefully observe the failure point (e.g., leak location, damaged component, smoke origin).
Identify Hazards:
High-Pressure Hydraulic Leaks: Extremely hazardous (pressures can exceed 35 MPa / 5000 psi, temperatures can reach 80°C / 176°F+), capable of penetrating skin or causing fire.
Electrical System Faults: Risk of short circuits, arcing, or electrocution.
Structural Failure/Loosening: Risk of falling components or machine instability.
Undercarriage/Travel System Failure: Risk of unintended machine movement.
Damaged Rotating Components: Risk of flying debris.
Document Symptoms Precisely:
Specific Manifestation: What action was the machine performing when the fault occurred? (e.g., slow/weak movement, jerking, stalling, unusual noise, vibration, smoke, engine shutdown, warning light/alarm).
Instrumentation Data: Record all fault codes (e.g., engine warning light, hydraulic overheat light, electrical alarm) and gauge readings (coolant temp, oil pressure, hydraulic oil temp, fuel level, voltage).
Operating Conditions: Workload, ambient temperature, and machine operating hours at the time of failure.
Perform Basic Visual Inspection (Safely):
Fluid Levels & Condition: Check engine oil, hydraulic fluid, coolant, and fuel levels. Look for contamination (milky emulsion, cloudiness, metal particles).
Leak Inspection: Thoroughly check for leaks (oil, water, air) at the engine, hydraulic pump, control valves, cylinders, hose/pipeline connections, coolers, and radiator. Identify source and severity.
Structural Inspection: Visually inspect major components (boom, arm, bucket, upper structure, undercarriage) for obvious deformation, cracks, weld failures, loose/missing bolts, or breaks.
Belts & Hoses: Check for aging, cracks, abrasion, or looseness.
Filter Status: Note condition of air, engine oil, hydraulic, and fuel filters if visible blockage is apparent.
Consult Documentation:
Locate the machine's Operation & Maintenance Manual (OMM) and Service Manual (SMM). These contain fault code definitions, system schematics, key specifications, and basic troubleshooting procedures.
Contact Authorized Dealer or Qualified Technician:
Clearly relay all documented symptoms, instrumentation data, initial inspection findings, and the machine Model/Serial Number to the service provider.
Follow any remote guidance from the technician only if it can be performed safely. Do NOT attempt complex disassembly yourself.
Repair Plan Communication:
Discuss the diagnosis, proposed repair plan, required parts, estimated labor time, and costs in detail with the service provider.
Clarify if the repair involves critical components (e.g., engine, main hydraulic pump, main control valve).
Request clarification on warranty coverage implications, if applicable.
Professional Repair Execution:
Qualified Personnel Only: Repairs, especially involving hydraulics, high-voltage systems, or structural integrity, must be performed by certified technicians.
Use Genuine/OEM-Equivalent Parts: Critical for reliability, performance, and safety. Avoid non-certified parts for core systems.
Documentation & Testing: Ensure the service provider supplies a detailed repair report and conducts thorough post-repair functional and safety testing.
Post-Repair Operation:
If you need it, you can contact us to help you check
Review Repair Report: Understand the cause of failure and work performed.
Initial Operation Monitoring: Closely observe machine performance during the first hours of operation after repair. Listen for noises, monitor gauges, and check for leaks.
Adhere to Maintenance Schedule: Strictly follow the OMM's preventive maintenance schedule to minimize future breakdown risks.
Email: belparts02@gmail.com
Whatsapp: +86 189 2896 5241
Our website:
Immediate Shutdown:
Upon detecting any abnormality (unusual noises, smells, loss of control, fluid leaks, warning lights/alarms), immediately cease all operations.
Position the machine on firm, level, and safe ground, away from hazards like slopes, trenches, or power lines.
Securely lower all work equipment (bucket, arm, boom) to the ground; avoid leaving them suspended.
Complete De-energization/Engine Shutdown:
Shut off the engine, remove the key, and secure it.
For electric excavators, disconnect the main power switch (typically located near the batteries).
Depressurize Hydraulic System:
After engine shutdown, slowly operate all control levers several times (e.g., bucket open/close, arm retract/extend) to release residual hydraulic pressure. This is crucial to prevent injury from high-pressure fluid injection.
Establish Warning Zone:
Place highly visible warning signs, barrier tape, or warning lights around the machine (recommended radius 5-10 meters), clearly marking "Equipment Failure - Do Not Operate".
Activate the machine's warning beacon/lights during low visibility or nighttime conditions.
Initial Risk Assessment:
Observe Calmly: Without touching the machine, carefully observe the failure point (e.g., leak location, damaged component, smoke origin).
Identify Hazards:
High-Pressure Hydraulic Leaks: Extremely hazardous (pressures can exceed 35 MPa / 5000 psi, temperatures can reach 80°C / 176°F+), capable of penetrating skin or causing fire.
Electrical System Faults: Risk of short circuits, arcing, or electrocution.
Structural Failure/Loosening: Risk of falling components or machine instability.
Undercarriage/Travel System Failure: Risk of unintended machine movement.
Damaged Rotating Components: Risk of flying debris.
Document Symptoms Precisely:
Specific Manifestation: What action was the machine performing when the fault occurred? (e.g., slow/weak movement, jerking, stalling, unusual noise, vibration, smoke, engine shutdown, warning light/alarm).
Instrumentation Data: Record all fault codes (e.g., engine warning light, hydraulic overheat light, electrical alarm) and gauge readings (coolant temp, oil pressure, hydraulic oil temp, fuel level, voltage).
Operating Conditions: Workload, ambient temperature, and machine operating hours at the time of failure.
Perform Basic Visual Inspection (Safely):
Fluid Levels & Condition: Check engine oil, hydraulic fluid, coolant, and fuel levels. Look for contamination (milky emulsion, cloudiness, metal particles).
Leak Inspection: Thoroughly check for leaks (oil, water, air) at the engine, hydraulic pump, control valves, cylinders, hose/pipeline connections, coolers, and radiator. Identify source and severity.
Structural Inspection: Visually inspect major components (boom, arm, bucket, upper structure, undercarriage) for obvious deformation, cracks, weld failures, loose/missing bolts, or breaks.
Belts & Hoses: Check for aging, cracks, abrasion, or looseness.
Filter Status: Note condition of air, engine oil, hydraulic, and fuel filters if visible blockage is apparent.
Consult Documentation:
Locate the machine's Operation & Maintenance Manual (OMM) and Service Manual (SMM). These contain fault code definitions, system schematics, key specifications, and basic troubleshooting procedures.
Contact Authorized Dealer or Qualified Technician:
Clearly relay all documented symptoms, instrumentation data, initial inspection findings, and the machine Model/Serial Number to the service provider.
Follow any remote guidance from the technician only if it can be performed safely. Do NOT attempt complex disassembly yourself.
Repair Plan Communication:
Discuss the diagnosis, proposed repair plan, required parts, estimated labor time, and costs in detail with the service provider.
Clarify if the repair involves critical components (e.g., engine, main hydraulic pump, main control valve).
Request clarification on warranty coverage implications, if applicable.
Professional Repair Execution:
Qualified Personnel Only: Repairs, especially involving hydraulics, high-voltage systems, or structural integrity, must be performed by certified technicians.
Use Genuine/OEM-Equivalent Parts: Critical for reliability, performance, and safety. Avoid non-certified parts for core systems.
Documentation & Testing: Ensure the service provider supplies a detailed repair report and conducts thorough post-repair functional and safety testing.
Post-Repair Operation:
If you need it, you can contact us to help you check
Review Repair Report: Understand the cause of failure and work performed.
Initial Operation Monitoring: Closely observe machine performance during the first hours of operation after repair. Listen for noises, monitor gauges, and check for leaks.
Adhere to Maintenance Schedule: Strictly follow the OMM's preventive maintenance schedule to minimize future breakdown risks.
Email: belparts02@gmail.com
Whatsapp: +86 189 2896 5241
Our website:
