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Spare Parts Planning for Dusty, High-Load Mining Fleets
Plan mining and heavy-construction spares by equipment criticality, lead time, contamination exposure, failure evidence and storage controls.
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FIELD NOTES · PARTS GUIDES · MAINTENANCE
Machinery Parts Insights
Practical answers for identifying, selecting and maintaining genuine Komatsu and Shantui parts—written for fleet owners, technicians and procurement teams.
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LATEST INSIGHTS
Technical guidance for better parts decisions
Clear, field-oriented articles with direct answers, model context and practical next steps.
Caterpillar Excavator Jerky Stick: A Symptom and Parts-Identification Guide
Intermittent or jerky stick movement should be described by direction, position and operating conditions before a cylinder or control valve is selected. A short video or one symptom cannot establish the failed internal component.…
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Sumitomo 240 Stalling with Combined Functions: Preserve Engine and Hydraulic Evidence
If the engine stalls during combined functions and an EGR message is present, keep both observations in the service record. Do not dismiss the engine message or assume a pump regulator is the cause before the exact engine…
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Caterpillar Excavator Will Not Swing: Safe Service Handoff Guide
If swing is unavailable while other movements still work, record whether one or both directions are affected and preserve any warning message. Do not try to diagnose the condition by having people push the bucket or by removing…
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Hydraulic Filter Warning Returns: Records Needed Before Replacing Again
When a hydraulic filter warning returns after service, preserve the exact message and the conditions in which it appeared. Check the installed-part and service records before ordering again. The recurrence alone cannot distinguish a filtration problem from an indication or circuit problem, and it does not justify bypassing the warning.
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No-Crank Complaint: Electrical Evidence Before Ordering a Starter
First distinguish no-crank from an engine that cranks but will not start. For a no-crank complaint, preserve the key-action response, display messages and recent electrical work. A click or a bright display does not by itself prove the battery or starter is serviceable. A parts decision needs the appropriate electrical assessment.
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Excavator Overheating After Cooler Cleaning: What to Document
If an excavator still overheats after cooler cleaning, record exactly what was cleaned and preserve the temperature warning and operating context. Cleaning one area does not verify the whole cooling system. The next step is a structured technical assessment, not automatically another radiator, thermostat or water pump.
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Final Drive Symptoms: Motor, Gearbox and Service Evidence
For weak travel or abnormal noise, record the affected side, direction and conditions before calling the complete final drive defective. Clarify whether an inquiry concerns a travel motor, reduction gearbox, brake-related assembly or a complete unit. The relevant parts and tests depend on the machine’s actual drivetrain arrangement.
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Excavator Slow or Weak: Evidence Before a Hydraulic Pump Decision
Slow or weak excavator movement does not identify a failed main pump by itself. First describe which functions are affected, the conditions already observed and any warning or service history. A pump decision needs a machine-specific technical assessment; replacing the pump from the symptom alone can leave the original cause unresolved.
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