1. Exhaust System Inspection (Priority)
Clogging threshold: Carbon buildup exceeding 3.3KPa backpressure
Action: Disassemble & clean carbon deposits from inner walls
Prevention: Monthly visual check of exhaust smoke density
2. Air Filter Emergency Protocol
Symptom: 30% power decline when filter ΔP > 15kPa
Solutions:
Light dust: Compressed air reverse flushing
Oil contamination: Replace filter immediately (glass fiber preferred)
3. Piston Assembly Verification
Cylinder pressure test: Disassembly required if < 18MPa
Critical indicators:
Blue exhaust smoke (oil burning)
Crankcase pressure > 0.08MPa
Ultimate Repair Strategy
Tri-Phase Correction Method:
1. Diagnose: Scan error codes (focus on hydraulic valve pressure)
2. Clean: Synchronous purge of fuel/air/cooling systems
3. Replace: Essentials=air filter + diesel filter + piston rings (cost <$120)
