5-10
MAINTENANCE
SAFETY-CRITICAL PARTS
To use the machine safely, periodically perform inspection and maintenance. The safety-critical
parts listed below must be periodically replaced for an increased safety.
Seriousinjuryorarecouldresultiftheyarewornordamaged.
List of safety-critical parts
Unit
Safety-critical parts to be replaced periodically
When to replace
Fuel system
Fuel hoses
Every 2 years
Packing on fuel filler cap
Heater & AC systems
Heaterhoses
Air conditioner hoses
Hydraulic
system
Main body
Hydraulic
hoses(pump-delivery)
Hydraulic
hoses(pump-suction)
Hydraulic
hoses(slewmotor)
Hydraulic
hoses(travelmotor)
Working
equipment
Hydraulic
hoses(boomcylinderpiping)
Hydraulic
hoses(secondboomcylinderpiping)
Hydraulic
hoses(armcylinderpiping)
Hydraulic
hoses(bucketcylinderpiping)
Hydraulic
hoses(swingcylinder)
Hydraulic
hoses(bladecylinder)
Hydraulic
hoses(anglebladecylinder)
Hydraulic
hoses(pilotvalve)
Hydraulic
hoses(auxiliarypiping)
Seat belt Every 3 years
SAFETY-CRITICAL PARTS