5-15
Maintenance
MAINTENANCE LIST
Inspection and maintenance item Page
Every 500 hours
Replacing the hydraulic oil return filter 5-40
Replacing the water separator filter 5-40
Replacing the fuel filter 5-41
Every 1000 hours
Replacing the travel motor gear oil* 5-42
Cleaning the engine cooling system 5-42
Replacing the air cleaner element 5-44
Inspecting and adjusting the engine valve clearance 5-45
Retightening the engine cylinder head bolt 5-45
Every 1500 hours
Inspecting and cleaning the engine fuel injectors 5-46
Inspecting the crankcase breather system 5-46
Every 2000 hours
Lapping the engine valve seats 5-47
Every 4000 hours
Replacing the hydraulic oil and cleaning the suction strainer 5-48
When required
Replacing the bucket teeth 5-50
Replacing the bucket 5-52
Lubricating the levers 5-54
Inspecting the rubber crawlers 5-55
Replacing the rubber crawlers 5-56
*: If the percentage of the traveling time within the total operating time is high, replace the gear
oil earlier than the specified time.
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