5-15
MAINTENANCE
Inspection and maintenance item Page
Every 1000 hours
Replacing the hydraulic oil return filter 5-46
Replacing the pilot line filter 5-46
Replacing the travel motor gear oil * 5-46
Cleaning the engine cooling system 5-46
Replacing the air cleaner element 5-48
Replacing the air breather filter 5-49
Inspecting and adjusting the engine valve clearance 5-49
Inspecting the engine compression pressure 5-49
Inspecting and cleaning the engine starter and the alternator 5-49
Every 1500 hours
Inspecting, cleaning and checking operation of the engine fuel injectors
<Applicable machine models 126000002 or later>
5-50
Inspecting the crankcase breather system 5-50
Cleaning the EGR cooler (cleaning the water side and exhaust air passage
blower) <Applicable machine models: 126100003 or later>
5-50
Every 2000 hours
Lapping the engine valve seats 5-51
Every 3000 hours
Inspecting the turbocharger (blow wash as necessary) 5-52
Inspecting, cleaning and checking operation of the EGR valve <Applicable
machine models: 126100003 or later>
5-52
Cleaning the EGR lead valve <Applicable machine models: 126100003 or
later>
5-52
Inspecting and cleaning the DPF soot filter <Applicable machine models:
126100003 or later>
5-52
Inspecting the operation of the air intake throttle valve 5-52
Inspecting and cleaning the injector <Applicable machine models:
126100003 or later>
5-52
Every 4000 hours
Replacing the hydraulic oil and cleaning the suction strainer 5-53
When required
Replacing the bucket teeth and the side cutters 5-56
Replacing the bucket 5-58
Adjusting the gap between the bucket and arm (If equipped) 5-60
Inspecting and replenishing the windshield washer fluid 5-61
Draining the water from the water separator 5-61
Lubricating the levers and pedals 5-62
Inspecting the rubber crawlers 5-63
Replacing the rubber crawlers 5-64
Every 2 years
Replacing the receiver dryer 5-66
MAINTENANCE LIST
*: If the percentage of the traveling time within the total operating time is high, replace the gear
oil earlier than the specified time.