Doosan DX60R Shop Manual page 267

Every 1500 Hours of Operation
Perform the following maintenance every 1500 hours of
operation.
• Inspect, Clean and Test Fuel Injectors
• Inspect, Clean and Test EGR valve 4TNV98-E
• Inspect Crankcase Breather System
Inspect, Clean and Test Fuel Injectors
High-pressure Hazard!
Avoid skin contact with the high-pressure diesel fuel spray
caused by a fuel system leak such as a broken fuel injection
line. High-pressure fuel can penetrate your skin and result in
serious injury. If you are exposed to high-pressure fuel spray,
obtain prompt medical treatment.
Never check for a fuel leak with your hands. Always use a
piece of wood or cardboard. Consult authorized DOOSAN
dealer or DOOSAN after sales service if have any questions or
required more information.
Failure to comply could result in death or serious injury.
Proper operation of the fuel injectors is required to obtain the
optimum injection pattern for full engine performance. The EPA
/ ARB requires that the fuel injectors are inspected, cleaned
and tested every 1500 hours. See "Testing of Fuel Injectors" on
page -194
This procedure is considered normal maintenance and is
performed at the owner's expense.
Inspect, Clean and Test EGR Valve 4TNV98-E
The EGR valve is a key component for cleaning exhaust gas.
To prevent the valve from deteriorating in exhaust gas
recirculation performance due to carbon accumulation, inspect,
clean and test the valve at least every 1500 hours.
Consult your local DOOSAN dealer for this service.
Engine
WARNING
Figure 107
FG009150
SP001693
Page 87