Doosan DX60R Shop Manual page 262

Every 500 Hours of Operation
Perform the following maintenance every 500 hours of operation.
• Replace Air Cleaner Element
• Replace Fuel Filter
• Clean Fuel Filter / Water Separator
• Replace Engine Oil Filter
Replace Air Cleaner Element
The maximum air intake restriction, in terms of differential
pressure measurement, must not exceed 0.90 psi (6.23 kPa;
635 mmAq). Clean or replace the air cleaner element if the
air intake restriction exceeds the above mentioned value.
Replace the air cleaner element (2, Figure 98) every 500 hours
even if it is not damaged or dirty.
When replacing the element, clean the inside of the air cleaner
case (4, Figure 98).
If the air cleaner is equipped with a double element,
only remove and replace the inner element (1, Figure 99) if the
engine lacks power or the dust indicator actuates (if equipped).
This is in addition to replacing the outer element.
Replace Fuel Filter
Fire And Explosion Hazard!
Diesel fuel is flammable and explosive under certain
conditions.
When you remove any fuel system component to perform
maintenance (such as changing the fuel filter) place an
approved container under the opening to catch the fuel.
Never use a shop rag to catch the fuel. Vapors from the rag
are flammable and explosive.
Wipe up any spills immediately.
Wear eye protection. The fuel system is under pressure and
fuel could spray out when you remove any fuel system
component.
Failure to comply will result in death or serious injury.
Engine
Page 82
CAUTION
DANGER
Figure 101
HDO1015I
SP001693