Doosan DX60R Shop Manual page 259

That a typical fuel tank is illustrated.
1. Position an approved container under the diesel fuel tank
(1, Figure 94) to collect the contaminates.
2. Remove the fuel cap (3, Figure 94).
3. Remove the drain plug (2, Figure 94) of the fuel tank to
drain the contaminates (water, dirt, etc.) from the bottom
of the tank.
4. Drain the tank until clean diesel fuel with no water and dirt
flows out. Reinstall and tighten the drain plug firmly.
5. Reinstall the fuel cap.
6. Check for leaks.
Replace Engine Oil and Engine Oil Filter
Only use the engine oil specified. Other engine oils may
affect warranty coverage,
components to seize and / or shorten engine life.
Prevent dirt and debris from contaminating the engine oil.
Carefully clean the oil cap / dipstick and the surrounding
area before you remove the cap.
Never mix different types of engine oil. This may adversely
affect the lubricating properties of the engine oil.
Never overfill. Overfilling may result in white exhaust
smoke, engine overspeed or internal damage.
Always be environmentally responsible.
Follow the guidelines of the EPA or other governmental
agencies for the proper disposal of hazardous materials
such as engine oil, diesel fuel and engine coolant. Consult
the local authorities or reclamation facility.
Never dispose of hazardous materials irresponsibly by
dumping them into a sewer, on the ground, or into ground
water or waterways.
Failure to follow these procedures may seriously harm the
environment.
Change the engine oil every 250 hours of operation after the
initial change at 50 hours. Replace the engine oil filter at the
same time. See "Replace Engine Oil and Engine Oil Filter" on
page -79
Engine
CAUTION
cause internal
CAUTION
Figure 94
engine
Figure 95
FG009156
SP001693
Page 79