Replacement Of Engine Oil; Replacement Of Engine Filter - Doosan DP158L Series Operation & Maintenance Manual

Replacement of Engine Oil

Check the oil level using an oil level gauge and replenish it if
required. Replace the engine oil in the following steps when
the engine is warm by running it.
1. Pull out the oil level gauge.
2. Open the drain plug of the oil pan to discharge the engine
oil from the container.
3. After discharging the engine oil, assemble the drain plug
of ghe oil pan again.
4. Fill the engine oil into the cartridge of the oil filter.
5. Through the oil filler cap, fill the engine oil.
6. Idle the engine for several minutes so that the oil circulate
through the lubrication system.
7. Then, stop the engine, wait for about 10 minutes, check
the oil level, and fill the oil if required.
DANGER
• Prolonged and repeated contact of skin with engine
oil may lead to shrinking, dryness of skin and even
cause dermatitis.
• Do not expose skin with exchanged engine oil for a
long period.
• Always wear work clothes and gloves.
• When skin is stained with engine oil, immediately
wash it with water, soap or hand cleaners.
• Do not clean skin with gasoline, fuel, thinner, or
solvent.
• Apply a skin protective cream after cleaning from
oil.
• Do not put oil-stained gloves or cloth in pockets.
Discard exchanged oil according to the regulations set
forth by the relevant authorities. Disposing of
discharged oil into the ground, sewers, drains, rivers,
or the sea will cause serious environmental pollution.
Violation of regulations regarding discard of engine oil
without observing the handling regulations, will be
punished.

Replacement of Engine Filter

Check the oil pressure and leakage, and replace the oil filter
if required. Whenever replacing the oil, the oil filter cartridge
should be replaced with a new on.
1. Using an oil filter wrench, loosen the cartridge by turning
it counterclockwise.
2. Wipe the oil filter head and cartridge contact thoroughly,
and make sure that the oil filter cartridge is positioned
properly.
3. Apply a little bit of oil to the o-ring area of the cartridge,
DV2213017A
assemble it until the O-ring surface may contact, and turn
it 3/4 or 1 turn using a wrench to keep it air-tight.
When replacing the oil filter cartridge, be sure to use
the genuine part of Doosan.
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4. Regular inspection
WARNING
CAUTION