Doosan DX60R Shop Manual page 243

Establish a periodic maintenance plan according to the
engine application and make sure you perform the required
periodic maintenance at the intervals indicated. Failure to
follow these guidelines will impair the engine's safety and
performance characteristics, shorten the engine's life and
may affect the warranty coverage on your engine.
Consult your authorized DOOSAN dealer or distributor for
assistance when checking items marked with a •.
If the fuel filter / water separator is positioned higher than
the fuel level in the fuel tank, water may not drip out when
the fuel filter / water separator drain cock is opened. If this
happens, turn the air vent screw on the top of the fuel filter /
water separator 2-3 turns counterclockwise.
Be sure to tighten the air vent screw after the water has
drained out.
When the engine is operated in dusty conditions, clean the
air cleaner element more frequently.
Never operate the engine with the air cleaner element(s)
removed. This may allow foreign material to enter the
engine and damage it.
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.
Engine
CAUTION
CAUTION
CAUTION
CAUTION
SP001693
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