Doosan DL200, Operation And Maintenance Manual

Page: 199 / 256

OP000509
4-55
Inspection, Maintenance and Adjustment
• Check that all hose and pipe connections from the
air cleaner to the engine induction manifold are
tight. Check tightness of hose clamps.
• If the alarm text remains after replacing the
primary filter, also the secondary filter must be
replaced. See “9. Air Cleaner Clogged Warning
Light” on page 2-21
Do not, under any circumstances, run the engine without a
filter or with a damaged one.
Always have a spare filter on hand and keep the filter well
protected from dirt.
Secondary Filter
Replace the filter every 2,000 hours or when the main filter
has been replaced three times.
The filter cannot be cleaned, but must be replaced.
The secondary filter works as a protective filter if the main
filter is damaged.
Never remove the secondary filter unless it is to be
replaced.
Replace Outer Air Cleaner Element
1. Open the side access cover at the rear of the cabin.
2. Remove the evacuator valve (1, Figure 89) and air
cleaner cover (2, Figure 89).
NOTE:
Inspect evacuator valve seal lips for wear or
damage. Replace valve if necessary. Install
evacuator valve with lips parallel to the cover.
CAUTION!
Never clean the inside of air filter housing while the
inner filter is not installed.
Figure 88
FG000425
2
1
4
Figure 89
CAUTION!
Never remove air cleaner element while engine is
running. This will allow dirt to be sucked into engine
and cause serious engine damage. Always turn engine
"OFF" before servicing air cleaner.