Filter Replacement - Doosan XHP1000WCAT-T4i Operation And Maintenance Manual

Operation & Maintenance Manual

Filter Replacement

• With engine shutdown, ensure pressure is relieved from air system.
• Disconnect drains on the bottom of each filter housing. Inspect fittings and hoses for
any blockage. Clean if necessary.
• Using a chain wrench or similar tool, loosen the housing. The housing should be
removed by hand after loosening, taking care to prevent the housing from falling.
• Remove and replace the filter element, being careful not to damage outer wrap.
Verify the part number and positions of new element vs. old element, as the two IQ filter
stages are of different media.
• Put a small amount of petroleum jelly or other non-synthetic grease on the element
O-Ring to aid installation into the filter head.
• Replace housing, making sure to not overtighten.
• Repeat the above procedure on the remaining filter element.
• Reconnect drains on the bottom of each filter housing.
Optional Engine Overspeed Shutdown with Engine Air Inlet Shutoff
As a standard feature, the engine controller is programmed to stop the engine by shutting off
the fuel supply if the engine speed reaches 2100.
An optional feature can be supplied to shut off the air supply to the engine inlet manifold at the
same time the fuel is shut off.
This feature requires an optional engine air inlet elbow containing the shutoff valve
mechanism, optional engine ECM set up programming to activate the air shutoff feature, and
optional wiring harnesses to provide power to the shutoff valve relay and transmit the shutoff
signal.
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