Ingersoll-Rand Doosan C185WKUB-T2 Export, Operation & Maintenance Manual, Page: 44 / 56

Operating & Maintenance Manual MAINTENANCE
42 Book: 46555713 (1-28-2011) Rev B
WARNING
!
High pressure air can cause severe injury or death from hot oil and flying parts.
Always relieve pressure before removing caps, plugs, covers or other parts from
pressurized air system.
1. Open the service air valve(s) to ensure that system is relieved of all pressure. Close the
valve(s).
2. Turn the spin-on filter element counterclockwise to remove it from the filter housing.
Inspect the filter.
3. Inspect the oil filter head to be sure the gasket was removed with the oil filter element.
Clean the gasket seal area on the oil filter head.
NOTICE
Installing a new oil filter element when the old gasket remains on the filter head, will
cause an oil leak and can cause property damage.
4. Lubricate the new filter gasket with the same oil being used in the machine.
5. Install new filter by turning the element clockwise until gasket makes initial
contact. Tighten an additional 1/2 to 3/4 turn.
6. Start unit and allow to build up to rated pressure. Check for leaks before placing
unit back into service.
Compressor Oil Cooler
The compressor lubricating and cooling oil is cooled by means of the fin and tube-type oil
cooler, located beside the radiator. The lubricating and cooling oil, flowing internally through
the core section, is cooled by the air stream from the cooling fan flowing past the core section.
When grease, oil and dirt accumulate on the exterior surfaces of the oil cooler, its efficiency is
impaired.
Each month it is recommended that the oil cooler be cleaned by directing compressed air
which contains a nonflammable, non-caustic safety solvent through the core of the oil cooler.
This should remove the accumulation of grease, oil and dirt from the exterior surfaces of the
oil cooler core so that the entire cooling area can transmit the heat of the lubricating and
cooling oil to air stream.
In the event foreign deposits, such as sludge and lacquer, accumulate in the oil cooler to the
extent that its cooling efficiency is impaired, a resulting high discharge air temperature is likely
to occur, causing shut down of the unit. To correct this situation it will be necessary to clean it
using a cleaning compound in accordance with the manufacturer’s recommendations.