Service and Maintenance 6.4 Combustion Air Cleaner Air cleaner servicing is needed when: Service Indicator the red signal 1 is fully visible when the engine is off. Service Switch the yellow pilot light comes on when the engine is running. After carrying out service work, reset the signal by pressing the button on the service indicator. © 25 885 1 The amount of dirt in the air cleaner depends on the amount of dust in the air and the size of the air cleaner used. If a high level of dust is anticipated, a cyclone-type precleaner can be fitted to the air cleaner. Cleaning intervals will have to be determined from case to case.
If a dry type air cleaner is used, clean when indicated by the service indicator or switch. 6.4.1 Cleaning Intervals © 2002 6 © 25 885 1 © 25 885 1