11. EXPLANATION OF COMPONENTS 11.1.3 LAMP 1. AIR CLEANER CLOGGING CAUTION LAMP This warns the operator that the air cleaner element is clogged. The lamp should be OFF during normal operation. If the lamp lights up during operation, replace the element immedi- ately. After cleaning, check that the air cleaner clogging caution lamp does not light up. A dust indicator is installed to the inlet pipe of the air cleaner inside the engine room on the right side of the machine. Use this together with the air cleaner clogging caution lamp to check for clogging. For details of the method of checking for clogging with the dust indicator, see “12.1.2 CHECK DUST INDICATOR”. 2-10