. OPERATION MACHINE OPERATIONS AND CONTROLS OPERATION MACHINE OPERATIONS AND CONTROLS shown in then install NOTICE 3 - 46 5. Extend as the dia gram on the right , remove the oil filler cap the ca p and pre ssurize t he in side of the tank Be s ure to p ressurize t he hydraulic t ank. If it i s not pressurized, the pump will suck in air, and thi s will adversel y affect t he equipment. Check Dust Indicato 1. Open t he engin e rear cover. 2. Check that the r ed pisto n ha s not ap peared i n the transparent portion of dust in dicator (1). 3. If the r ed piston immediately. For details of For d "CHEC K, CLEA N AND REPLACE A IR CLEANER ELEMENT (PAGE the element 4.
After c hecking, c leaning, and replaci ng, press the knob of dust indicat or (1) to r eturn the red piston t o its original position