MACHINE OPERATIONS AND CONTROLS OPERATION REMARK The oil level will vary depending upon the oil temperature. Accordingly, use the following as a guide: G Before operation: around L level (Oil temperature 10 to 30єC (50 to 86єF)) G Normal operation: around H level (Oil temperature 50 to 80єC (122 to 176єF)) CHECK DUST INDICATOR 1. Open the cover at the rear of the cab and check that the red piston is not showing in the part of dust indicator (1) shown by the arrow. 2. If the red piston has appeared, clean or replace the ele- ment immediately. For details of the method of cleaning the element, see "CHECK, CLEAN AND REPLACE AIR CLEANER ELE- MENT (PAGE 4-20)". 3.
After checking, cleaning, and replacing, press the knob of dust indicator (1) to return the red piston to its original position. 3-48