Pretrip Inspection and Daily Maintenance CAUTION Failure to maintain a sealed air intake system could allow the entry of dirt and contaminants into the engine. This could adversely affect engine perfor- mance and result in engine damage. NOTE: After replacing the filter element, reset the restriction indicator by pressing the reset button. 12. Check the fluid level in the clutch fluid reservoir. The reservoir is full when the fluid level is up to the MAX mark. The fluid level must always be above the MIN mark. Use only heavy-duty brake fluid, DOT 3, in the hydraulic-clutch system. 13. Check the engine oil level ( Fig. 9.1 ).
The oil level should show between the upper and lower marks on the dipstick. Add enough oil to bring the level up to the operating range. See the engine manufacturer’s operation and maintenance manual for recommended lubricants and capacities. f010346 14. Check the oil level in the automatic transmission (if equipped). Fig. 9.1, Engine Oil Level Checking CAUTION NOTE: The fluid must be warm to ensure an accu- rate check. The fluid level rises as temperature in- creases. Operating the engine with the oil level below the low mark or above the high mark could result in en- gine damage.
With the vehicle on a level surface, check the oil level in the transmission using one of the following procedures: 9.7