Pretrip Inspection and Daily Maintenance Hot Check COLD RUN band, add or drain fluid until it reaches the middle of the COLD RUN band. Operate the transmission in a drive range until normal operating temperature, 160 to 200°F (71 to 93°C), is reached. Perform a hot check at the first opportunity after normal operating temperature, 160 to 200°F (71 to 93°C), is reached. Park the vehicle. Shift to neutral (N) and ap- ply the parking brake. Let the engine run at idle. 15. Check the fuel water separator, if equipped, for contaminants. Wipe the dipstick clean and check the fluid level. A safe operating level is any level within the HOT RUN (upper) band on the dipstick.
With the engine shut down, partially open the drain valve under the collection bowl and drain water and contaminants as needed. If the fluid is not within this range, add or drain fluid as needed to bring the level to the top of the HOT RUN band. See Group 26 of the Cargo Maintenance Manual for fluid types and capacities. 16. Lower the cab. Close the drain valves on the air brake system air tanks. 17. Inspect the fuel tank(s) and fuel line connection. If equipped, be sure the fuel tank shutoff valves are open. Cold Check Replace leaking fuel tanks. Repair or replace any lines or connections that are leaking. For proce- dures, see Group 47 of the Cargo Workshop Manual.
A cold check may be made when the sump tem- perature is 60 to 104°F (15 to 40°C). If equipped with fuel tank shutoff valves, be sure the valves are fully open. Run the engine for at least one minute to clear the fluid system of air. With the engine running, wipe the dipstick clean and check the fluid level. Any level within the COLD RUN (lower) band is satisfactory for oper- ating the vehicle. If the level is not within the WARNING Never operate the engine with the fuel tank shutoff valves partly closed. This could damage the fuel 9.8