OPERATION 12.3 OPERATIONS AND CHECKS AFTER STARTING ENGINE After starting the engine, do not immediately start work. Carry out the following operations and checks. NOTE: Do not suddenly accelerate the engine before the warming-up operation is completed. Do not run the engine at low idle or high idle continuously for more than 20 minutes. If running the engine at idle can’t be avoided, apply load from time to time or run the engine at mid-range speed. 1. Depress accelerator pedal lightly and run the engine with no load at mid-range for about 5 minutes. 2. To warm up the hydraulic oil in cold areas, do as follows.
During the warming-up operation, check that the engine rotation is smooth, then set the safety lock of the work equipment control lever to the FREE position and move the bucket control lever in and out of TILT position to warm up the hydraulic oil. The relief time at the tilt position should be a maximum of 10 seconds. With this operation, the oil will reach the relief pressure and will warm up more quickly. 3. After the warming-up operation, check for normal gauge and caution lamps readings. If there is any abnormality, carry out repair. Run the engine under a light load until engine water temperature gauge (2) and the torque converter oil gauge (3) are in the green range. 4.
Check that there is no abnormality in the exhaust color, sound or vibration. If there is any abnormality, carry out repairs. 2-49 WA320-3MC