OPERATOR'S STATION Change Interval Settings IMPORTANT: Change interval can only be set when main- tenance information display is set to ON. 1. Select change interval by using keys 1 and 2. 2. Set time for change interval by using keys 3 and 4. Key 1 3. Select remaining hours by using keys 1 and 2, and push determination key. 4. The message “Adjust remaining hours to new change in- terval. OK?” displays. Then, push the determination key. Key 2 Interval ON/OFF Settings Screen 5. Push key 6, and the basic screen displays. T1V5-05-01-052 Key 1 Key 2 Key 3 Key 4 Determination Key T1V5-05-01-138 Determination Key Key 6 T1V5-05-01-139 Menu Key Basic Screen M1J1-01-002 1-43