PRODUCT OVERVIEW Alarms Checking the Warning Devices Before and after engine start, make sure that the instruments and warning devices operate correctly. If the engine runs out of coolant or lubricating oil and the instruments and warning devices fail, they can not give you warning to prevent accidents. This can also lead to incorrect operation and cause further malfunctions of the engine. Before Engine Start 1. Turn on the battery switch. 2. Push the power switch on. All alarm lamps light up for 4 seconds. After 4 seconds, the charge lamp and the lubricating oil pressure alarm lamp light up, and the hourmeter is displayed. The alarm buzzer sounds until the engine starts.
After Engine Start After engine start, make sure that the warning devices operate correctly and according to “After start” in the below table. All alarm lamps turn off. The above check tells you whether the electric circuit for the warning lamps and alarm buzzer operate correctly. If they do not operate correctly, inspection and repair are required. Consult your dealer or distributor for repairs. NOTICE When the warning devices are activated and normal operation is impossible, stop the engine and do not use it until the problem has been solved.
22 YM Series Operation Manual Correct operation of the warning devices Instrument panel (power switch) Power ON Immediately After 2 seconds After 4 seconds Before start After start Starter switch OFF ON Alarm buzzer ON OFF Charge lamp ON ON ON OFF Coolant temperature lamp ON ON OFF OFF Engine lubricating oil pressure lamp ON ON ON OFF LCD display Yanmar Full display Hourmeter