INSTRUMENTS AND CONTROLS 13.1.1 INSTRUMENTS 1 - Hour counter This instrument shows the hours worked by the engine. The figure shown is the total hour count, and advances by 1 for each hour worked, irrespective of engine speed. The hour counter advances if the engine is running even if the machine is not travelling or working. Use the hour counter to determine when maintenance is needed. S00129 2 - Engine temperature gauge This instrument shows the temperature of the engine coolant. Tem- perature should normally remain in the range 80 ч 85 ° C. After starting the engine, wait for it to warm up before you start work.
If the engine overheats during work, leave it idle until the temperature returns to within the normal range. S00135 3 - Fuel gauge This gauge shows how much fuel is left in the fuel tank. The ignition key must be in position « I » for the gauge to work. (See item 12 below.) S00128 13.1.2 WARNING LIGHTS AND INDICATORS 4 - Air filter warning light This warning light comes on whenever the engine air intake filter needs cleaning. S00100 5 - Low oil pressure warning light This warning light comes on and the engine warning buzzer sounds as soon as the ignition key is turned to position « I » before the engine starts.
After starting, both the warning light and the buzzer should switch off as soon as the oil circuit pressurises. If this warning light stays on, or if it comes on during operation, stop the machine immediately and locate the cause of the fault. S00101 44