MAINTENANCE PRIOR TO START CHECKING THE CONTROLS 1. Turn the start switch to the operating position 'I'. 0 An alarm buzzer sounds until the machine is started. P I 2. Check that the following alarm and control indicators are on until the engine is started: Charging current (1) II Engine oil level (2) Parking brake (3) Intake air preheater (4) 75_209 3. Check that the fuel level indicator (5) indicates the fuel level in the fuel tank. Contact your local Komatsu dealer, if one or several of the indicators do not light up. 1 3 4 2 Do not only use the indicators to perform the checks prior to start. Always perform the work described as regular mainte- nance, too.
5 75_212 CHECKING THE ELECTRICAL CONNECTIONS Danger of ignition! Inflammable material (leaves, twigs, grass, etc.) may ignite within the electrical system! Remove inflammable material from the electrical system. If a fuse blows, or if there are any signs of a short-circuit within the electrical system, inform your local Komatsu dealer. Regularly check that the terminals are fastened tightly, retighten loose terminals. 7-28