Komatsu — Engine Oil Pressure Caution Lamp

OPERATION Brake Oil Pressure Caution Lamp The brake oil pressure caution lamp (1) illuminates when the brake oil pressure goes below the specified value. When carrying out the check before starting (starting switch at the ON position, engine stopped) Because the brake circuit is not actuated, the brake oil pressure caution lamp and central warning lamp do not illuminate and the alarm buzzer does not sound. During operation (engine running) If the brake oil pressure goes down during operation, the brake oil pressure caution lamp and central warning lamp illuminate and the alarm buzzer sounds intermittently.

At the same time, “E03” is displayed on the top line of the character display and “CHECK RIGHT NOW” and “CALL” alternately on the bottom line for three seconds each. Stop the machine immediately in a safe place; stop the engine; and carry out inspection. When the brake oil pressure caution lamp illuminates, it may be impossible to operate the brakes. Leave the parking brake applied to prevent the machine from moving. Immediately after the engine starts, the accumulator is in the process of storing pressure. The brake oil pressure caution lamp illuminates but the central warning lamp does not illuminate and the alarm buzzer does not sound.

Do not move the machine until the brake pressure becomes normal and the brake oil pressure caution lamp goes out. Keep the parking brake applied. Engine Oil Pressure Caution Lamp The engine oil pressure caution lamp (2) illuminates to warn the operator that the engine lubricating oil pressure has dropped. When carrying out the check before starting (starting switch at the ON position, engine stopped) This lamp does not illuminate. During operation (engine running) If the engine lubricating oil pressure goes down during operation, the engine lubricating oil pressure caution lamp and central warning lamp illuminate and the alarm buzzer sounds intermittently.

At the same time, “E03” is displayed on the top line of the character display and “CHECK RIGHT NOW” and “CALL” alternately on the bottom line for three seconds each. Stop the machine immediately in a safe place; stop the engine; and carry out inspection. 2-16 WA430-6