5 Maintenance Differential 1. Put a container under the oil drain hole (2) Remove the screw plugs of the oil drain hole (2) and the fill and check hole (1). Drain the oil. 2. Clean the screw plugs and equip with seals that are in perfect order. 3. Screw tight the screw plug (2). 4. Fill in oil through the fill and check hole (1), until the oil reaches the lower edge. 5. Screw tight the screw plug (1). 6. Perform this task at the front and the rear axles. Transfer box – changing oil Frequent contact between used oil and skin may cause skin lesions and other physical damage! Wear rubber gloves when changing the oil. Thoroughly wash off any oil adhering to your skin.
There is danger of severe accidents, if you perform mainte-nance work at a machine that has not been parked and secured correctly! Park the machine on a solid, even surface and secure it, before you start to perform maintenance work. Have an oil trough with a sufficient capacity ready. 1. Before you start maintenance work, park and secure the machine as described in the chapter "5.1. Maintenance guide" on page 5-2. 2. Unscrew the screw plugs (1) and (2) . 3. Drain the oil. 4. Clean the screw plugs and replace the gaskets. 5. Tightly screw in the screw plug (2). 6. Fill in oil via the check drill hole (1), until the oil reaches up to the bottom edge of the check drill hole. 7.
Tightly screw in the screw plug (1) Checking and adjusting the valve clearance Have the valve clearance checked and adjusted at an authorised Komatsu garage. 5-40 WA90-5 – VEAM270100 WARNING WARNING DANGER DANGER