EVERY 500 HOURS SERVICE b. TRANSMISSION OIL FILTER c. FAN BELT Check the V-belt and when the following conditions exist, exchange the V-belt: When the V-belt makes contact with the bottom of the groove in each pulley. When cracking and peeling of the V-belt occurs. For details of the replacement procedure, refer to ADJUST- MENT (replacement of fan belt and adjustment of auto tensioner). An auto tensioner is installed, so it is unnecessary to adjust the fan belt. 1. Loosen the bolt and open the side panel. Remove drain plugs (1) (6 pieces) at the bottom of the filter case, and drain the oil. After draining the oil, tighten the plug. Be careful not to apply excessive torque to center bolt (3).
Tightening torque: 7 5.5 +- 1.5 kgm Run the engine for a short time at idling speed, then stop the engine. Check that the oil is at the specified level (for details, see WHEN REQUIRED). Use a genuine Komatsu element. Replace the filter gasket and O- rings with new parts. Coat the gasket and O-rings with clean engine oil before installing. 2. 3. Hold case (2) and loosen center bolt (3), then remove case (2). 4. Remove the element, and clean the inside of the case. Assemble a new element, then install the case. - 88 - W-04302