MAINTENANCE 24.7.2 REPLACE TRANSMISSION OIL FILTER ELEMENT 1. Remove drain plug (1) at the bottom of the filter case, and drain the oil. After draining the oil,reinstall and tighten the plug. Drain plug . . . . . . . . . . . . 108 ± 15 N 2. Hold case (2) and loosen center bolt (3), then remove case (2). Be sure to use a genuine Komatsu filter element. Replace the filter gasket and O-rings with new parts. Coat the gasket and O-rings with clean engine oil before installing. 3. Remove the element, and clean the inside of the case. Assemble a new element, then install the case.
Before tightening center bolt (3), install bolt washer (4) so that its chamfered surface faces the hexagonal head of the center bolt. Be careful not to apply excessive torque to center bolt (3). Center bolt . . . . . . . . . . . . . 76 ± 12 N 4. Run the engine for a short time at idle, then turn the engine off and check that the oil is at the specified level. For details, see 24.2.2 CHECK TRANSMISSION OIL LEVEL, ADD OIL on page 3-33. 24.7.3 LUBRICATE CENTER DRIVE SHAFT SPLINE (1 PLACE) WARNING With the work equipment in a stable condition, turn OFF the machine and apply the lock for the work equipment control levers.
Apply the parking brake, and lock the front and rear frames together with the safety bar and pin. 1. With a grease gun, pump in grease through the fittings located by the arrow. 2. After lubricating, wipe off excess grease. REMARKS: Lubricate the center drive shaft spline as directed, even on machines with optional greasing systems. 3-56 WA320-3MC