. MAINTENANCE SERVICE PROCEDURE that aftercooler (1) 4. Tighten locknut (3). 4 - 32 ADJUSTING RUBBER STOPPER FOR AFTERC If a ftercooler (1) m oves even when it is locked , adjust rubber s topper (2 . Push the botto m of aftercooler (1) to lock i . Loosen locknu t (3) of rubber stopper (2). . Adjust the heig ht of rubber stopper (2) so . does not move REMARK Push rubber stopp er (2) to adjust so that it contacts aftercooler (1). . There is one ru bber stopper (2) each on th e left and right, s o repeat Steps 1 - 4 to a djust the rubbe r stopp er on the opposite si de. .
After adjusting the rubber stopper on the le ft and right, pus h the bottom of aftercool er (1) and check that it does not move. AFTERCOOLER TIL T SWITCH (If equipped) Fo r machines with t he optional equipment, Step 2 of the method for tilting and swingin g the cooler can be used to tilt the aftercooler witch on the left side of the engine room to tilt electrically. Press aftercooler s the aftercooler elec trically approx. 17 degrees ; press (b) to return the aftercooler to it s original position.
CHECK ELECTRICAL INTAKE AIR HEAT Before the start of the cold season (once a ye ar), contact your Komatsu distributor to h ave the electrical intak e air heater repaired or checked for dirt or disconne