MAINTENANCE PROCEDURE 4.9.1.i REPLACE RUBBER SHOES (Machine equipped with rubber shoes) Carry out this operation with two workers. The operator must move the machine in accordance with the signals from the other worker. The rubber shoes are replaced with the machine raised, so it is extremely dangerous if the machine is lowered by mistake during the replacement operation. During the replacement operation, never move the rubber shoe track except the rubber shoe track to be replaced. In addition, never go under or put any part of your body under the rubber shoe or track frame during the replace- ment operation.
To check that the track tension is correct, run the engine at low idling, move the machine forward a distance equal to the length of track on ground, then stop the ma- chine. IMPORTANT It is possible to switch from rubber to steel shoes. In any case, it is necessary to remove and adjust the shock absorber of the idler roller. For this operation, contact your Komatsu Dealer. Prepare a grease gun Prepare a steel pipe RUBBER SHOES REMOVAL It is extremely dangerous to release the grease by any method except the procedure given below. If the rubber shoe tension is not relieved by this procedure, please contact your Komatsu Dealer for re- pairs.
Check that all the grease has been released before rotating the sprocket to remove the rubber shoe. 1. Raise the chassis with the boom and arm. When doing this, operate the levers slowly. 189 WARNING WARNING