MAINTENANCE PROCEDURE MAINTENANCE If the track tension is not at the standard value, adjust it in the following manner. Adjustment Grease inside the adjusting mechanism is under high pressure. Grease coming from plug (1) under pressure can penetrate the body, causing injury or death. For this rea- son, do not loosen plug (1) more than one turn. Do not loosen any part other than plug (1). Furthermore, do not bring your face in front of the plug (1). If the track tension is not relieved by this procedure, please contact your Komatsu distributor for repairs. Increasing Track Tension Prepare a grease gun. 1. Pump in grease through grease fitting (2) with a grease gun.
(Grease fitting (2) forms one part with plug (1).) 2. To check if the tension is correct, run the engine at low idling, move the machine slowly forward (by an amount equal to the length of track on ground), then stop the machine. 3. Check the track tension again, and if the tension is not cor- rect, adjust it again. 4. Continue to pump in grease until dimension S becomes zero (0). If the tension is still loose, the pin and bushing are excessively worn, so they must be either turned or replaced. Please contact your Komatsu distributor for repairs. 4-30 WARNING