MAINTENANCE PROCEDURE MAINTENANCE Loosening Track Tension 0. It is extremely dangerous to release the grease by any method except the procedure given below. If the track tension is not relieved by this procedure, please contact your Komatsu distributor for repairs. 1. Loosen plug (1) gradually to release the grease. 2. When loosening plug (1), turn it a maximum of one turn. 3. If the grease does not come out smoothly, move the machine forwards and backwards a short distance. 4. Tighten plug (1). 5. 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 machine. 6.
Check the track tension again, and if the tension is not cor- rect, adjust it again. Road Liners or Rubber Shoes - Check 0. (Machine equipped with road liner or rubber shoe) If the road liners and rubber shoes are in the following condition, they must be repaired or replaced, so please con- tact your Komatsu distributor for repairs or replacement. Lug Height 0. If lug height "a" is reduced by wear, the drawbar pull will drop. If "a" is less than 5mm (0.2 in), replace with a new part. If the lug wears and the steel cord inside the shoe is exposed for two links or more, replace with a new part. (Machine equipped with rubber shoes) 4-28 WARNING