24. SERVICE PROCEDURE When loosening tension ¤ WARNING 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 dis- tributor. 1. Remove both bolts 1 , then remove cover 2 . NOTICE When removing cover 2 , be careful not to let any dirt get inside. There is a safety label stuck to the back of cover 2 . Be careful not to damage the safety label. 2. Loosen plug 4 gradually to release the grease. 3. Turn plug 4 a maximum of one turn. 4. If the grease does not come out smoothly, move the machine backwards and forwards a short distance. 5. Tighten plug 4 . 6.
To check that the correct tension has been achieved, move the machine backwards and forwards. 7. Check the track tension again, and if the tension is not correct, adjust it again. When removing track ¤ WARNING Depending on the situation, the operation to remove the track may be extremely dangerous. Before removing the track, if the procedure above ”When loos- ening tension“ does not loosen the track tension, please contact your Komatsu distributor for repair. 3-30