Everybody knows, grab belongs to heavy-duty project machine among them a kind, it is by many iron and steel the component is assembled rise, always metal, once working hours grew, plus maintain the job was not accomplished, appear very easily all sorts of different noise. 1, dig machine when turning to travel, poor fast implement sound is clear. 2, if dig machine appear in the low speed travel, meeting when turning especially " card, card " noise, but rise gradually when travelling speed hind, noise can disappear commonly. | | | Reason: Because cross axle journal wears away,this kind of circumstance is serious or break off cause. 3, dig machine is sharp when adjusting travel, appear " toot " noise, the noise when speed is reduced is serious, when turning, turn into again " Enenen " noise, it is tooth flank abrade is caused | | | Processing: Slight abrade can use oilstone or the file is amended, serious when should change gear | | | 4, dig machine do mix point-blank when turning to travel, bevel gear noise all is compared apparent. The reason is clearance of gear clench the teeth passes space of clench the teeth of small, gear not all | | | 5, if dig machine is be expert at arrhythmic appears when sailing " click, click " clash, relatively apparent when rate change is flabby, but when travelling speed is quite smooth, noise can disappear, this kind of condition is caused by gear clench the teeth