Whether the transmission is in a good condition or not relates to the performance of the whole machine. Thus, besides routine maintenance, pay attention to the following items:
1. Working oil level of the transmission
Before starting the engine, inspect two oil drainage cocks on right side of the transmission, the upper cock shows the highest oil level, the lower cock shows the lowest oil level. Ensure that the oil level is between the upper cock and the lower cock after oil filling.
2. Working oil pressure
The working oil pressure of the transmission is 1.08-1.47 MPa. If it is abnormal, it shall be checked. The abnormal working pressure of the transmission clutch is related to the leakage of the transmission pump and the blockage of the transmission valve. If the pressure is excessively low, the clutch friction disc will slide and be worn till the machine stops operating, thus it should be noted during the maintenance process.
3. Oil Temperature
Generally, the operating and running temperature shall not be over 110℃, if any, the engine shall be stopped to cool and inspect.
4. After the running-in period, generally after running for 600 hours, the oil shall be replaced for the transmission. But if the oil is deteriorated or mixed with foreign matters when being inspected, the transmission shall be cleaned, inspected and replaced with new oil of the specified brand.
5. The torque converter oil filter shall be cleaned or replaced frequently.