Operate the transmission reasonably and properly, and maintain it periodically, which are very important to ensure a safe and reliable driving and an extended transmission life, so please follow the operational requirements below:
1. Lubricating oil grade
The transmission should be filled with GL-5 gear oil specified in SAE 85W/90.
2. Correct oil level
Make sure that the oil level is up to the sight glass. The oil level can be inspected through the sight glass of the housing side and add oil until it spills out of the mouth.
3. Oil level periodical inspection
4. In order to prevent the lubricating oils of different types from chemical reaction, always replenish with the lubricating oil of the same type with the original one.
5. Lubricating oil change interval
In replacing the lubricating oil of the transmission, first completely discharge the existing lubricating oil in the transmission and clean the strainer assembly. For the new transmission, after 2,000~5,000 km running, the lubricating oil has to be replaced. Inspect the lubricating oil for its level and leakage after 10,000 km, replenish when necessary and clean the strainer. If the limited period (mileage) of the mandatory maintenance is exceeded, change the lubricating oil after driving for 25,000 km.
6. Working temperature
The transmission in its continuous working period should have a maximum temperature not more than 120°C, and a minimum temperature not less than -40°C. A working temperature more than 120°C may decompose the lubricating oil and shorten the service life of the transmission.
7. Dragging or sliding
While the transmission is working, its countershaft drives the oil pump to run, and with the splash lubrication, it can be lubricated completely. However, in the case that the truck is dragged with the rear wheel grounded and drivetrain connected, which may seriously damage the transmission planetary mechanism and the primary shaft locating elements due to lack of lubrication.To avoid such phenomena, notice that: never step on the clutch pedal to allow the truck skidding at natural. To drag the truck, either pull out the axle shaft or release the drive shaft, or drag with the driving wheel off the ground.
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