Chery T21 2014 Service Manual page 841

Precautions
1. During removal and installation, make sure that the gear shift lever is at "N" position.
2. When installing the gear shift arm and transmission range sensor, use a proper tool to fix them, and then
tighten bolts to the specified torque.
3. The components of transmission are of high precision, so take care in removal and installation and do not
scratch or damage any component.
4. When installing the oil seal, apply force evenly and do not cause deformation or damage of oil seal.
5. Keep transmission components clean when removing and installing transmission components to prevent
foreign matter from entering the transmission.
6. When installing the torque converter onto transmission, make sure that the oil pump drive slot is installed in
place; otherwise it will cause abnormal damage to the transmission.
7. When assembling engine and transmission, make sure that the four connecting bolts of engine flywheel
and torque converter are not ignored.
8. When assembling engine and transmission, make sure that all connecting bolts are installed correctly and
completely, and the torques meet the specifications.
9. When disassembling and assembling engine and transmission, make sure that the torque converter does
not drop down.
10.When assembling engine and transmission, make sure that the dust baffle is not ignored.
11. When replacing transmission sensors and oil seals, make sure that they are installed in place and bolt
torques meet the specifications.
12.Take measures to avoid foreign matter entering the transmission, when removing or installing the cooling
oil pipes and radiator. And check the fluid level and make sure that there is no leakage after installation.
Operation
Speed Ratio Change Principle
The CVT uses a metal belt and V-shape drive and driven pulleys with width-variable slot for the power
transition. The drive and driven pulleys consist of movable and fixed discs. The pulley close to the oil cylinder
could slide on the pulley shaft and the one on other side is fixed. The movable and fixed discs are of cone
structure. Their cones form a V-shape slot for engagement of the V-shape metal belt. It changes the working
radius of the engagement of the cones and V-shape metal belt to shift the speed by the axial movement of the
movable disc when working.
Right illustration shows the low speed ratio:
1. Input pulley
2. Output pulley
3. Input circle
4. Output circle
Chery Automobile Co., Ltd.
18 - QR019CHB CVT
Transmission
oil passage
Low
pressure
1
oil
V-belt
2
Clamping
pressure oil
Low speed ratio
18
3
4
RT21180040
7
18–