Great Wall hover, Service Manual

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Automatic transmission-43
Power transmission Automatic 4
th
-Gear locking
In automatic 4
th
–gear locking, the drive of transmission is same as that in automatic 4
th
–gear basically. But for the application of
variable torque locking clutch, it provides the variable torque drive without slide.
Control:
The automatic 4
th
–Gear locking is same as that in automatic 4
th
-Gear basically. But it should be described that when the automatic
4
th
-Gear is locked, it has the action for variable torque loop by solenoid valve S7.
When the solenoid valve S7 is opened, the variable torque clutch control valve is closed and allow the S7 loop oil flows to the
drainage port through the solenoid valve S7, then control the valve to move to the clutch engagement position.
The line pressure loop regulating oil from the torque converter clutch regulating valve flows into the combination side of torque
converter clutch directly.
The release oil of torque converter clutch is drained from the control valve of torque converter clutch..
The torque converter loop oil flows into the oil cooler and lubrication loop directly through the control valve of torque
converter clutch..
Refer to Figure 5.9 and Table 5.10.
Table 5.10 The participating condition of each unit in automatic 4 th -gear locking
Clutch
Name of participation unit