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Automatic transmission-39 Power transmission locking of automatic and manual 3 rd -Gear When the automatic 3 rd -Gear and manual 3 rd -Gear is locked, the drive of transmission is basically same as that in automatic 3 rd - Gear. But it provide the variable torque drive without slide for the application of torque converter locking clutch. Control: The control for the automatic 3 rd -Gear locking and manual 3 rd -Gear locking is basically same as that for automatic 3 rd –Gear. But it should be described additionally that the automatic 3 rd -Gear and manual 3 rd -gear locking needs the action for variable torque clutch loop by solenoid valve S7. When the solenoid valve S7 is opened, the variable torque clutch control valve is closed and allow the oil feed of S7 loop pass Refer to Figure 5.7 and table 5.8. Table 5.8 Participating condition of each unit in automatic and manual 3 rd -Gear locking Automatic 3 rd -Gear locking and manual 3 rd -gear locking Name of participation unit
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