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Drive range - First gear
In Drive 1, transaxle drive is via the input shaft to the clutch B. the elements of the transaxle function as follows:
The B clutch is engaged to drive the rear sun gear.
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The rear sun gear drives the front planetary gear carrier clockwise.
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The rear planetary gear carrier drives the front ring gear and front planetary gear carrier clockwise.
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Control
Clutch B engaged
In Park and Neutral solenoid valve 1, 2 are ON and EDS4, 6 are ON. As EDS 6 is ON, the oil which is supplied from the reduction valve flow to
the sixty two spool of the safety valve via the sixty port of the EDS, and flow clutch valve
B, input port holding valve B via the sixty three spool of the safety valve.
The oil that is supplied to input port (64) of the clutch valve presses the valve spool. As a result, line pressure flow to the 102 port to via the 101
port.
In this manner, clutch B is engaged, check ball is blocked the brake D direction.
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