TM-9-2320-283-34-1

TM 9-2320-283-34-1

EQUIPMENT DESCRIPTION AND DATA.

1-7.

EQUIPMENT CHARACTERISTICS, CAPABILITIES, AND FEATURES (Continued).

Transmission (Continued).

Second Clutch, Third Clutch, and Center Support (Continued).

Eight clutch plates are required for the third clutch (four internally splined and four externally toothed plates).

The internally splined plates are splined to the outside diameter of the fourth clutch housing and are free to

rotate.

The externally toothed plates are anchored against rotation to the transmission housing.

Thirteen clutch plates are required for the second clutch.

Six internally splined plates are splined to the

outside diameter of the front carrier assembly and are free to rotate.

The seven externally toothed clutch

plates are anchored to the transmission housing and cannot rotate.

When hydraulic pressure is directed through the oil passages in the center support to the back side of third

clutch piston, the clutch plates are compressed together.

This locks the fourth clutch housing to the

transmission housing, which prevents the fourth clutch housing and attached components from rotating.

With

the application of the forward clutch in conjunction with third clutch, a reaction within the planetary gearing will

produce a forward rotation to the output shaft.

When hydraulic pressure is directed through the oil passages in the center support to the front side of second

clutch piston, the clutch plates are compressed together.

This locks the front planetary carrier to the

transmission housing, which prevents the carrier from rotating.

With the application of the forward clutch in

conduction with the second clutch, a reaction within the planetary gearing will produce a forward rotation to the

output shaft.

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