776D, 777D and 777D HAA Off-Highway Truck/Tractors Power Train Transmission Control Caterpillar


Transmission Control
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776D, 777D and 777D HAA Off-Highway Truck/Tractors Power Train [SENR6912]
OPERATOR STATION
CONTROL GP-TRANSMISSION
776D, 777D and 777D HAA Off-Highway Truck/Tractors Power Train Transmission Control



Illustration 1g00461524

Transmission control




Illustration 2g00461567

Location of the shift lever switch




Illustration 3g00466290

Shift lever switch




Illustration 4g00643408

Location of the transmission gear switch




Illustration 5g00466292

Transmission gear switch in the NEUTRAL position

Except for the different pin numbers at the switch, the transmission gear switch and the shift lever switch operate similarly. Each switch is mechanically positioned with diodes that determine the current flow.

The shift lever switch provides the Electronic Programmable Transmission Control (EPTC II) with information about the transmission control position. The shift lever switch is mechanically connected to the transmission control inside the shift console.

The transmission gear switch sends a signal to the (EPTC II). The signal indicates the transmission gear that is currently engaged. The transmission gear switch is mechanically connected to the rotary actuator of the transmission hydraulic control.

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