Programming – Eaton Top 2 Override with Cruise Switch

Description:
The Eaton Top 2 Override with Cruise Switch parameter is programmed as either Yes or No. When programmed to Yes, this parameter disables the top 2 mode when the cruise switch is OFF and the transmission is not yet in the top 2 gears. When the cruise switch is in the ON position, the top 2 mode is enabled. If the cruise switch is in the OFF position while in one of the top 2 gears, the ECM will go into a hold mode where the transmission will not be shifted from the currently selected gear.

Available:
C-10, C-12, C-15, C-16, C11, C13, C15 heavy duty engines

Range:

Note: This feature is unavailable when the Transmission Style parameter is not programmed to Eaton Top 2.

Advantages:
The Eaton Top 2 Override with Cruise Switch parameter gives the operator more control over the transmission shifting in vehicles which are equipped with Eaton Top 2 transmissions.

Disadvantages:
Extra consideration should be made when cresting a hill to avoid the top 2 feature from downshifting prior to cresting a hill. See recommendations below for further details.

Recommendations:
The hold mode mentioned above is typically used when cresting the top of a hill. Good driving habits suggest lugging the engine back up to 200 rpm below peak torque in the current gear if cresting a hill is possible within a short period of time. In order to do this, the operator must override the automatic top 2 shifting to hold the transmission in top gear. If not, the top 2 feature will perform a downshift prior to cresting the top of the hill.

 

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