FILTER ELEMENT-AIR 3370790 - Caterpillar

On-Highway Transmission:
CX28 (S/N: TBB1-UP; T3X1-UP)
CX31 (S/N: D9F1-UP; D9R1-UP; E2R1-UP; PTT1-UP; EBW1-UP; PTW1-UP; B3X1-UP; PTX1-UP)
CX31 HT (S/N: HTC1-UP)
CX35 (S/N: W3X1-UP)
Description of Change: The process for performing the clutch calibration on the CX On-Highway Transmissions have changed with the release of Cat® Electronic Technician (Cat ET) 2012C.Adaptable To: The steps used to initiate clutch calibration for the CX On-Highway Transmissions have changed. Following the steps as described below will allow the calibration to be performed properly. These changes will be effective with the release of Electronic Technician 2012C.This procedure is used in order to optimize the quality of shifts. The procedure must be performed under the following conditions:
After replacing the engine horsepower rating.
Perform the procedure after replacing the ECM or servicing the ECM.
Perform the procedure after exchanging the ECM from one machine to another machine.
After replacing or servicing any of the transmission clutches, lock-up clutch, or oil system (seals, pumps, ECPC valves, oil cooler, main relief valve).Note: The calibration procedure will require the vehicle to be driven. Shift quality will improve throughout the calibration process and stabilize to a consistent level as calibration is completed
Illustration 1 g03301637
Screen capture of ET
Illustration 2 g03301640
Screen capture of Cat ET
Illustration 3 g03301642
Screen capture of Cat ET
Illustration 4 g03301638
Screen capture of Cat ET showing a fully calibrated transmission