Appendix K. TRANSMISSION/TRANSMISSION CONTROLS ADAPTABILITY CHART

TM 9-2320-366-20-3

APPENDIX K

TRANSMISSION/TRANSMISSION CONTROLS ADAPTABILITY CHART

Section I. INTRODUCTION

K-1. INTRODUCTION

This appendix lists the various transmission controls and configuration modifications that may be required to permit

the transmission to function correctly. This appendix will guide the mechanic through the hardware selection process

by identifying compatibility issues between the transmission controls (WTEC II/WTEC III) and the numerous revisions

of the Allison MD3070PT transmission (PRE-ID w/ 24-pin connector, PRE-ID w/ 31-pin connector, TID 1, TID 2, and

TID 3). Refer to Figure 1. After replacing any component of the transmission controls or the transmission assembly,

perform calibration procedures in TM 9-2320-366-20-4 paragraph 8-2 or 8-3.

K-2. EXPLANATION OF COLUMNS

a. Column (1) - Installed Controls or Controls Being Installed. This column lists all of the variables concerning

which version of transmission controls are installed in the vehicle, or may need to be installed, to communicate

correctly with the transmission.

b. Column (2) - Installed Transmission or Transmission Being Installed. This column lists all of the various

revisions of the Allison MD3070PT transmissions that may be installed in the vehicle.

c. Column (3) - Required Modification. This column lists the various electrical interface (hardware) modifications

that may be required to allow the transmission controls to communicate with the transmission.

K-3. HOW TO USE THIS CHART

a. Determine which controls and transmission are installed in the vehicle.

b. Determine which component requires replacement.

c. Read across the row to column (3) to determine the required modification.

Section II.

TRANSMISSION/TRANSMISSION CONTROLS ADAPTABILITY CHART

(1)

(2)

(3)

Installed Controls or

Installed Transmission or

Required Modification

Controls Being Installed

Transmission Being Installed

(Refer to Section III)

WTEC II

PRE-ID w/ 24-pin connector

No modification required.

(with 24-pin connector)

(transmission serial number prior to

6510032369)

WTEC II

PRE-ID w/ 31-pin connector

Install 31-pin connector.

(with 24-pin connector)

(transmission serial number

6510032369 to 6510090785)

WTEC II

TID 1

Install 31-pin connector.

(with 24-pin connector)

(transmission serial number

6510090786 to 6510142171)

WTEC II

TID 2

Install 31-pin connector and replace

(with 24-pin connector)

(transmission serial number

transmission internal wiring harness.

6510142172 to 6510262116)

Change 1

K-1