Industrial — WARNINGS, CAUTIONS, AND NOTES

WTEC III ELECTRONIC CONTROLS TROUBLESHOOTING MANUAL IMPORTANT SAFETY NOTICE IT IS YOUR RESPONSIBILITY to be completely familiar with the warnings and cautions used in this manual. These warnings and cautions advise against using specific service procedures that can result in personal injury, equipment damage, or cause the equipment to become unsafe. These warnings and cautions are not exhaustive. Allison Transmission could not possibly know, evaluate, or advise the service trade of all conceivable procedures by which service might be performed or of the possible hazardous consequences of each procedure. Consequently, Allison Transmission has not undertaken any such broad evaluation.

Accordingly, ANYONE WHO USES A SERVICE PROCEDURE OR TOOL WHICH IS NOT RECOMMENDED BY ALLISON TRANSMISSION MUST first be thoroughly satisfied that neither personal safety nor equipment safety will be jeopardized by the service proce- dures used. Also, be sure to review and observe WARNINGS, CAUTIONS, and NOTES provided by the vehicle manufacturer and/or body builder before servicing the Allison transmission in that vehicle. Proper service and repair is important to the safe and reliable operation of the equipment. The service procedures recommended by Allison Transmission and described in this manual are effective methods for performing troubleshooting operations.

Some procedures require using specially designed tools. Use special tools when and in the manner recommended. The WARNINGS, CAUTIONS, and NOTES in this manual apply only to the Allison transmission and not to other vehicle systems which may interact with the transmission. Be sure to review and observe any vehicle system information provided by the vehicle manufacturer and/or body builder at all times the Allison transmission is being serviced. WARNINGS, CAUTIONS, AND NOTES Three types of headings are used in this manual to attract your attention: NOTE: Is used when an operating procedure, practice, etc., is essential to highlight. Copyright © 2001 General Motors Corp. iii WARNING!

Is used when an operating procedure, practice, etc., which, if not correctly followed, could result in injury or loss of life. CAUTION: Is used when an operating procedure, practice, etc., which, if not strictly observed, could result in damage to or destruction of equipment.