False Warning for Low Transmission Oil Level on Some Off-Highway Trucks{3101, 7422} Caterpillar

Introduction

The problem that is identified in the technical information bulletin that follows does not have a known permanent solution. Until a permanent solution is known, use the solution that is identified below.

Problem

Reports have been received from the field of false warnings of low transmission oil on some 793D Off-Highway Trucks. When you check the sight gauges, the oil level is correct. Do not overfill the transmission in order to eliminate the false warnings. When you overfill the transmission, permanent damage can be done to the transmission and improper transmission operation can occur.

Solution

If the false warnings of low transmission oil occurs, install a jumper wire in order to close the circuit. The jumper wire will disable the 172-8660 Liquid Level Switch (Torque Converter) ( Transmission Oil) that is part of the 240-7186 Torque Converter Gp .

Fabricate the jumper wire from the parts that are listed in Table 1. The parts are available through the parts distribution system. Remove the connector from the 172-8660 Liquid Level Switch (Torque Converter) ( Transmission Oil). Fasten the connector to the wiring harness. Install the jumper wire.