General Information, Eaton Range-Shift

Refer to the Eaton website for additional information, www.roadranger.com.

To operate a range-shift transmission, move the shift lever through all of the low gear positions, then activate the range switch. This provides an additional set of ratios in the high range. Using the same shift lever positions as used in low range, move the shift lever through each position as before. On some models, the initial low gear is used only in low range.

Eaton Fuller Range-Shift transmissions are not synchronized in the front section, but the range section is synchronized to prevent grinding gears during range shifts.

9-Speed RT, RTO, and RTX Models

Eaton Fuller 9-speed transmissions have a 5-speed front section, and a 2-speed rear range section. On the RT-8609 and all "A" and "B" ratio transmissions, the low gear is used only as a starting ratio. On "R" ratio transmissions, the high gear is used only as the top gear. The remaining gear positions of the above transmissions are used once in the low range and once in the high range. See Fig. for the shift patterns.

10-Speed RT, RTO, RTLO, and RTX Models

Eaton Fuller 10-speed transmissions have ten selective, evenly-spaced forward ratios. Each transmission has a 5-speed front section, and a 2-speed rear range section. The ten forward speeds are obtained by twice using a 5-speed shift pattern: the first time in low range, the second time in high range. See Fig. for the shift patterns.

All RT and RTX-B Transmissions

All RTO Transmissions

All RTX-R Transmissions

High Range

Low Range

Fig. 1, Eaton Fuller 9-Speed Transmission Shift Patterns

All RT and RTX Transmissions

All RTO Transmissions

High Range

Low Range

Fig. 2, Eaton Fuller 10-Speed Transmissions Shift Patterns