General Information, Meritor Splitter and Range-Shift

Refer to the Meritor website for additional information, www.meritor.com.

13-Speed RMO Models

The Meritor RMO13–145A transmission has thirteen forward speeds and two reverse speeds. Each transmission consists of a 5-speed front section, and a 3-speed auxiliary section. The auxiliary section contains low and high range ratios, plus, an overdrive splitter gear. See Fig..

High Range

Low Range

Overdrive

Direct Drive

Splitter Control Button

Fig. 1, Meritor 13-Speed RMO Model Transmission Shift Pattern

All of the thirteen speeds are controlled with one shift lever. Built into the shift knob of the lever, are a range selection lever and a splitter control button (on the side of the shift knob), that control range selection and gear splits, respectively.

Low gear in the front section is used only as a starting ratio. The remaining four forward positions are used once in the low range and once in the high range. However, each of the four high range gear positions can be split with the overdrive ratio of the splitter gear. Ratios cannot be split while the transmission is in low range.