Upshifting
p3 dm 14.01.003
- Position the gear shift lever in neutral. Start the engine, and bring the air system pressure up to 100 to 120 psi (689 to 827 kPa).
- Position the range preselection lever down, into low range.
See Fig..
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High Range
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Low Range
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Overdrive (forward)
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Direct Drive (rearward)
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Splitter Control Button
Fig. 1, Eaton Fuller 13-Speed Transmission Shift Pattern
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High Range
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Low Range
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Overdrive (forward)
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Direct Drive (rearward)
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Splitter Control Button
Fig. 2, Eaton Fuller 18-Speed Transmission Shift Pattern
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- Make sure the splitter control button is in the direct (rearward) position. See Fig..
- For 13-speed transmissions:Press the clutch to the floor, shift into low or 1st gear; then engage the clutch, with the engine at or near idle speed, to start the vehicle moving. Accelerate to 80 percent of engine governed speed.For 18-speed transmissions:Press the clutch to the floor, shift into low; then engage the clutch, with the engine at or near idle speed, to start the vehicle moving.To shift from low direct to low overdrive, move the splitter control button into the overdrive (forward) position, then immediately release the accelerator. Press and release the clutch pedal. After releasing the clutch, accelerate again.
- For 13-speed transmissions:Shift upward from low to 1st gear, 2nd, etc. until 4th gear, double-clutching between shifts, and accelerating to 80 percent of engine governed speed. See Fig..For 18-speed transmissions:Shift upward from low overdrive to 1st direct by first moving the splitter control button into the direct (rearward) position ( see Fig.). Move the shift lever, double-clutching, to the 1st gear position.Continue upshifting through the shift pattern. Double-clutch during lever shifts (1st to 2nd to 3rd to 4th); single-clutch during split shifts (1st direct to 1st overdrive, etc.).
- When in 4th gear (13-speed transmissions) or 4th overdrive
(18-speed transmissions) and ready to shift up to 5th gear, use the
range shift lever as follows:For 13-speed transmissions:While in 4th gear, pull the range shift preselection lever up, into high range. The transmission will automatically shift from low to high range as the shift lever passes through neutral. Then, disengage the clutch; double-clutch through neutral; move the shift lever to 5th gear; engage the clutch, and accelerate the engine.For 18-speed transmissions:While in 4th overdrive, pull the range shift preselection lever up, into high range. The transmission will automatically shift from low to high range as the shift lever passes through neutral.Move the shift lever, double-clutching, to the 5th gear position. Just before making final clutch engagement, move the splitter control button to the direct (rearward) position; then engage the clutch and accelerate. Do not move the control button while the shift lever is in neutral.
- Shift up through the high range gears as follows:For 13-speed transmissions:To shift from 5th direct to 5th overdrive, move the splitter control button ( see Fig. ) into the overdrive (forward) position, then immediately release the accelerator. Press and release the clutch pedal. After releasing the clutch, accelerate again.Continue upshifting through the shift pattern. Double-clutch during lever shifts (6th to 7th to 8th); single-clutch during split shifts (6th direct to 6th overdrive, etc.).For 18-speed transmissions:To shift from 5th direct to 5th overdrive, move the splitter control button ( see Fig. ) into the overdrive (forward) position, then immediately release the accelerator. Press and release the clutch pedal. After releasing the clutch, accelerate again.Continue upshifting through the shift pattern. Double-clutch during lever shifts (6th to 7th to 8th); single-clutch during split shifts (6th direct to 6th overdrive, etc.).
Note: