Eaton® Range-Shift Transmissions - freightliner M2 Plus 2023 Manual

Manual Transmissions, Clutch, and Transfer Cases
Eaton Fuller 7-speed T models are not synchronized.
They have seven forward speeds and one reverse.
See Fig. 15.3 for the shift pattern.
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Fig. 15.3, Shift Pattern, 7-Speed T Models
These transmissions are designed for use with on-
highway, fuel economy engines where a minimum of
shifting is desired and less gear reduction is
acceptable.
Operation, Straight-Shift
1. Always use first gear when starting to move the
vehicle forward.
IMPORTANT: Do not rest your foot on the clutch
pedal while driving. This causes partial clutch
disengagement which could cause premature
clutch wear.
2.
On synchronized models, press the clutch pedal
to the floor when shifting gears. Double-clutching
is unnecessary.
On unsynchronized models, press the clutch
pedal to the floor to contact the clutch brake only
when engaging the first or reverse gears.
NOTE: If the vehicle is moving when shifting,
press the clutch pedal just far enough to
disengage the clutch. Pressing it to the floor will
engage the clutch brake, if so equipped,
causing premature clutch brake wear.
3. To upshift, do the following steps:
3.1
Accelerate to engine governed speed.
3.2 On synchronized models, disengage the
clutch and move the shift lever to second
gear.
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On unsynchronized models, disengage the
clutch and move the shift lever to neutral.
Engage the clutch again. With the shift
lever in neutral, disengage the clutch and
move the shift lever to second gear.
3.3 Engage the clutch and note the drop in
engine rpm before accelerating up to
engine governed speed again.
3.4
Continue upshifting using the same
sequence described in the previous step.
Follow the pattern on the shift lever.
4. To downshift, do the following steps:
4.1 Wait until the engine speed drops to the
rpm noted immediately after the upshift.
4.2
On synchronized models, disengage the
clutch and move the shift lever to the next
lower gear.
On unsynchronized models, disengage the
clutch and move the shift lever to neutral.
Engage the clutch again. With the shift
lever in neutral, disengage the clutch and
move the shift lever to the next lowest
gear.
4.3 Engage the clutch smoothly.
4.4
Use the sequence described above to
shift progressively down through each
successive lower gear, as driving
conditions require.
Eaton® Range-Shift
Transmissions
Refer to the Eaton website for additional information,
http://dtna.info/EatonTransmissionInfo.
General Information, Range-Shift
Eaton Fuller 9-Speed Models
Eaton Fuller 9-speed range-shift models are not
synchronized. They have nine forward speeds and
two reverse speeds. The shift lever controls five
forward gears and one reverse gear in the
transmission front section, and the range lever
controls a LO and HI range in the two-speed
auxiliary section. The first position in the front section
is used only as a starting gear. The other four ratios
are used once in LO range and once again in HI
range. See Fig. 15.4 for the shift patterns.
15.2