freightliner cascadia, Driver Manual, Page: 139 / 238

1.
When operating off-road, or under adverse condi-
tions, always use low gear when starting to move
the vehicle forward.
When operating on-highway, with no load, or
under ideal conditions, use 1st gear when start-
ing to move the vehicle forward.
For all conditions, use the highest gear that is
still low enough to start the vehicle moving with
the engine at or near idle speed, and without
slipping the clutch excessively.
2. Use the clutch brake to stop gear rotation when
shifting into low (or 1st) or reverse when the ve-
hicle is stationary. The clutch brake is actuated
by depressing the clutch pedal all the way to the
floor.
For normal upshifts and downshifts, only a partial
disengagement of the clutch is necessary to
break engine torque.
3. Use double-clutching between all upshifts and
downshifts that require movement of the shift
lever. Splitting of the high range gears does not
require movement of the shift lever.
4. Never move the shift lever into low gear while in
high range.
5. Never move the splitter control button while in
neutral.
6. Do not preselect with the splitter control button;
after moving the control button, complete the
shift immediately.
7. Except when downshifting from 5th direct to 4th
gear, never push the range preselection lever
down into low range while operating in high
range—the splitter will become inoperative.
8. Do not shift from high range to low range at high
vehicle speeds.
9. Do not make range shifts with the vehicle moving
in reverse gear.
10. Never attempt to move the range preselection
lever with the gear shift lever in neutral while the
vehicle is moving. Preselection with the range
preselection lever must be made prior to moving
the shift lever out of gear into neutral.
11. After your shifting ability improves, you may want
to skip some of the ratios. This may be done
only when operating conditions permit, depend-
ing on the load, grade, and road speed.
Upshifting
1. 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).
2. Position the range preselection lever down, into
low range. See
Fig. 14.2 .
3. Make sure the splitter control button is in the di-
rect (rearward) position. See
Fig. 14.2 .
4. 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 (for-
ward) position, then immediately release the ac-
celerator. Press and release the clutch pedal.
After releasing the clutch, accelerate again.
5. For 13-speed transmissions:
Shift upward from low to 1st gear, 2nd, etc. until
4th gear, double-clutching between shifts, and
N
R
1
Dir
5
Dir
5
OD
1
OD
3
Dir
7
Dir
7
OD
3
OD
2
Dir
6
Dir
6
OD
2
OD
4
Dir
8
Dir
8
OD
4
OD
LOW
Dir
LOW
OD
A
B
C D
1
03/13/96 f260157a
A. High Range
B. Low Range C. Overdrive (forward)
D. Direct Drive (rearward)
1. Splitter Control Button
Fig. 14.2, Eaton Fuller 18-Speed Transmission Shift
Pattern
Manual Transmissions and Hydraulic Clutch
14.2