Continue downshifting from 4th overdrive to 4th
direct, then 4th direct to 3rd overdrive, 3rd over-
drive to 3rd direct, etc. Single-clutch when split
shifting (direct to overdrive, overdrive to direct).
Double-clutch when making lever shifts (4th to
3rd, 3rd to 2nd, etc.).
IMPORTANT: Never use the clutch brake when
downshifting, or as a brake to slow the vehicle.
Eaton Fuller 10-Speed Range-
Shift Transmissions
For complete information on Eaton transmissions, go
to the Eaton Roadranger website, www.roadranger-
.com
.
General Information, Eaton Fuller
Range-Shift
To operate a range-shift transmission, move the shift
lever through all the low gear positions and then acti-
vate a range switch to provide an additional set of
ratios in the high range. Using the same shift lever
positions as in low range, move the shift lever
through each position as before. On some models,
the initial low gear is often used only in low range.
IMPORTANT: Not all lever positions are used in each
range and the shift patterns vary between transmis-
sions. Be sure to read the shift pattern decal on the
dash for the operating instructions for the specific
transmission installed in your vehicle.
10-Speed FR/FRO and RT/RTO/RTX
Models
Eaton Fuller 10-speed transmissions have 10 selec-
tive, evenly spaced forward ratios. Each transmission
has a 5-speed front section and a 2-speed rear
range section. The 10 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. 13.3 for the shift patterns.
NOTE: The 4th/9th and the 5th/10th shift posi-
tions in the RT (direct ratio) and RTX (overdrive
ratio) transmissions are directly opposite in the
RTO (overdrive ratio) transmissions
Operation Tips, Eaton Fuller Range-
Shift
The following tips highlight important operation prin-
ciples.
•
When operating off-highway, or under adverse
conditions, always use low gear (if so
equipped) when starting to move the vehicle.
When operating on-highway, with no load, or
under ideal conditions, use 1st gear when
starting to move the vehicle (except when
equipped with a 9-speed RTO transmission,
then always start in low gear).
For all conditions, use the highest gear that is
still low enough to start the vehicle moving with
engine idling, and without slipping the clutch
excessively.
•
Use the clutch brake to stop gear rotation
when shifting into low (or 1st) or reverse when
the vehicle 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 par-
tial disengagement of the clutch is necessary
to break engine torque.
•
Do not make range shifts with the vehicle mov-
ing in reverse gear.
•
Do not shift from high range to low range at
high vehicle speeds.
•
Double-clutch between all upshifts and down-
shifts.
4
N
7
2
9
6
1
8
3
10
5
R
HI
LO
f261053
A
B
12/15/1999
A. High Range B. Low Range
Fig. 13.3, Eaton Fuller 10-Speed Transmission Shift
Patterns
Manual Transmissions and Clutch
13.4
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