Eaton RTX-12510, Service Manual

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Upshifting
To
get to high range
pull button
UP
while in 5th speed,
then move lever
to 6th speed.
Upshifting
1. Move the gearshift lever to the neutral position.
2. Start the engine.
3.
Wait for air system to reach normal line pressure.
4. Now
look at the Range Control Button. If it is
up
push
it to the down position. (With the downward movement
of the button, the transmission will shift into low range.)
If the button
was
down when the truck was last used,
the transmission is already in low range.
5. Now start the vehicle and shift progressively through 1st,
2nd, 3rd and 4th to 5th.
6. When in 5th and
ready for the next upward shift, PULL
the Range Control Button UP and move the lever to 6th
speed. As the lever
passes through the neutral position,
the transmission will automatically shift from low range
to high range.
7. With the transmission in high range, you may now shift
progressively through 7th, 8th and 9th to 10th.
Downshifting
To
get to low range
push button DOWN
6th speed,
10
9
then move
8
7
lever to 5th speed.
6
speed.
RANGE
Downshifting
1. When shifting down, move the lever from 10th through
each successive lower speed to 6th.
2. When in 6th, and
ready for the next downward shift,
PUSH
the Range Control Button DOWN and move the
lever to 5th speed. As the lever
passes through the neu-
tral position,
the transmission will automatically shift
from high range to low range.
3. With the transmission in low range, shift downward
through each of the four remaining steps.
Driving tip: always start vehicle moving in first speed gear.
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