John Deere POWERTECH 4045 - Manual (Page 113)

Engine Operation - Except 4.5L “270” Engines
OURGP11,0000079 –19–27JUL06–1/3
Changing Engine Speed
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Changing Engine Speed On Earlier Panel (Left) or Later Panel
(Right)
A—High-Low Speed Select Rocker Switch
B—Bump Speed Enable Rocker Switch
C—Speed Select Rocker Switch
D—Analog Throttle Control (Optional)
NOTE: Earlier engines have a 2-position rabbit-turtle
throttle switch, which is not adjustable. These
throttles allows operation only at the preset rated
speed or at idle using the single switch (A).
Changing from slow to fast speed using Standard
High-Low Speed Select Rocker Switch (A) (If
equipped):
•
For slow speed, press lower half of switch (indicated by
turtle symbol).
•
For fast speed, press upper half of switch (indicated by
rabbit symbol).
NOTE: To adjust preset fast or slow speeds for High-Low
Speed Select Rocker Switch:
1. Select fast (rabbit) or slow (turtle) position on
High-Low Speed Select Rocker Switch (A).
2. Press and hold top or bottom half of Bump
Speed Enable Rocker Switch (B) while using
Speed Select Rocker Switch (C).
3. Use Speed Select Rocker Switch (C) to bump
engine speed up (+) or down (-).
NOTE: Once the speed has been set, the Bump Speed
Enable Switch (B) must be pressed and released
three times within two seconds to commit the new
slow or fast speed to memory. If not done, the
engine’s new slow or fast speed will only be
effective until the key switch is shut off. Then the
speed will revert to its previous setting.
Changing from slow to fast speed using Adjustable
High-Low Speed Select Rocker Switch (A) (If
equipped):
Later engine panels (shown at right) have an adjustable
three-position rocker switch (A) that can be used to
select slow idle, fast idle, or an adjustable (“ADJ”)
intermediate speed.
•
For slow speed, press lower half of rocker switch
(indicated by turtle symbol).
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