Alternate Droop - Doosan DX140R Shop Manual

Alternate Droop

Feature Description
Alternate Droop allows the droop characteristics to be changed
for the automotive (minimum or maximum) and for Variable
Speed (VS) governor or All Speed Governor. In general less
governor droop (lower percentage) provides a more responsive
governor for more precise engine control. More governor droop
(higher percentage) provides smoother shifting and smoother
mechanical clutch engagement. This feature, depending on
Original Equipment Manufacturer (OEM) availability, provides
the user the ability to select multiple breakpoint speeds and the
droops associated with those speeds by way of an OEM-
provided switch.
Driver Activation/Deactivation
Alternate Droop is
CELECT¢‚Plus), but uses a switch to toggle between the
alternate droop settings. Depending on the application the
alternate droop switch can be a 2 or 3 position switch. Toggling
the switch into the 2nd and 3rd positions will activate the 2nd
and 3rd droop settings accordingly.
Interaction with other Features and Parameters
The Vehicle Speed Droop feature uses the droop settings for
this feature.
Disadvantages
• Driver complains of low power.
• Driver complains of poor or unexpected throttle
reaction.
Visual Aids
Reference
Number
1
2
3
4
5
6
7
8
QSB4.5 Engine
Page 42
calibration activated
Description
Torque
Engine Speed (RPM)
Low Idle Speed
Maximum Torque Curve
High speed Break Point
Normal Droop
Alternate Droop
Alternate Droop (available)
(except for
SP001671