Curtis 1244 Manual, Rev. E
55
6 — VEHICLE PERFORMANCE ADJUSTMENT
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-A Tuning the rottle Deadband
1. Jack the vehicle wheels up o the ground so that they spin freely.
2. Plug the programmer into the controller and turn on the key-
switch and interlock switch (if used).
3. When the programmer instructs you to select a menu, select the
Monitor Menu. e rottle % should be visible at the top of
the display. You will need to reference the value displayed here.
4. Scroll down until the Forward Input is visible. e display should
indicate that the forward switch is O.
5. Slowly rotate the throttle forward until the display indicates
that the forward switch is On. Use care with this step as it is
important to identify the threshold throttle position at which
the forward switch is engaged and the controller recognizes the
forward command.
6. Without moving the throttle, scroll up to display the rottle
% and read the value shown. is value should be zero. If the
rottle % value is zero, proceed to Step 7. If it is greater than
zero, the rottle Deadband parameter must be increased and
the procedure repeated from Step 5 until the rottle % is zero
at the forward direction engagement point.
7. While observing the rottle % value in the programmer’s
Monitor Menu, continue to rotate the throttle past the forward
switch engagement point. Note where the rottle % value begins
to increase, indicating that the controller has begun to supply
drive power to the motor. If the throttle had to be rotated fur-
ther than desired before the rottle % value began to increase,
the rottle Deadband parameter value must be decreased and
the procedure repeated from Step 5. If the amount of rotation
between the point at which the Forward switch is engaged and
the rottle % value begins to increase is acceptable, the rottle
Deadband is properly tuned.
8. If a bidirectional (wigwag) throttle assembly is being used, the
procedure should be repeated for the reverse direction. e
rottle Deadband value should be selected such that the throttle
operates correctly in both forward and reverse.
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