Speed Control; Pedal-Up Features; Walk Away Feature; Anti Roll Back Feature - Cushman 632904 Service Manual

Read all of Section B and this section before attempting any procedure. Pay particular attention to Notices, Cautions, Warnings and Dangers.
PERFORMANCE
NOTICE
The vehicle will operate only when the Run - Tow/Mainte-
nance switch is in the 'RUN' position. "Diagnostic Mode Fea-
ture" on page 2
The vehicle's top speed is sensed and regulated
directly by the controller and the feature to slow the
vehicle when the accelerator pedal is up is mild.

Speed Control

To prevent the possibility of loss of control
that could cause severe injury or death, use
service brake to control speed. The controller
system is not a substitute for the service
brake.
Vehicle models are equipped with a motor control sys-
tem.
Example: If all of the following events occur...
a) the vehicle is being driven down a slope
b) the vehicle attempts to exceed the specified top
speed with the accelerator pedal depressed or
released
The motor control system will limit the speed of the
vehicle to the specified top speed (the warning beeper
will not sound). When the system is activated by this
sequence of events, the motor generates power which
is returned to the batteries.
If the operator attempts to override the feature by mov-
ing the direction selector or key switch to another posi-
tion, the warning beeper will sound and the vehicle will
slow rapidly until it reaches the speed of approximately
2 mph (3 kph).
Pedal-Up Feature
The pedal-up feature slows the vehicle when the accel-
erator pedal is released while the vehicle is moving
between 8 mph (13 kph) and the vehicle's top speed.
Example: If all of the following events occur...
a) the vehicle is being driven down a slope
b) the accelerator pedal is released for more than
one second
ELECTRONIC SPEED CONTROL
The pedal-up feature will slow the vehicle (the warning
beeper will not sound) until either the vehicle speed is
reduced to 8 mph (13 kph), at which it freely coasts
between 8 and 3 mph (5 kph), or the accelerator pedal
is applied. When pedal-up feature is activated by this
sequence of events, the motor generates power which
is returned to the batteries.
Walk-Away Feature
Walk-Away limits vehicle movement without driver
input, slowing the vehicle to 2 mph (3 kph) and sound-
ing an audible alarm (reverse beeper).
Example: If all of the following events occur...
a) the vehicle has been stopped for more than 1.5
b) the accelerator pedal has been released for more
c) the vehicle begins to roll above 2 mph (3 kph)
The walk-away feature will limit speed to approximately
2 mph (3 kph) and the warning beeper will sound.
When the accelerator pedal is depressed, the walk-
away feature and warning beeper will be overridden
and normal vehicle operation resumes. Any unusual sit-
uation sensed by the controller will cause a similar
response. The system functions in all key switch posi-
tions.
Anti-Roll Back Feature
Anti-Roll Back, like Walk-Away, limits backward motion
of the vehicle down an incline to less than 2 mph (3
kph). See 'Walk-Away Feature' above.
Anti-Stall Feature
Anti-Stall protection reduces motor damage from stall-
ing the vehicle against an object or on a hill.
Example: If all of the following events occur...
a) the system senses that the accelerator pedal is
b) the motor is stalled long enough that any more
The controller will momentarily interrupt power to the
motor. This brief interruption will permit the vehicle to
roll backwards slightly before again stopping in the
stalled condition. This process will repeat itself periodi-
cally until the vehicles is moved from the stalled condi-
tion.
Example: If all of the following events occur...
a) the system senses that the accelerator pedal is
Repair and Service Manual
seconds
than one second
depressed (power applied to motor)
time may cause motor damage
depressed (power applied to motor)
B
B
Page G-1