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POLARIS COMMERCIAL
CENTRE D'AIDE
8/25/2021

Taylor-Dunn R-380 with Curtis DC System Vehicle Controls

The information in this article applies to standard R0-380 Taylor-Dunn vehicles – model number R0-380-36. Note that vehicle customization may cause variation from the information in this article.

The R0-380 personnel carrier is shown below. 

RE-380

Vehicle Controls

vehicle controls

1. Accessory Switches: These switches control various accessories that may be equipped on your vehicle. Push the top of the switch to turn the accessory on. Push the bottom of the switch to turn it off.

2. Battery Status Indicator: There are two available BSI’s depending on how your vehicle was ordered. A detailed description of operation can be found later in this article. 

3. Hour Meter: The hour meter is optional and displays total time the vehicle has been in operation. Time is accumulated only while the vehicle is moving with the throttle pedal pressed.

4. Direction Control Switch: This switch determines the direction of travel.

The switch has three positions:

  • FORWARD: Push the top of the switch all the way in to travel forward.
  • REVERSE: Push the bottom of the switch all the way in to travel in reverse.
  • OFF: There is a center position between forward and reverse, this is the “direction” OFF position. The direction off position does NOT turn the vehicle control system off. Use the Start Switch to turn the vehicle control system off. Refer to Start Switch entry in this section for details on turning the vehicle control system off. The off position IS NOT neutral and does NOT disconnect the motor from the drive train.

5. Start Switch
The Start Switch turns the vehicle electrical control system on. This switch may or may not require a key to operate. Rotate the switch clockwise to turn the vehicle system ON and counterclockwise to turn the vehicle system OFF. The vehicle will not run when in the off position. The switch should be in the off position whenever the operator leaves the driver’s seat. This switch is designed to secure and disable the vehicle. The key can only be removed when the switch is in the off position. 

Horn Switch
Press the horn switch with your left foot to sound the horn, release it to turn it off.

horn switch

Operator Controls

pedals

1. Throttle Pedal
The throttle pedal is located to the right of the brake pedal. It controls the speed of the vehicle and operates similar to the throttle pedal in an automobile. Press the pedal to increase speed and release the pedal to decrease speed.

2. Foot Brake Pedal
The foot brake pedal is located to the left of the throttle pedal. This pedal is designed for operation with the driver's right foot and works similar to the brake in an automobile. Applying pressure to the brake pedal slows the vehicle according to the amount of pressure applied. Relieving pressure from the pedal releases the braking action.

Parking Brake
The parking brake is actuated with a hand lever, located to the right of the driver. To set the parking brake, push down on the brake pedal and pull the lever up and back until it locks. To release the park brake, press the foot brake pedal and push the brake lever forward and all the way down. Note: The parking brake can be adjusted by rotating the knob on the end of the handle.

park brake

Steering
The steering wheel and steering system are similar to an automobile. To turn right, turn the steering wheel clockwise. To turn left, turn the steering wheel counterclockwise.

steering

Turn Signal Switch
The turn signal switch is optional. The turn signal switch lever is located on the left side of the steering column. Push the lever forward to activate the right turn signal and pull the lever back to activate the left turn signal. The switch is not self-canceling. You must return the switch to the center, off position after the turn is completed.

turn signal

Hazard Light Switch
The hazard light switch is located on the Turn Signal Switch. The switch is a small tab or knob under the turn signal lever. To activate the hazard lights, pull the tab out. To turn the hazard lights off, push the turn signal lever forward or back.

Battery Status Indicator 
The Battery Status Indicator has two forms: a bar graph or analog gauge. Both indicate the charge state of the battery.  

Battery Status Indicator: Bar Graph 

C-432 battery status indicator

The battery status indicator is located to the left of the hour meter. The battery status indicator has an LED bar graph that indicates the relative state of charge of the battery.

The top LED will light only when connected to a fully-charged battery or after completing a charging cycle. Successive lower LEDs will light as the battery charge diminishes.

When the second-to-bottom LED flashes, the battery energy status is in energy reserve and should be placed on charge as soon as possible.

When the two bottom LEDs are alternately flashing, the batteries are empty and the truck should be taken out of service and charged to avoid damaging the batteries.  

The BSI will reset to fully charged only after a complete charge cycle is completed. A complete charge cycle is defined as battery voltage exceeding 2.35 volts per cell for a minimum of six minutes.  

Battery Status Indicator: Analog
This gauge went into production in July 2015. This gauge is a limited-range voltmeter that indicates the current voltage of the batteries. The red zone to the left is voltage range V1, the green zone is V2, the white is V3 and the red zone to the right is V4. Refer to table below for range voltages. For a more accurate status, the vehicle should be idle and not used or charged for a minimum of one hour.  

Note: While charging and immediately after a charge cycle is completed, the battery voltage may greatly exceed the fully charged voltage per the gauge. 

State of Charge

Refer to the charts below for more information.  

Battery Status at 80 degrees Fahrenheit (27 Celsius)
  Discharged Fully Charged
24V System 21.18 volts 25.44 volts
36V System 32.22 volts 38.16 volts

Note: Battery voltage will vary with the temperature of the battery. Add 0.084 volts per battery for every 10° below 80°F and subtract 0.084 volts per battery for every 0° above 80°F.

System Voltage
  24v System 36v System
V1 Range 16-20 volts 30-32 volts
V2 Range 12-24 volts 32-36 volts
V3 Range 24-30 volts 36-40 volts
V4 Range 30-32 volts 40-42 volts

Note: Accuracy of the gauge at full scale is +/- 4% at 77 degrees Fahrenheit (25 degrees Celsius).

Interlocks
Operator Presence: Located under the driver’s seat, this switch disables the power to the vehicle when the driver leaves the seat. The driver must be seated for the vehicle to operate. Whenever the driver leaves the vehicle, the driver should turn the key-switch off and place the forward-off-reverse switch in the center off position.

Built in Charger: If equipped with a built in charger, the charger interlock is designed to disable the vehicle from being driven while the AC charging cord is plugged into a functioning power source. This interlock is located inside the charger cabinet.

Battery Door: Two switches located on the inner left and right side panels disables power to the vehicle whenever the battery doors are removed or not properly installed.

For more information, refer to your Operator and Service Manual

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