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8/25/2021

Taylor-Dunn Tiger TC-50E Vehicle Controls

The information in this article applies to standard Tiger TC-50E vehicles – model number C0-T50-80. Note that vehicle customization may cause variation from the information in this article.

The Tiger TC-50E tow tractor is shown below.

TC50E

VEHICLE CONTROLS 

vehicle controls

1. Horn Switch: Press the horn switch to sound the horn. Release the switch to turn it off. 

2. 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. 

3. Directional Signal Indicator Light: These lights are located on opposite sides of the display and flash when the directional signals are activated. 

4. Emergency Stop Switch: This switch will disconnect main power to the controller and should only be used in an emergency. When operated, power to the drive motor will be interrupted, power steering and power brakes will be lost, and the lights will turn off. An additional emergency power off switch is located on the rear inching panel. 

5. Dash Display: The type of dash display will vary depending on the vehicle control system. The ClearView Display on the Sevcon system is shown below.

dash display

The ClearView display is a multi-function display with speedometer, trip odometer, battery status indicator, vehicle system status monitor and control system diagnostics.  

The three buttons on the right side of the display are used to access all available screens and functions.  

dash buttons

  • Pressing any one of the three buttons opens the button navigation window in the display, which indicates the function of the three buttons.  
  • Pressing the middle button (the enter arrow that points left) will toggle through all the screens available to the operator.
  • The upper and lower buttons will perform the action that is displayed in the navigation window. 

Messages on the ClearView Dash Display 
The dash display may show the following messages while operating the vehicle:  

System Fault: If a system fault occurs, the fault message will be displayed along the bottom of the screen. Fault information details are provided in your Vehicle Operator and Service Manual.  

Battery Watering Reminder: A battery watering reminder icon will pop up in the lower-right corner of the display after every five charging cycles. This is a reminder to check the battery water level. To reset the icon, press and hold the upper display navigation button for a few seconds. 

battery watering reminder

ClearView Dash Display Screens 
The Main Screen displays the following:  

  • Speedometer  
  • Total Hours  
  • Trip Odometer  
  • Direction Selected (N=OFF, D=Forward, R=Reverse)
  • Battery Status Indicator (BSI)  
  • Battery Water Reminder  

ClearView Dash Display Screens  
Should a system fault occur, all screens will display a pop-up message at the bottom of the screen indicating the fault. Shown below is an example of a sequence fault.  

display screen
A complete fault list can be found in the Vehicle Controls section of the Vehicle Operator and Service Manual or in Taylor-Dunn Fault Codes

If a fault is currently displayed, additional information on the fault can be viewed by pressing any one of the navigation buttons on the right of the display and then the FAULT HELP button (top button). 

fault help button

The trip odometer and hour meter are shown at the bottom of the main screen. To reset the trip odometer, press and hold the lower display navigation button for about one second. 

trip odometer

The Vehicle Inputs Monitor screen displays the current condition of the vehicle’s various control switches. 

A circle that is filled in red indicates a closed switch. 

Vehicle inputs monitor

The Time to Distance screen displays how long it takes to drive a pre-defined distance. Also included on this screen are the total hours of operation. 

time to distance

The Fault Log screen displays the fault log history. The “ID” column is the fault ID code. The “No” column is the number of specific faults that have occurred. 

fault log screen

Faults 
Any current fault will be displayed along the lower edge of the screen as shown in the illustration below. In addition, there is a fault log screen that will show the recent fault history.  

The fault code list is located in the Vehicle Controls section of the Vehicle Operator and Service Manual

display screen

The Vehicle Status screen displays the current operating condition of the vehicle. 

Vehicle status screen

Battery Status Indicator 
The battery status indicator (BSI) is shown on the right side of the dash display main screen. This gauge functions like a fuel gauge in an automobile. At the top of the gauge, it shows the percentage remaining in the battery.  

The BSI is not an absolute gauge of power remaining in the battery. The amount of available power is relative to the amount of power required. As the power requirements are increased, such as driving up a hill, the relative available power in the battery is decreased. The motor speed control system estimates the battery power remaining by monitoring the current driving conditions.  

There are 10 bars in the bar graph display, each bar representing 10 percent of battery power.  

At 10 percent estimated battery power remaining (one bar showing), a warning message will pop up at the bottom of the display to inform the driver of the low battery condition. It is important to drive to a charging station as soon as possible. If the estimated battery power remaining drops below empty, the control system will reduce the power to the motor in order to conserve energy. To avoid damage to the battery, the vehicle should be immediately taken to a charging station.  

Note: The BSI will only reset to full after a full charging cycle has completed. In addition, the BSI will not reset to full unless the battery is discharged below 75 percent before starting the charge cycle.  

While coasting, the batteries are charged through a process called regenerative braking (regen). It is possible that the BSI could reset to full while in the regen braking mode. Details regarding the regen braking mode can be found in the Vehicle Operation section of the Vehicle Operator and Service Manual.

6. Strobe Light Switch: The strobe light switch is optional. If equipped with a strobe light, push the top of the switch to turn the light ON. Push the bottom of the switch to turn the light OFF. 

7. High Beam Indicator Light: This light illuminates when the headlight high beams are activated. 

8. Headlights: This is a three-position rocker switch.  

All lights are OFF when the switch is in the lowest position (push on bottom of actuator).  

Only the parking lights are ON when the switch is in the second position (push top of actuator one click from OFF).  

All lights are ON when the switch is in the third position (push top of actuator two clicks from OFF). 

Caution: Unless in an emergency, do not activate the emergency stop switch while the vehicle is in motion. This vehicle is equipped with an automatic electric parking brake. Activating the emergency stop switch will immediately apply the brake and abruptly stop the vehicle. This may result in injury to the occupants and/or upsetting the load being carried or towed. 

9. Windshield Wiper: The windshield wiper is optional. The wiper has a two-speed wiper motor. The wiper is OFF when the switch is in the lowest position (push on bottom of actuator).  

  • Normal speed is when the switch is in the second position (push top of actuator one click from OFF).  
  • Fast speed is when the switch is in the third position (push top of actuator two clicks from OFF). 

10. High Beams (Headlight): A push-button latching switch is located on the end of the directional switch lever. Depress and release to turn the high beams ON or OFF. 

11. 4-Way Flashers: The actuator lever for the 4-way flasher is located behind the directional switch lever. Pull the actuator out to turn the 4-way flashers ON.  

To turn the 4-way flashers OFF, move the directional switch lever in either direction. 

12. Directional Signal Switch: Use the directional switch lever to indicate a left or right turn. PUSH the lever away (clockwise) to signal a right turn. PULL the lever closer (counterclockwise) to signal a left turn.  

The directional switch does not automatically reset. Move the lever to the center OFF position after completing a turn. 

OPERATOR CONTROLS 

Shift Lever: The shift lever has 4-positions.  

shift lever

  • High (H): Move the shift lever to the right and up to the second notch in the index plate. High will allow the vehicle to obtain its maximum speed but will also reduce the running time due to increased demand from the battery.  
  • Low (L): Move the shift lever to the right and up to the first notch in the index plate. Low should be used while pulling loads greater than half of the vehicle capacity or pulling any load up or down a grade.  
  • Off: The lever is shown in the OFF position in the illustration.  
  • Reverse: From the OFF position, move the shift lever to the right and then back. 

Warning: Do not dismount the operator’s seat while the vehicle is in motion. Getting off the seat will activate the Operator Presence circuit, rapidly slowing the vehicle and applying the park brake. The abrupt slowing of the vehicle may result in severe bodily injury. 

The operator presence switch is only one part of the vehicle safety system. It should not be relied upon as the only safety feature used to disable or disengage this vehicle. Doing so could result in unexpected movement of the vehicle causing severe bodily injury and/ or property damage. 

Interlocks 
Operator Presence: A switch located under the driver’s seat 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 shift lever in the center OFF position.  

Foot Brake: This vehicle is equipped with a foot brake interlock. The vehicle control system will not run if the foot brake is applied.  

Parking Brake: This vehicle is equipped with a parking brake interlock. The vehicle control system will not run if the parking brake is applied.  

Rear Charger Connector: A switch located on the charger connector disables power to the vehicle whenever a charger is connected. 

Parking Brake 

brake lever

The hand parking brake lever is located to the right of the driver seat. To apply the parking brake, pull back and up until the lever is vertical and locks in place. 

Pedals and Steering 

pedals and steering

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

2. Brake Pedal: The foot brake pedal is located to the left of the throttle pedal and is for operation with the right foot only. It works like 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. 

3. Steering: The steering wheel and steering system are like an automobile. To turn right, turn the steering wheel clockwise. To turn left, turn the steering wheel counterclockwise. 

Tilt Steering 
Turn the tilt column locking knob counterclockwise, move the steering column up or down as needed, and tighten the knob to lock the column in place. Be sure the knob it tight enough so that the column cannot move during operation of the vehicle. 

tilt steering

For more information, refer to your Vehicle Operator and Service Manual
To service your vehicle, see an authorized Taylor-Dunn Dealer. To find a dealer near you, use the Dealer Locator.  

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