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Operating your Ledwell Attenuator Truck correctly is important to extend the life of your equipment. Watch this operational series video or follow the steps below.

To get started, walk around the entire truck to inspect the following:

Overhead and ground obstructions, Lights, Wheels & Tires, and Attenuator.

If needed, toggle the switch to turn on strobes and work lights.

Push the button on the in-cab control tower to raise the lightboard.

Set the light configuration as needed.

Deploy the Attenuator by pushing button on the in-cab control tower.

 To use Cone Seat, remove the safety latch and slide open the gate. Enter workspace. Close the gate and install safety latch.

 To remove Stake Side, release the latch and the lift panel up.

 When finished with job, reverse the process to stow all equipment.

An attenuator is a crash cushion mounted to a truck’s rear. This type of truck is called an Attenuator Truck or sometimes a Crash Truck. These trucks can be seen in roadway work zones to protect workers from moving traffic. The attenuator absorbs impact when hit by a vehicle.

A ballast box is typically an empty metal box at the front of the bed. The box is used to provide the counterweight needed for proper usage of the attenuator based on state regulations. It is usually filled with heavy materials such as gravel or sand.

TMA stands for Truck Mounted Attenuator.

Learn to operate your Ledwell Water Truck correctly to extend the life of your equipment by following the steps below or watching this operation video.

Walk around the entire truck to perform a pre-trip inspection. Be sure to check the following: Wheels & tires, PTO for leaks, Driveline for connection, Pump bolts are tightened, and has slow drip at packing.

Primer Tank Valve to be closed if filling via fire hydrant or top fill

To fill tank: Fire Hydrant

Connect the hose with cam lock to fill the pipe at the rear of the tank.

Connect the other end of the hose to a fire hydrant.

Turn hydrant on to begin filling.

While filling the tank, beware of the Road Limit gauge at the tank’s front driver side.

To fill tank: Top Fill

Open manway lid at the top of the tank, if applicable.

Center opening of the tank with the opening of water source

To fill tank: Suction Hose

Close 4″ butterfly valve on the suction side of the pump.

Remove cam lock from suction pipe and attach fill hose.

Open the primer tank valve and allow water to fill the system.

Pull the bleeder valve to allow air to escape.

Engage PTO Set RPM to 1,800 – 2,000 to begin filling the tank.

Once the tank is full, Disengage PTO.

Shut primer tank valve.

Remove the fill hose and replace the camlock cap.

Open 4″ butterfly on suction.

To begin spraying:

Attach side spray, if desired Engage PTO and put the truck in gear.

Pull valves in the cab to activate nozzles – Front/Rear/Side.

Drive as needed to perform spray – being mindful of water movement in the tank

CAUTION: At high engine RPM, do not close all spray valves at once.

Disengage PTO

To spray via Hose Reel:

Engage PTO.

Manually open the gate valve at the rear passenger side of the tank.

Adjust nozzle as needed.

Disengage PTO

The pump on a Ledwell water tanker is set up to pump around 400GPM at 2000RPM engine speed with about 55PSI at the spray heads.

At this engine speed, you should receive a spray pattern of 55′ wide by 30′ deep and a side spray 65′ to 75’out.

Most PTOs are in the 111% to 126% range. The pump will peak at 2400-2500RPM (pump speed).

Our tanks are lined with Lifelast coating to protect the tank from corrosion. This coating is tolerant of most chemicals with the exception of strong acids, aromatic hydrocarbons, ketones and chlorinated solvents. Always check the content before loading your tank with water mixed products.

The pump is designed to leak in order to wet the packing and keep it cool. It should drip 40 to 60 drops a minute. It’s adjustable with the packing gland ring and the two threaded studs holding it. When all the adjustment is taken up, then it is time to replace the packing.

Before beginning the procedure, make sure there are no other transmitters in the vicinity being operated, as this can cause issues with the dedication process.

Note that these receivers have the capability of storing two (2) unique ID codes, allowing the use of two (2) different transmitters.

1. Power up the receiver.

2. Locate the green ‘SETUP’ button on the bottom of the receiver as shown in the image to the right.

3. Press the ‘SETUP’ button 5 times quickly. The blue ‘POWER/ACTIVITY’ light will blink 5 times to confirm the correct entry.

4. Press the ‘SETUP’ button once. The ‘POWER/ACTIVITY’ light will blink once.

5. Press any button on the transmitter that will be used with this receiver for at least two (2) seconds. The ‘POWER/ ACTIVITY’ light on the receiver will blink approximately 6 times, indicating that the code has been learned. (Note that on handhelds with system ON/OFF buttons, the ON button must be used in this step).

6. If a second handheld requires dedication, go to step 7. If not, the dedication process is complete.

7. Press the ‘SETUP’ button 5 times quickly. The blue ‘POWER/ACTIVITY’ light will blink 5 times to confirm the correct entry.

8. Press the ‘SETUP’ button twice. The ‘POWER/ ACTIVITY’ light will blink twice.

9. Press any button on the transmitter that will be used with this receiver for at least two (2) seconds. The ‘POWER/ ACTIVITY’ light on the receiver will blink approximately 6 times, indicating that the code has been learned. The dedication process is now complete

There are two possibilities. Either your battery needs charged or you need a new battery. Try charging it. If there is no change, contact Ledwell.

Your air solenoids may be malfunctioning. Each solenoid has a button at its center. Use those to manually operate the air solenoids and ensure their responsiveness.
DO NOT ENGAGE THE PTO WHILE PERFORMING THIS TEST. AIR ONLY.
If there is still no operation, check the twist lock connector for corrosion on the pins.

Yes, we offer replacements for handheld wireless remotes. Contact our Parts Department to order.

Once you receive your new remote, you will need to pair it with the transmitter mounted on your equipment.