How to Transfer Dump Trucks


Transfer dump trucks are used to transport loads of aggregate, such as sand or gravel. Typical dump trucks haul a single load from the quarry to a site. Transfer dump trucks are capable of hauling twice the amount of material over the same distance. The truck consists of a standard dump truck that pulls a trailer with a second container. On site, the operator disconnects the trailer, dumps the main load and returns for the load in the second container. Transfer dump trucks are often referred to as "Slam-Bang" because of the noises made when transfering the container.

  • Set the parking brake on the dump truck. Walk to the trailer hitch area at the back of the truck. Disconnect the air brake coupler for the trailer brakes. Disconnect the running light and brake light connector from the port on the back of the dump truck.

  • Release the trailer hitch lock on the dump truck and lift the end of the trailer hitch out of the hitch. Push the trailer hitch arm to one side so it clears the back of the dump. Swing it back in line under the dump truck and lay it on the ground.

  • Drive the dump truck to the site and off-load the aggregate. Leave the dump-door in the fully raised, open position. Return to the parking area.

  • Back the dump truck up to the front of the transfer trailer, using your side mirrors to align the driver's side of the truck with the left side of the trailer. Set the parking brake and engage the power take-off (PTO).

  • Walk to the back of the transfer trailer. Locate the operating button marked "Forward" on the control box at the back corner of the transfer container. Depress the button and walk alongside the container until it is winched fully into the dump container. Release the operating button. Flip the locking lever on the side of the truck to lock the container in place.

  • Transport the load to the site and off-load the aggregate from the transfer container. Return to the parking lot and back up to the transfer trailer as before. Set the parking brake and engage the PTO.

  • Release the container lock on the side of the dump truck. Press the "Back" button on the control box and walk alongside the transfer container as it is fully winched onto the trailer.

  • Return to the driver's seat. Disengage the PTO and start the engine. Release the parking brake and pull ahead enough to connect the trailer hitch. Set the parking brake.

  • Swing the trailer hitch arm to one side and lift the end onto the hitch at the back of the dump truck. Lock the hitch and reconnect the trailer air brake and light connectors.

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