A U T O   C H O C K ^®   T R U C K   R E S T R A I N T S

To truly restrain all types of trucks (including trucks with liftgates or no ICC bars), you need the AUTO CHOCK^®, a simple but revolutionary Kelley safety product. It's a permanently installed, automatic system that effectively restrains trucks with a massive, hydraulically operated moving wheel chock.

AUTO CHOCK^®

AUTO CHOCK keeps the truck firmly at the dock during loading or unloading.

AUTO CHOCK is easily operated from a pushbutton control panel.

For extra convenience and service-ability, the AUTO CHOCK hydraulic system is self-contained and remote-mounted.

Summary of Features

• Effectively secures trucks, even those that do not have an ICC bar.
• Only two moving parts.
• Provides continuous restraining force to prevent "trailer creep."
• Improves dock security as it cannot be released from outside the dock.
• Virtually maintenance-free; no lubrication required.
• System includes inside and outside light displays for communication between dock worker and truck driver.

Architectural Specifications (Short Form)

Automatic wheel chocking device designed to chock the wheel of a truck and hold the truck at the loading dock. To be hydraulic operation with NEMA 12 control panel (208V 3ø) (230V 3ø) (460V 3ø) (575V 3ø). Inground mounted housing includes the hydraulically powered AUTO CHOCK® (12" high) (16" high), which stores below grade and raises to an operating position when activated. The system includes operating controls and hydraulic system mounted inside the building along with red/green light communication system.

Installation

AUTO CHOCK® housing is flush mounted in the drive in a 30" x 384" x 16" pit. Provisions for drainage are required. Concrete is poured to secure housing in place. Lights, caution signs, control panel, and hydraulic system should be installed in accordance with provided instructions.

Operation

The truck is backed into position against the dock bumpers and the brakes are set. The dock worker pushes a button on the control panel to activate the AUTO CHOCK®. When activated, the outside light changes from green to red and the inside light changes from red to flashing red. The AUTO CHOCK® rises from its stored position and moves toward the dock until it snugs up against the truck tire. While the AUTO CHOCK® is moving in either direction, a motion alarm will sound. When it contacts the truck tire, the inside light changes from flashing red to green. If the AUTO CHOCK® travels its full length without contacting the truck tire, a fault alarm sounds. When loading/unloading is complete, the dock worker pushes a button on the control panel to release the AUTO CHOCK®. The inside light immediately changes to a flashing red. When the AUTO CHOCK® reaches its stored position, the inside light changes to solid red and the outside light changes to green.

Communications

The communications system consists of printed operating instructions on the control panel, an outside mounted instruction sign for the truck driver, and red/green light displays for inside and outside mounting. Complete operating and installation instructions are included in the installation and owners manual.

Materials and Construction

Heavy-duty chock weldment of 1/4" steel plate, 12" wide with 21" engagement radius. Available in 12" or 16" height.
3/16" structural steel housing with 3/8" steel chock track and guide rails.
120V heat tracing cables; temperature activated to prevent ice in housing.
Entire assembly is surface finished in yellow, acting as a guide stripe to help drivers align their trucks with the dock.

Electrical Specifications

NEMA 12 control panel (16" x 16" x 6").
Supplied in 208V, 230V, 460V, or 575V; all 3 phase, 60 Hz.
2.5 KVA.
Programmable Logic Controller (PLC).
Electrical supply connection by others.

Hydraulic Specifications

3 HP, 5 GPM motor/pump.
Double acting 3" cylinder with 168" stroke and 2" cylinder rod.
10 gallon reservoir.
All hoses and fittings provided.

Accessories

Traffic style "Don't Move" lights.
Integrated controls

Consistent with our policy of continuing product improvement, we reserve the right to change these specifications without notice or obligation.

AUTO CHOCK^® TRUCKLEVELER

Summary of Features

• Truckleveler has 24" of travel giving you the ability to handle a wider variety of truck bed heights.
• Truckleveler reduces the ramp angle allowing safer operation and reduced maintenance on powered equipment.
• Improves dock security as it cannot be released from outside the dock.
• Includes Kelley Company, Inc. AUTO CHOCK system which effectively secures trucks, even those with missing or damaged ICC bars.
• AUTO CHOCK provides continuous restraining force to prevent "trailer creep".
• System includes inside and outside light displays for positive communication between dock worker and truck driver.

Architectural Specifications (Short Form)

The Kelley Atlantic Truckleveler model ATL-AC 1018-SM (surface mounted) is a push button operated electrohydraulic system for raising, lowering, and automatically chocking trailers at the loading dock for safer and easier transfer of materials. To include automatic wheel chocking device designed to chock the wheel of a truck and hold the truck at the loading dock. To be hydraulic operation with NEMA 12 control panel (208V 3 phase) 230V 3 phase) (460V 3 phase) (575V 3 phase). Truckleveler is to be 60,000 lb. capacity. Deck size to measure 10' wide x 18' long. Approach ramp to measure 10' wide x 4' long. Lowered height to be 8 1/2". Vertical travel is 2'. Surface mounted housing includes the hydraulically powered AUTO CHOCK^® (12" high) which stores below the truckleveler deck and raises to an operating position when activated. The system includes operating controls and hydraulic system mounted inside the building along with red/green light communication system.

Operation

The truck is backed into position against the dock bumpers and the brakes are set. The dock worker turns a switch on the control panel to activate the AUTO CHOCK. When activated, the outside light changes from green to red. The AUTO CHOCK rises from its stored position and moves toward the dock until it snugs up against the truck tire. When it contacts the truck tire, the inside light changes from red to green. Once the AUTO CHOCK secures the tire, the dock worker presses the raise button to lift the trailer to the appropriate height. The dock is controlled by constant pressure push buttons for accurate positioning. When loading/unloading is complete, the dock worker presses the lower button to return the trailer to the stored position, and turns a switch on the control panel to release the AUTO CHOCK. The inside light immediately changes from green to red. When the AUTO CHOCK reaches its stored position, the outside light changes from red to green indicating the truck may depart.