Prior to using the High Line Dock, and at daily intervals during use, the operator should:
Verify the alignment of the dock by visually sighting along the guide rails. If crooked, straighten as necessary to maintain a straight line. Damaged guide rails should be repaired or replaced.
Verify the horizontal levelness of the dock by sighting along the rollers. The rollers should be on a smooth even plane from end to end. Adjust foot pads as required to maintain rollers in a horizontal plane.
Check to determine that all hair pins which hold the outside walkway clevis pins are in place.
Clear roller surface of all debris.
The dock should be inspected weekly.
Check ease of roll on each roller.
Check operation of pallet stops. Confirm that the stop will lower beneath the top level of the conveyor rollers.
Insure that hand rails are firmly inserted into the vertical hand rail support tubes.
Confirm that there are no broken or damaged component parts or assemblies.
Make sure that the bolts are tight.
Insure that all foot pads are not embedded and can move if dock is impacted by a large heavy vehicle.
Conveyors and walkways should be free of tools, straps, debris and other foreign objects.
Loading and Unloading: All loading and unloading of pallets and large flat bottomed containers is to be accomplished on the dock's ends only. Fork lift trucks and conveyorized vehicles shall be used to perform these operations.
The High Line Dock is a gravity system. Therefore, all movement of materials on the docks conveying surface is accomplished by manual effort.
There are pallet stops located at each end of the dock. These stops will prevent material from rolling off either end of the conveying surface. When you desire to remove material from the dock, the respective stops must be lowered. This is accomplished by manually rotating the stop lever on the side of the dock ends. The stop will automatically return to the "up" position upon release of the handle. The stops are not required to be lowered when loading the dock.
MAINTENANCE / OVERHAUL INSTRUCTIONS:
GENERAL MAINTENANCE INFORMATION:
The High Line Dock is designed to require minimum maintenance. Therefore, maintenance personnel must be more attentive to damage from fork lifts and other vehicles.
REPAIR TOOLS AND EQUIPMENT:
The tools listed below is all that is required to test, assemble, disassemble and repair the High Line Dock.
Wrench, open end, 2 ¼"
Wrench, 2 way, 3/4", 15/16", 6 PT.
Hole alignment tool
IN - USE MAINTENANCE:
Bi-monthly lubrication of moving component parts is necessary for in-use maintenance. It is recommended that a light machine oil (10W) be applied using a hand gripped (squirt type) oiler. It is especially important that each bearing of each carrying roller be lubricated by injecting the oil between the inner and outer race sections.
Scheduled cleaning of the conveyorized High Line Dock is not required. Wiping the carrying rollers with a rag dampened in light machine oil (10W) may be used to minimize corrosion after the roller plating begins to show signs of wear.
Inspection of the High Line Dock will be performed by visual means. Special tools, equipment and gauges are not required. Specific areas that should be reviewed for damage, deterioration and operation is as follows:
Carrying rollers should rotate easily.
Guide rails should be straight and without any deformation.
Stop mechanism should operate easily and within the extension limits.
Certain malfunctions may occur in the operation of the dock. The most common are easily corrected and are listed below:
PROBLEM POSSIBLE CAUSE CORRECTION
Pallet stop does not lower Missing pins between connecting handle & connecting tube. Replace pin
Foreign matter on stop bar or stop. Clean stop mechanism
Pallet stop does not return Broken spring or forign object in mechanism Replace spring
to vertical Remove object
Pallet continually moves into Dock not level Level dock
Pallet difficult to move Defective bearing in roller Replace roller
Repairs to individual components are not recommended, as the design parameters of the structure could be compromised. If repairs are performed, caution must be taken to insure that repaired parts fit as intended. Consult manufacturer if you have any questions.
WELDED STRUCTURES: Any welding performed on any part of the dock should be done with great caution. Welding of galvanized steel can produce sever toxic gasses and expose the steel frame.
ROLLERS: No attempt should be made to repair carrying rollers. They should be replaced when defective. Rollers are removed by extracting the cotter pins which retain the rollers in the conveyor frames.
STOP ASSEMBLY: Component parts of the stop assembly may be replaced when damage occurs. Proper assembly and adjustment is noted on figure 2 of this manual.
GALVANIZED COATING: When small portions of the galvanized coating have deteriorated, the corrosion protection of the steel base assembly may be restored by brushing or spraying on cold galvanized compound that conforms to MIL-P-26915a or equivalent. A commercial product conforming to these specifications is "Galvicon" cold galvanizing compound # 1-4853 manufactured by Kenco Division of Southern Coatings Inc., Sumter, SC. 29150.