General Truck or Trailer Requirements
Princeton PiggyBack®
Axels
Princeton has almost 30 years of truck-mounted forklift experience. The basics are simple, but there are many details to cover to insure maximum productivity and safety. In general, almost any truck or trailer can be modified to carry a PiggyBack®. Princeton features the EZ Hitch® mounting system, which is a proven and tested design. This is also the only mounting system in the industry that features 3 point safety: hook, pin & slack safety chain. The unit is ready to use in less than 60 seconds.
Height
The PiggyBack forklift needs to be installed as high as possible, to avoid contact with the ground when driving up steep inclines, ramps. Etc. The minimum distance from the ground to the bottom crossmembers of the trailer bed is 48″. The minimum recommended distance between the front tires and the ground is 11″. The minimum clearance between the rear tire and the ground is 18″.
Princeton has various solutions for low boy trailers. Click here for more information.
Bed – Structural
Bed side and rear cross members: minimum C6 x 10.5 pounds per foot. Bed cross members: minimum S4 x 7.7 pounds per foot, 10-12″ center to center.
ICC Bumper
This effects trailers (not trucks) manufactured after 1-26-98. When the Piggy Back forklift is dismounted, a bumper needs to be in place. Princeton offers a certified bumper for this solution, that can be folded out when the unit is not mounted on the back of the trailer.
Electrical
On most trucks and trailers, the tail lights will have to be relocated. Tail, clearance and identification lights should be mounted as high as possible. This is necessary to give the Piggy Back forklift maximum clearance when mounted, and meet the minimum specifications. The tail lights should be mounted no wider than 54", outside edge to outside edge.
PiggyBack lights
Via a pig tail the rear lights of the PiggyBack Forklift are activated.
License Plate
The license plate bracket and light must be mounted such that they are clearly visible when the PiggyBack isn't mounted.