FAQ

Ten Common Mounting Requirements

• 1. Do not place a tag axle behind the main axles.

  The use of tag axle(s) disallowed for truck-mounting. Tag axles increase load capacity when lowered. When raised they increase stresses to chassis while TMFL is stowed.

• 2. Do not exceed state length or width laws.

  The PiggyBack TMFL is not part of the load, but is considered in the overall length of the transport vehicle.

• 3. Do not exceed 48" from the back tire to the back of the bed.

  Exceeding this dimension increased the chance of a rear-tire-to-ground impact, which can damaged the TMFL during transport.

• 4. Do not allow the Piggy Back to hang lower than recommended.

  The bottom surface of the body/bed crossmembers must be at least 48" from ground.

• 5. You must check the frame structure of the transport vehicle.

  The transport vehicle chassis/frame must meet minimum RBM (Resistance to Bending Moment) requirements. Consult Princeton PiggyBack for RBM requirements, per TMFL model.

• 6. Use counterweight when required.

  Failure to do so will result in improper steering and braking control when transport vehicle is empty and TMFL is stowed.

• 7. Single Axle trucks are generally limited to units weighing less than 4200 Ibs.

  Single-axle trucks are inheritely limited for TMFL transport. Overloading rear axle and/or reduced load capacities are major concern. Consult Princeton PiggyBack for inquiries

• 8. "AII aluminum" trailers should not be specified for unit mounting.

  Reinforced composite trailers are recommended. "AII aluminum" trailers require excessive counterweight.

• 9. Special mast attachments may affect the mounting of the unit.

  Items such as fork positioners, extra tall masts, etc. may need special dimensions when installing the mount.

• 10. Dump body trucks will require special mounting considerations.

  Bed reinforcements and tie-downs will be required. Mount kit will need to be built out to create clearance for rear door hardware.