TrafFix Scorpion II METRO TL-2 PLUS, Assembly Manual And Mounting Instruction Manual

Page: 30 / 54

P/N 13089 Rev A1 Dated 5/13/2020 26
Standard Flatbed Truck Mounting Installation
Truck Installation Model C
Before attempting to install the TMA to a host vehicle truck, ensure that the truck meets the following criteria: Truck
weight specifications vary from state to state; however, it is recommended that the truck weighs a minimum of 7,300
lbs.
Adding ballast can affect the truck bed height, so it is preferred to ballast the truck before attaching the TMA. Check
the truck frame to ensure that it is structurally sound and rust - free. Also, check the amount of frame extension in back
of the spring brackets – a minimum of 10” is needed. Check that the bed of the truck does not extend beyond the back
of the frame more than 4” . This is necessary for vertical clearance of the TMA. Check the frame for a cross tie plate
connecting one side to the other if the frame extends to the rear more than expected. It is preferred to keep the frame
from extending more than 24” from the back of the spring support bracket. Also check the height of the truck side
gates. These should be less than 8’ 6” from the ground to allow clearance if the double 90° tilt is used.
1. The truck frame consists of two C - channels spaced ap-
proximately 34” apart. Grind the inside and outside of the
ends of the frame, as shown in this figure (right), in prepa-
ration for tack welding process. The frame should be
square from side to side. Use a carpenter’s square tool or
any other square device to verify that the frame is indeed
level and straight. Also measure the distance from the
frame ends to the back of the spring brackets.
2. Mount the Backing Plate (P/N: 10353) onto the
backup of the TMA as shown in this figure (right).
Mounting the backing plate onto the TMA will
simplify the alignment process when mounting the
backing plate onto the truck frame of the host
vehicle.
10”