www.energyabsorption.com
Revision B December 2013
www.highwayguardrail.com
9
All rights in copyright reserved
3.
ATTACH
TMA to the truck:
Method I
(Attaches Backup and Cartridge)
A. Move Backup and Cartridge squarely toward rear of truck. If necessary, activate down
switch to retract latch pins.
B. Adjust the height of the Backup Jacks so that the 1” diameter Backup pivot pins may be
re-attached. Insert the two Pivot Pins and Retainer Pins that connect the Backup to the
Backup Support Frame. Retainer Pins should point down.*
C. Connect light harnesses and verify that all turn/stop/tail lights are working properly.
D. Insert the 1” diameter Pin and Retainer Pin that connects the hydraulic ram to the
Backup* (see Hydraulic Assembly drawing).
E. Retract the two front swivel Jacks completely and rotate them to horizontal position.
F. Raise the rear Jack and secure it in the full up position.
G. Check location of all hydraulic and electrical lines to make sure they will not be damaged
during raising and lowering of Cartridge.
H. Cycle the system to verify that everything is operating properly (see steps 1 and 2 of this
section).
Important:
Do not run down the truck battery.
4.
REMOVE
TMA from the truck:
Method I
(Removes Cartridge and Backup only).
A. Lower the Cartridge to DOWN position.
B. Lower the single rear Jack so it takes the weight of the Cartridge.
C. Swing the two front swivel Jacks into position and extend them until the weight of the
Cartridge and Backup is off the 1” diameter Attachment Pins.
D. Remove the two Attachment Pins and the Pin in the hydraulic ram. Check the hydraulic
ram to make sure it is properly supported (see Hydraulic Assembly drawing).
E. Unplug the light harnesses.
F. Move the Cartridge and Backup squarely away from the truck.
G. Return the Pins and Retainer Pins removed in step D to their original holes in Support
Frame, so they will not be lost.
* Be sure Retainer Pins are attached correctly and cannot fall out: