www.energyabsorption.com
Revision B June 2013
www.highwayguardrail.com
24
All rights in copyright reserved
18) Check the Hydraulic System
The Hydraulic Assembly is pre-assembled and tested for operation and leaks before shipping.
The pump is wired as shown on the Hydraulic Assembly drawing. Before operating the system,
remove the vent plug from the fill port of the hydraulic pumps reservoir and check to see if the
reservoir is full (the fluid should be just visible). Add only Dexron
®
III ATF fluid if it is not. Do not
overfill. Replace the vent plug in the filler port. (Be careful not to cross thread it.)
Read Operation Instructions (
See Page 27;
Folding and Unfolding the System). Making sure all
electrical and hydraulic lines will not be damaged, use the switch at the rear of the truck to fold
and unfold the system twice. This purges air from the system and verifies operation.
Also, cycle the system using the cab switches to verify proper operation.
Figure 21
Note:
Continuous operation may run down truck battery or damage pump.
Important:
Ensure both positive and ground cables are connected directly
from pump to battery.
DO NOT
rely on chassis or frame for proper grounding.
