Page 1 of 3
Installation and Operation Instructions
EW3420 Combination Lightbar
1. Proper installation combined with operator training in the use, care, and maintenance of emergency warning devices are essential to ensure
the safety of you and those you are seeking to protect.
2. Exercise caution when working with live electrical connections.
3. This product must be properly grounded. Inadequate grounding and/or shorting of electrical connections can cause high current arcing,
which can cause personal injury and/or severe vehicle damage, including fire.
4. Proper placement and installation are vital to the performance of this warning device. Install this product so that output performance of the
system is maximized and the controls are placed within convenient reach of the operator so that s/he can operate the system without losing
eye contact with the roadway.
5. Do not install this product or route any wires in the deployment area of an air bag. Equipment mounted or located in an air bag deployment
area may reduce the effectiveness of the air bag or become a projectile that could cause serious personal injury or death. Refer to the
vehicle owner’s manual for the air bag deployment area. It is the responsibility of the user/operator to determine a suitable mounting location
ensuring the safety of all passengers inside the vehicle particularly avoiding areas of potential head impact.
6. It is the responsibility of the vehicle operator to ensure during use that all features of this product work correctly. In use, the vehicle operator
should ensure the projection of the warning signal is not blocked by vehicle components (i.e., open trunks or compartment doors), people,
vehicles or other obstructions.
7. The use of this or any other warning device does not ensure all drivers can or will observe or react to a warning signal. Never take the right-
of-way for granted. It is your responsibility to be sure you can proceed safely before entering an intersection, driving against traffic, respond
-
ing at a high rate of speed, or walking on or around traffic lanes.
8. This equipment is intended for use by authorized personnel only. The user is responsible for understanding and obeying all laws regarding
warning signal devices. Therefore, the user should check all applicable city, state, and federal laws and regulations. The manufacturer as-
sumes no liability for any loss resulting from the use of this warning device.
Do not install and/or operate this safety product unless you have read and understand the safety information
contained
Failure to install or use this product according to manufacturer’s recommendations may result in property damage, serious injury, and/or death to
those you are seeking to protect!
!
WARNING!
Installation & Mounting:
Carefully examine the unit for damage before installation. If damage is found, contact the
transit company or ECCO. Do not use broken or damaged parts.
Prior to mounting, consideration should be given to cable location. The mounting location
should be chosen such that there is maximum visibility to the oncoming traffic.
Rear Mounting:
1. Insert a hex head bolt through each rear mount bracket and loosely secure the
brackets to the rear of the lightbar with the button head bolts as shown in
FIGURE 1.
2. Position the lightbar in the desired mounting location on the front of the vehicle with
the cable exit to the passenger side. Slide the rear mount brackets into place
ensuring there is at least 18” between them. Mark and drill two 1/4” holes and secure
the rear mount brackets in place on the vehicle using the included nylon insert nuts.
3. With the vehicle on a level surface, place the included cardboard cutout over the
lightbar and angle the lightbar on the mounting brackets until the top surface of the
cardboard is level as shown in FIGURE 2. This ensures the light output angle of the
safety director and worklight LEDs is optimized.
4. Tighten the button head screw in each rear mounting bracket to secure the
lightbar at that angle.
Specifications:
Size: 51.1”L X 2.3”W X 3.1”H
Weight: 12.2 lbs.
Input Voltage: 12-24 VDC Systems
Max. Input Current: 13.5 Amps at 12.8 VDC
6.24 Amps at 25.6 VDC
Max Power Consumption: 172.8 Watts at 12.8 VDC
159.7 Watts at 25.6 VDC
Flash Rate: See Flash Pattern Chart
Temperature Range: -40°F to 158°F
Mounting Surface
Figure 1
Ensure this surface is level
Figure 2
