August 10, 2009

If you are experiencing moisture issues, and have purchased a Raydian Lightbar during the January 1 2008 through May 2009 timeframe, we strongly encourage you to follow the appropriate corrective actions. Contact Federal Signal Service at 1-800-433-9132 for the replacement parts necessary to perform these actions before working on the lightbar. Please have your order number and date of purchase at the time of call. You can find this information on the white label attached to any ROC PCB assembly inside of the lightbar. This will determine what parts you need and what actions are necessary.

A complete list of orders affected by these moisture issues is at the beginning of the service bulletin. If your order number does not appear on this list and was not purchased during the 2008 through May 2009 you there is no corrective action needed. Download the full report for a list of orders affected by this service announcement. Your order number is located on the white label found on top of any ROC board. If your order number matches, contact Federal Signal Service immediately at 800-433-9132 to repair your lightbar or obtain the necessary replacement parts.

» Download full report.

July 9, 2009

In rare occasions on some main siren/speaker combinations, the output of the main siren wail tone sweep drops below the sense level of the Rumbler input circuit. This results in the Rumbler output breaking up on the low end of the wail tone sweep. When this occurs, the gain of this circuit can be adjusted. If an adjustment is required, perform the follow steps.

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June 19, 2009

Warning:
Mounting Corner LED lights near headlamp or other bulbs may cause permanent damage. Mount Corner LED lights as far away as possible. Failure to do so may void warranty.

Service:
If you have questions, contact the Federal Signal Service department at 1-800-433-9132 or at empserviceinfo@fedsig.com.

» Download full report.

April 21, 2008

Issue:
Premature failure of the EQ2B siren due to misalignment of amplifier bias Some EQ2B units had the amplifier bias adjustment improperly adjusted during manufacturing at Federal Signal. This misalignment can cause premature amplifier failure due to overheating of the power amplifier output transistors.

Units Affected:
All units manufactured between the dates of October 1st of 2006 (date code 06275) and March 1st of 2008 (date code 08061) that have not already been serviced by the Federal Signal Service Department may be affected.

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July 27, 2007

HK-MAG5 is only to be used on the Dodge Magnum. HK-CHGR is only to be used on the Dodge Charger. Specifically, the 18-8 stainless steel bolts (P/N# 7000469-xx) supplied with locktite on the threads must be used with keeper plates in compliance with the mounting instructions supplied with the bar and the corresponding hook kit. Any substitution and/or variation may lead to a hazardous condition with the vehicle's lightbar mounting. If you are using the wrong hook kit, replace immediately.

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November 15, 2006

Federal Signal Arjent S2 and Legend lightbars include directional warning patterns that are built-in to the lightbar software. When a SignalMaster directional pattern is selected, the directional warning overrides any other activity in that portion of the lightbar. We have discovered that under certain temperature extremes the SignalMaster directional lighting in these lightbars will either 1) not energize (light-up) or 2) will energize but perform erratically.

Federal Signal has resolved this issue and replacement controller boards are available. If you must use your lightbar prior to having it repaired, it is recommended that you use other warning patterns in conjunction with the SignalMaster directional warning (Mode 1, 2, or 3) to maintain officer safety.

Download the full report for a list of orders affected by this service announcement. Your order number is located on the white label found on top of any ROC board. If your order number matches, contact Federal Signal Service immediately at 800-433-9132 to repair your lightbar or obtain a replacement controller board.

» Download full report.

July 23, 2004

Federal Signal Corporation's model 650204 LED/halogen flashers were designed with short circuit protection to prevent current overload in a vehicle's electrical system. We have discovered that in certain situations the flasher's over-current protection could fail. This is a fire hazard for a vehicle's electrical system if the flasher fails to shutdown when a short occurs and the vehicle's electrical system receives too much current.

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September 1, 2003

Federal Signal Ricochet Strobe Power Supplies have been manufactured with an internal gasket to provide mechanical support and stability for the board-mounted flash capacitors. We have discovered that, under certain conditions, compounds contained in the gasket material may provide a conductive path for electrical arcing, damaging the power supply.

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October 5, 2001

Federal Signal Corporation's FireRay strobe lights are typically produced with a housing molded from a non-conductive, polycarbonate material. We have discovered that our vendor for this housing has supplied some housings to us made from an electrically conductive material. The use of this material can pose a safety hazard in that a person coming into contact with a vehicle operating the FireRay strobe lights could receive a severe electrical shock. This condition can potentially involve FireRay strobe lights shipped from Federal Signal from January 2001 through October 2001.

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