Historically, the main battery cable for the mechanical siren was attached to the cab power distribution area
Pierce technical service bulletin SB_716 for 2000-2011 Pierce Custom Contender and 2000-2006 Pierce Custom Chassis.
- Bulletin number
- SB_716
- Component
- Electrical system
- Summary
- Historically, the main battery cable for the mechanical siren was attached to the cab power distribution area. The large draw of electrical current from the mechanical siren activation, would starve other electronics in the cab. Sometime causing HVAC systems, radios and other electronics to shut down. Rerouting the main battery cable to either battery box, provides an independent voltage source for the siren, causing less electrical impact to cab area components.
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