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CENTER HIGH MOUNT STOP LAMP (CHSML)
Federal Motor Vehicle Safety Standards require all Trucks, Buses, and Multipurpose passenger
vehicles, manufactured on or after September 1, 1993, with a gross vehicle weight rating (GVWR)
of 10,000 lbs. or less and overall width less than 80" must be equipped with a Center Height
Mount Stop Lamp (CHMSL).
If the original equipment CHMSL is obscured, an auxiliary CHMSL must be installed to bring
vehicle back into compliance with Federal Regulations.
Electrical Connection for Auxiliary CHMSL:
(Notes for all truck makes)
1. Use high quality butt connectors and shrink wrap on all electrical splice connections. Wire should be routed
and secured to protect against abrasion, sharp edges, excessive movement. It is highly recommend that
wiring to be placed in convoluted tubing and secured with tie wraps.
2. When drilling holes, any bare metal should be coated with a rust preventative, use appropriate size grommets
and seal hole with appropriate sealant.
3. Allow for normal movement / twisting between cab and chassis / pickup box when routing wires.
4. When spreader is removed from the truck, the OEM CHMSL must be reconnected.
Consult the truck manufacturer for an approved method of connecting an auxiliary CHMSL to the particular truck
which is to carry the Spreader. Methods vary with truck models, optional equipment and years of manufacture.
IMPROPER CONNECTIONS COULD RESULT IN A VARIETY OF PROBLEMS AFFECTING CRITICAL SYSTEMS
SUCH AS BRAKING, ELECTRICAL AND EMISSION ! DON'T GUESS !
PV Spreader CHMSL Installation:
Mount power cable (04616-075-00) with plug at rear of truck frame and route to truck CHMSL power feed. Trim
excess cable length, attach white wire to suitable ground, attach black wire to truck's CHMSL power feed.
Connect cable on spreader to CHMSL power cable.
When the spreader is removed from the truck, the OEM CHMSL must be reconnected.
WARNING
WARNING