5-376-000086
REV. 4 - 07/10
Section IV: Glossary
Page 89
Forks - A device attached to the lift bar for lifting a vehicle by the tires, axle, frame,
or structural member. May be classified as chain, axle, or frame forks.
FW (Frame Width) - The overall width of the chassis frame measured outside to
outside behind the cab.
G
GAWR (Gross Axle Weight Rating) - The value specified by the manufacturer as
the load-carrying capacity of a single-axle system as measured at the
tire-roadway interface.
GCWR (Gross Combination Weight Rating) - Represents the entire weight of a
vehicle on the ground with a trailer or trailers including vehicle, equipment,
driver, fuel, and payload (everything that moves with the vehicle.) Gross
combination weights published represent maximum allowed.
Grab Hook - For use with chains and some tow-sling hookups.
Grid - A device that attaches to the lift bar for engaging the tires of a towed vehicle.
GVWR (Gross Vehicle Weight Rating) - The maximum total vehicle rated capacity,
measured at the tire ground interface, as rated by the chassis manufacturer.
GVW (Gross Vehicle Weight) - Value specified by the manufacturer as the
maximum loaded weight of a single vehicle including all equipment, fuel,
body, payload, driver, etc.
H
Headboard - Structure on which an emergency light bar is mounted.
Hook-up Chains - Length of chain used to connect a recovery vehicle to a casualty
vehicle.
Horizontal Center of Gravity (HCG) - The point at which half of the gross weight
is forward and half is aft.
Hydraulic Control Valve - A mechanical device to divert or control the flow of fluid
in a hydraulic system.
Hydraulic Hose - Flexible oil lines used to transmit fluid.
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