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Section IV: Glossary
Page 98
Wheel Arm
- A device that attaches to the lift bar for engaging the tires of a towed
vehicle.
Wheelbase
- Horizontal dimension from centerline of front axle to the effective
centerline of the rear axle(s).
Wheel Chock -
A device used to prevent chassis movement.
Wheel Fork
- See Wheel Arm.
Wheel-Lift
- A device used for towing vehicles by lifting one end of the towed
vehicle by the wheels.
Wheel Securing Device
- A strap or mechanical device, when attached to the lift-
bar, which limits the potential for separation of the towed vehicle from the
underlift, during operating conditions.
Wheel Straps
- Used to tie down wheels of the towed vehicle when using wheel-
lift, car carrier, or dolly towing equipment to limit the potential for separation
of the towed vehicle from the towing apparatus.
Winch
- A device for winding and unwinding cable.
Wire Rope
- See Cable
Working Load Limit
- Minimum breaking strength divided by the factor of safety.
Wrap
- A single coil of wire rope wound on a drum.
Wrecker
- See Tow Vehicle, or Recovery Vehicle.
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