VC4000 Manual
19
accelerometers, show the available record time in seconds,
display the run number being saved, and then display:
4. Position the vehicle before the scene of the accident
allowing enough distance to accelerate to your desired target
speed. (As an example back up approximately 300 feet). A
typical braking test speed on dry pavement is 30 mph for
vehicles equipped with standard brakes and 45 mph for
vehicles equipment with ABS.
5. Press the
Auto Start
key. The VC4000 will display 'Auto-
Start-Ready' and the current G reading.
6. Accelerate the car to the desired initial braking speed. After
reaching the desired initial braking speed, hit the brakes
hard and fast, applying maximum brake pedal pressure until
the vehicle comes to a complete stop.
7. If you wish to do another skid test on the same slope (in the
same direction) do not press the
CLEAR / NO
key and the
VC4000 will retain the calibration for that grade. Press the
“Braking” key and repeat step #4.
When testing the performance of a vehicles braking system, perform
the tests on a
flat and level
surface. An optional brake pedal
activation switch is available if required.
1. Drive to an area that is flat and level.
2. To power on, press the
POWE R
key and hold for 1 second
until the unit beeps.
PUSH
AUTO START
Testing Brake Performance
Содержание VC4000
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