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For example: During the rear axle test of the automatic test you already braked while
the wheels had not yet hit the friction surface. After completion of the complete
automatic test you can manually choose to do the rear axle test again. By doing so,
you overwrite the results of the original rear axle test. The other results remain
unchanged.
3.1.3. The rolling resistance test
In addition, the Brake Test Menu offers the possibility to do a rolling resistance test.
After choosing this test, you let the vehicle slowly roll over the plates, without
touching the brake pedal (neutral gear advisable). With this you can determine
whether one or more wheels have excessive rolling resistance.
Another possibility with this test is to drive on and brake firmly and release your foot
briefly from the pedal during the test. From the graphs you can then see whether the
brakes release correctly, or if there is any ovality of the brake drums.
3.2. A brake test on a 4-plate version
On a 4-plate Brake Analyser the service brake is tested in one run; front and rear
axle at the same time. Apart from the time saving aspect, this test has a number of
other advantages in comparison to a test on a 2-plate version:
• the brake force ratio between front and rear is clearly shown.
• (time-)synchronisation between front and rear is clearly shown.
The 4-plate brake test can be carried out in automatic as well as in manual mode.
REFERENCE BOOK FOR AREX MODULAR WINDOWS GC SYSTEMS