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Operations IW4/IW7 WB/WBV
22 D1 0412BA1-GB04
3.4 Preparations for a Brake Test
The procedures described here are for normal operation of 4 wheel drive test stands. (4 wheel
drive switch to position "0"). There is a seperate description available for the 4 wheel drive
test. (See Tele-BPS II + RCF 30 operating manual).
If the test stand is equipped with an internal scale no weight may burden the roller set when the
test stand is switched on. Otherwise the weighing electronic will store this switch on weight as an
Offset value and the measurement will be distorted.
! Enable main switch
The needle of the display will complete an offset balance and return to zero.
! Press POWER ON key
Press POWER ON button or the '*' key on the remote control.
The white POWER ON lamp should now be lit up. The needles will again adjust and return to
zero. The test stand is now ready for operation!!
On test stands without a PC-console but equipped with a DIN A4-printer which is offline or
defective, the message "Printer defective (ONLINE?)" will appear after switch-on. If the test
should be carried out without the printer, the printer can be de-activated by pressing the Power
On button again.
! Select the measuring range (optional)
If the test stand is equipped with a manual measurement range button, use it to select the
desired measurement range. The integrated green lamp will light up when the large
measurement range is selected.
! Conduct a single-wheel test (optional)
Test stand which are not equipped with a remote control have a single wheel switch which
facilitates single wheel testing. Depending on the test stand version the Power-On key must
be pressed after a single wheel test.
The rollers will start up automatically after a single wheel test when the switch has been re-set to
the 0 position.
3.5 Running a Brake Test
The manufacturer does not accept any liability claims for damage to low lying vehicle parts.
Drive first axle to be tested onto the roller set switch into idle. After the delayed start-up, the
motors will be started individually. Should the motors switch off again immediately, the start-up
monitor has been triggered to protect your vehicle and/or its tires against damage. One or both
wheels may be jammed (seized bearings, jammed brake pads, etc.).