Allocation Testing - With Control Pressure - WABCO Compact Tester Bedienungsanleitung

GB
5.4 Allocation Testing - with con-
trol pressure -
4 k.p.h.
wheel speed
modulator
actuation
control pressure
Pulse Programme 1:
4 k.p.h.
wheel speed
modulator
actuation
control pressure
Pulse Programme 2:
In order to check all electrical/pneumat-
ic allocations of sensors/modulators, a
supply of compressed air is needed.
Requirement:
• brake cylinders pressureless
• otherwise similar to allocation testing
- without control pressure -
Testing:
• Turn wheel (v > 4 k.p.h.).
• Actuate brakes.
22
pressure
decrease
pulse
hold
Commissioning cycle of right-hand wheels B, D and E if applica-
ble (if 6M ECU is being used) with control pressure
pressure
decrease
pulse
hold
Commissioning cycle of left-hand wheels A, C and F if applicable
(if 6M ECU is being used) with control pressure
• Solenoid actuation begins, wheel
being turned is evacuated and that
wheel can now be turned for approx.
3 seconds.
• If the wheel cannot be turned after
having been evacuated, the sensor/
modulator allocation is wrong.
• To facilitate differentiation between
wheels A, C and F, they are not fully
evacuated at once but are pulsed
(testing without any auxiliary equip-
ment).