WABCO MOBILE TEST BENCH 453 197 003 0, User Manual, Page: 29 / 136

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MOBILE TEST BENCH
4.3 Function
Fig. circuit diagram
The mobile test bench is divided into four areas. These can be described as
follows:
Area C ‘Supply’
Area C, ‘Supply’, is responsible for the compressed-air supply of the mobile
test bench via the compressed-air system of the workshop.
– For this purpose, connect the coupling of the blue supply hose to the barb
nipple P
in
on the mobile test bench.
– Make sure that the S8 switch cock is in zero position.
– Now connect the blue supply hose to the compressed-air system on site.
– Use the precision control valve V8 to adjust the pressure to the intended
level for the subsequent test procedure.
– Once the pressure has been adjusted to the desired level you can open
switch cock S8.
 The pressure thus set is now applied to the three independent
circuits in the ‘Control’ area.
Area A ‘Control’
The ‘Control’ area is responsible for the pneumatic actuation of the
specimen. Three independent circuits, to which three pressure gauges
(G1 - G3), three switch cocks (S1 - S3) and three compressed-air outlets
(C1 - C3) are respectively assigned, are available for this purpose.
– First, connect a compressed-air hose (C1 - C3) to a compressed-air
outlet.
en