1 691 606 210 2010-09-21| Robert Bosch GmbH
Product description | BSA 43xx | 21BSA 43xx | 21 | 21
en
3.6.4 Set of rollers
The set of rollers is the central element of the BSA 43xx. The reaction occurring on braking is measured by sensors,
recorded, evaluated and transferred by way of the field bus system (BNet) to the display unit.
5 6 7
952000-01_IN
Fig. 5: Set of rollers
Item
Designation Functions
1
2
Cover plates
Left
Right
Protect the mounts of the test rollers against damage and contamination.
Secured with bolts.
2, 3
4, 5
Test rollers
Left
Right
Transmit their rotation to the wheel to be tested by way of friction. Standard test rollers are provid-
ed with a plastic/corundum coating. Due to the very high coefficient of friction, high braking forces
are transmitted even with a low axle load.
Each pair of rollers is driven by a separate electric motor. Power is transmitted between the test
rollers on each side by way of a chain drive.
6 Center cover plate Protects the drive motors, chain drives and roller set control system beneath it.
5
7
Slip roller
Left
Right
Monitors the running of the wheel (slip check) and the wheel position and thus implements the
switching and safety function of the dynamometer. A foot guard is provided beneath the slip rollers.
3.7 Commissioning
! Commissioning is only to be performed by an autho-
rized service engineer.
i The installation conditions must be satisfied before
the start of erection work by a service engineer. Fur-
ther information can be found in the planning folder.
! The specifications given in the planning folder are
minimum requirements designed to ensure cor-
rect installation of the BSA 43xx. Any particular
local legislation, guidelines and standards must
be observed with regard to the specifications.
Robert Bosch GmbH does not accept any liability for
damage arising from non-observance of local regula-
tions.
3.8 Operation
Operation of the BSA 43xx is described in the operating
instructions.
Remaining hazard warning
The possibility of remaining hazards cannot
be excluded.
¶ Observe the safety instructions. Refer to
"User information".
¶ Wear protective clothing and equipment.