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Design and Function
SUSPA ELS3 HeavyDuty - Installation Instruction
Page 20
4.2
Design and Function of the Height Adjustment System Including the
HeavyDuty Subframes
The lifting elements are driven by electric motors and synchronized by an electric controller. The
system works purely electromechanically. The Height Adjustment System is optimized for OEM or
retrofit applications and consists of three important subsystems:
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Electrical lifting element
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Electrical controller
▪
Manual switch
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HeavyDuty subframes (2-leg and 4-leg)
The following explains how the subsystems work together and make the raising and lowering of
the Height Adjustment System possible.
Figure 3 Electrical controller SMS SCT4
Figure 4 Electrical
lifting element
Figure 5 Simple manual switch UBM-F/2-p
Figure 6 Programmable manual switch UBS/6-
LCD (optional)