aks-S4
Figure 35
Figure 36
Figure 37
locked
unlocked
Test
Viewing window
Test
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z4200064_GA_Bett_S4_151015_EN
Emergency lowering
8.7
Lowering using the battery
In the event of a power failure, you can continue lowering the adjustment drives to their lowest
position once. This is made possible using the 9 Volt block battery in the controller. However,
the energy is only sufficient for one lowering. For safety reasons, the battery must be replaced
immediately after it has been used once or at every service according to the maintenance schedule.
Moving the drives using the emergency lowering must be done one after the other (do not move
several drives simultaneously).
Emergency lowering of the back part
If the back part has to be lowered more quickly than 30 seconds, lower the back part manually.
Proceed as follows:
Only perform the manual emergency lowering with two users!
The emergency lowering must only be performed by trained users.
Uncontrolled lowering of the back part can result in severe injuries for user and patient!
Practice the lowering under normal conditions so that you can lower the back part safely
in an emergency.
Lock function
8.6
The manual control unit is equipped with a lock function, i.e. the functions of the manual control
unit can be blocked with the associated key. Insert the key (Figure 35) in the rotary switch on the
rear side of the manual control unit (Figure 36). If an open padlock can be seen in the view window
of the key (Figure 37), the manual control unit is unlocked. On the other hand, the manual control
unit is blocked if a closed padlock can be seen. The rotary switch positions I and II are test functions
and are used for testing the first failure safety of the manual control unit. These tests are described in
the maintenance schedule.
Do not leave the key in the manual control unit. The user should carry this with him or keep it at a
secure location so that no unauthorised person can deactivate the lock function again.
