Ask aks-S4 User manual

Aktuelle Krankenp ege Systeme GmbH
Antwerpener Straße 6
D-53842 Troisdorf
 +49(0)2241/9474-0
� +49(0)2241/9474-88
 [e-mail]
 www.aks.de
aks-S4
Homecare bed with SMPS
Operating manual
Stand: 2015-10-15

aks-S4
Page 2
z4200064_GA_Bett_S4_151015_EN
TABLE OF CONTENTS
1 Introduction ____________________________________________________________ 3
2 Intended purpose________________________________________________________ 4
3 General safety instructions________________________________________________ 5
4 Scope of delivery ________________________________________________________ 7
5 Product overview ________________________________________________________ 9
6 Assembly ______________________________________________________________ 10
7 Commissioning_________________________________________________________ 15
8 Operation _____________________________________________________________ 16
9 Patient transport _______________________________________________________ 22
10 Accessories / combination _______________________________________________ 23
11 Troubleshooting / fault clearance _________________________________________ 24
12 Care / cleaning _________________________________________________________ 25
13 Storage _______________________________________________________________ 26
14 Reuse _________________________________________________________________ 26
15 Service life _____________________________________________________________ 26
16 Disposal _______________________________________________________________ 26
17 Warranty ______________________________________________________________ 27
18 Declaration of conformity________________________________________________ 27
19 Maintenance ___________________________________________________________ 28
20 Product labelling _______________________________________________________ 32
21 Technical Data _________________________________________________________ 34

aks-S4
Page 3
z4200064_GA_Bett_S4_151015_EN
Introduction1
The aks‑S4 homecare bed meets the requirements of a modern homecare bed and can ideally be
integrated into the existing residential environment due to its wood decor. It has been tested for the
application cases 3 and 4 of the standard EN 60601‑2‑52. This includes use in domestic care and in
old people’s and care homes. The use of the aks‑S4 homecare bed means more quality of life for the
patient and making the work easier for the care personnel.
Among other things, the aks‑S4 homecare bed is also distinguished by the following features:
safety due to modern switch mode power supply (SMPS) with surge voltage protection, short•
circuit protection, overcurrent and temperature shutdown
minimal electromagnetic waves; as a result, no transformer humming is possible•
electricity saving because the power supply is in standby mode when the bed is not being•
operated
safety due to 29 V instead of 230 V from mains adapter, i.e. no 230 volts voltage in the power•
lead and at the homecare bed
motorised height and back part adjustment•
patented possible adjustment of thigh and lower leg part using the manual control unit by•
the patient without manual lifting of the lower leg part
homelike ambience due to wood decor•
integrated wood side grills•
individually lockable castors•
uplifter•
suitable for installation alone•
The present operating manual gives you the necessary information for safe use.
Read and observe this operating manual before every use.
In the case of a change of owner, pass on this operating manual.

aks-S4
Page 4
z4200064_GA_Bett_S4_151015_EN
Intended purpose2
The aks‑S4 homecare bed is an active Class I medical product according to EU Council Directive
93/42/EC, Appendix IX.
The intended use of the aks‑S4 homecare bed is sleeping / resting. It is used for alleviation of or
compensation for an injury, disability or illness and for making the working conditions easier for the
carers.
It has been tested for the application cases 3 and 4 of the standard EN 60601‑2‑52. It is therefore
intended both for domestic care as well as for long‑term care in a medical sector (e.g. old people’s
homes and care homes, rehabilitation facilities, geriatric facilities).
The bed is suitable for adult patients and not for children. The suitability of the homecare bed for the
patient must be determined by the professional assessment of the health professional.
The homecare bed is only suitable for dry indoor areas.
The climatic conditions must be an ambient temperature of 0 °C to 40 °C, humidity of 20% to 80%,
air pressure of 700 hPa to 1060 hPa and in the range of normally composed atmospheric air. The
homecare bed is not EX‑protected and must not be operated in potentially explosive areas.
The homecare bed does not have any potential equalisation and is thus not suitable for medical,
electrical applications.

aks-S4
Page 5
z4200064_GA_Bett_S4_151015_EN
General safety instructions3
Only use the homecare bed in accordance with its intended purpose, the requirements of•
the medical products law and all related legal regulations, the occupational health and safety
and accident prevention regulations as well as the generally recognised rules of standard
engineering practice.
Note that this homecare bed is a medical product and the Medical Products Operator•
Regulations (MPBetreibV) are binding for the operating organisation / user.
The requirements for the electrical installation of the room / area where the homecare bed is•
connected and operated must comply with the state of the art.
Only use the homecare bed if you have been instructed about its handling and you have the•
corresponding expert knowledge.
Read the operating manual completely before commissioning in order to avoid damage due•
to incorrect operation or hazards. It contains important information and instructions which
are necessary for the proper operation of the homecare bed.
Only use the homecare bed in accordance with the present operating manual. Keep the•
operating manual safely for possible reference. Include this operating manual in the case of
change of ownership of the homecare bed.
Ensure the homecare bed and its accessories are in proper, fault‑free condition before every•
use.
Note that the installation, operation, maintenance and repair of the homecare bed must only•
be performed by suitable qualied personnel.
You as the user and/or owner must ensure (e.g. by corresponding instructions and•
precautions) that mechanical load of the 29 V power cable during use is avoided (e.g. kinking,
shearing, driving over the cables with the homecare bed itself or with equipment trolleys,
loads during room cleaning etc.). This also applies to cables for other equipment which is
used in combination with the homecare bed.
Pay attention to compliance with the activation time and the safe working load. These must•
not be exceeded, otherwise reliable operation can no longer be guaranteed (see Chapter
7 Commissioning and Chapter 21 Technical Data).
Protect the aks homecare bed from direct sunlight and heat.•
Ensure that no moisture penetrates into the electrical system.•
Note that possible electromagnetic or other inuences between the homecare bed and other•
equipment cannot be ruled out. If there is a risk of interactions, disconnect the homecare bed
from the mains power supply by unplugging the mains adapter.

aks-S4
Page 6
z4200064_GA_Bett_S4_151015_EN
Faults due to the use of mobile communications devices cannot be completely ruled out.•
Therefore, maintain a safety distance of at least 3.3 m to guarantee reliable operation of the
homecare bed. ‑ See position paper of the German Federal Institute for Drugs and Medical
Products (BfArM) (reference No.: 9 / 0508) ‑
Do not leave children in the surroundings of the homecare bed unsupervised. If necessary,•
remove the mains adapter from the mains power socket and block the manual control unit
against unauthorised operation.
If you leave the person to be cared for unsupervised, move the lying area to the lowest•
position in order to reduce the risk of injury due to falling when getting in and out of the bed
or by falling out.
If the homecare bed has to be moved, lower the lying area elements so that they are horizontal•
and put the bed in the lowest position. Raise the side grills for the patient transport. Attached
equipment must be removed.
Use the side grills if there is a danger of the person to be cared for falling out of the bed.•
Note that the side grill only provides protection against falling out if it is raised on both sides
(head and foot) and if the lying area elements such as back, thigh and lower leg part are in the
horizontal position.
Only use original side grills as these have been approved by aks and ensure faultless and safe•
function.
‑‑ Non-original aks side grills can cause hazards! ‑‑
When using the side grills, check their suitability for the respective bed user taking account•
of his special characteristics. Pay particular attention to the distances between the bars and
stays in relation to the physique of the bed user. Check whether the side grill height from
the top side of the mattress is at least 220 mm. If this is less than 220 mm, use our tested and
approved side grill height extenders.
There is a higher risk for unsupervised persons lying in the bed who are also mentally•
deranged or extremely fragile. Strictly comply with the safety instructions shown here in order
to minimise the residual risk. Block the manual control unit if necessary.
In the case of unusual noises, damage or malfunction, the homecare bed must not be further•
operated. Disconnect the homecare bed from the mains power supply by unplugging the
mains adapter from the mains power socket. Inform your authorised dealer.

aks-S4
Figure 01 Figure 02
Figure 03 Figure 04
Page 7
z4200064_GA_Bett_S4_151015_EN
Scope of delivery4
The homecare bed has already been inspected at the factory for freedom from defects and
completeness. Nevertheless, check the product immediately after receipt for possible transport
damage.
After removing all individual parts, check the completeness of the scope of delivery. If all individual
parts of the scope of delivery are not present, contact your authorised dealer.
The aks‑S4 homecare bed is delivered in cartons with the following scope of delivery:
Table 01
Quantity Carton Contents
1KA
(head support) 1x head support (Figure 02)with 6x Allen bolt (pre‑assembled, Figure 10)
1FA
(foot support)
1x foot support (Figure 01) with 6x Allen bolt (Figure 10) pre‑assembled,
2x extension tube (connected to the frame, Figure 06), 1x carton with controller, manual
control unit and switch mode power supply (Figure 08)
1 SH 1x scissor lift (Figure 03), 1x uplifter with handle and safety strap (Figure 07), 1x bag with
Allen key, transport lock and operating manual (Figure 09)
1 SP 2x mirror panel (Figure 04)
1 HSG 4x wood side bar (Figure 05)

aks-S4
Figure 05 Figure 06
Figure 07 Figure 08
Figure 09 Figure 10
Page 8
z4200064_GA_Bett_S4_151015_EN

aks-S4
Figure 11
Uplifter
Back part
Side grills
Castor with
locking device
Manual control unit
Mains adapter
Handle with strap
Thigh and lower
leg part
Scissor lift
Mirror panel
Back part drive with
controller
Scissor lift drive
Page 9
z4200064_GA_Bett_S4_151015_EN
Product overview5

aks-S4
Figure 12
Figure 14
Figure 13
Page 10
z4200064_GA_Bett_S4_151015_EN
Assembly6
In addition to the supplied 6 mm Allen key, you also need a Phillips screwdriver and a side cutter for
the assembly.
If you have established based on Chapter 4 Scope of delivery that the delivery is complete and not
damaged, perform the installation in the following steps:
Place the scissor lift with the castors on the oor and brake the rear castors (Figure 12).1.
Remove the two side Allen bolts M8x16 with spring washer at the support mountings of the2.
head support (Figure 13).
Attach the head support with the support3.
mountings to the side round tubes of the
scissor lift. Let one end of the head support
rest on the oor (Figure 14).
For xing the head support, screw the two4.
Allen bolts M8 x16 with spring washer tightly
into the support lugs on the side (Figure 13).
Remove all Allen bolts on the longitudinal5.
tubes of the head and foot supports.
Detach the extension tubes from the foot6.
support and insert the individual extension
tubes in the longitudinal tubes of the foot
support. Screw in the two Allen bolts for
xing the extension tubes loosely.

aks-S4
Figure 17
Figure 15 Figure 16
Figure 18
Page 11
z4200064_GA_Bett_S4_151015_EN
Let one end of the head support rest on the scissor arm (Figure 15). Move the foot support7.
forwards and at the same time attach the C‑rails to the castors on the scissor arm.
When both C‑rails are on the castors, move the foot support so far until the cross member (see8.
arrow) comes against the scissor lift drive. You can set down the foot support in this position
(Figure 16).
Hold the head and foot support in the middle and connect both supports together using the9.
extension tubes (Figure 17).
Screw all 8 Allen bolts tightly at the connection points of the lying area (Figure 18).10.
Remove the cable ties on the head and foot support.11.
Temporarily connect the scissor lift drive to the controller and move the scissor lift to its12.
maximum height. Then disconnect the scissor lift drive from the controller.

aks-S4
Figure 20
Figure 22
1234
H
Z
Figure 21
H
Z
Figure 19
Page 12
z4200064_GA_Bett_S4_151015_EN
Push the controller onto the back part drive and secure it against slipping sideways using the13.
xing screw (Figure 19).
Press the strain relief of the power cable into the holder on the head side (Figure 20).14.
Connect the manual control unit to the controller and install the strain relief (Figure 21).15.
Now connect the plug connections for the drives according to Figure 22.16.
H= connection for manual control unit
1= connection for back part drive
2= connection for thigh part drive
3= connection for height adjustment drive in the scissor lift
4= blank plugs
Z= strain relief for manual control cable
Note: Strictly ensure the cable of the manual control unit is fastened to the strain relief Z,
otherwise cable breaks can occur at the plug connection.

aks-S4
Figure 26
Figure 24
Figure 25
Figure 23
Connector cover strip
Page 13
z4200064_GA_Bett_S4_151015_EN
Do not operate the controller with open sockets.
There is a risk of short circuit or re in the event of ingress of moisture / liquid.
Fasten the connector cover strip to the controller (Figure 23).17.
Insert a mirror panel in the longitudinal tubes at the foot end of the lying area (Figure 24).18.
Fasten the mirror panel using 2 Allen bolts.
Attach the side grill bars to the side grill sliders and place the respective free end on the lying19.
area (Figure 25).
However, only insert the second mirror panel at the head end so far into the longitudinal20.
tubes that it sticks (Figure 26).

aks-S4
Figure 27 Figure 28
Page 14
z4200064_GA_Bett_S4_151015_EN
Now lightly attach the lower side grill bars to the guide pins of the side grill slider (Figure 27).21.
Insert the mirror panel further until you can also attach the upper side grill bars to the guide22.
pins.
Then insert the mirror panel as far as the stop and fasten it using two Allen bolts. Check the23.
side grill for function.
Insert the uplifter on either the left or right (your choice) in one of the head side receptacles24.
(Figure 28) and, if not already done, attach the grab handle to the uplifter (see section
8.3 Uplifter).
Insert the transport lock into the free uplifter socket (see Chapter25. 9Patient Transport).
For commissioning the homecare bed, proceed as described in Chapter26. 7 Commissioning.

aks-S4
Page 15
z4200064_GA_Bett_S4_151015_EN
Commissioning7
Before the commissioning and after every new assembly of the homecare bed, the safe condition
of the homecare bed must be established using the maintenance information in Chapter
19 Maintenance.
An inspection according to EN 62353 must be performed for this in order to discover possible
damage or defects which have occurred during the transport or the installation at the operating
site.
Ensure there is sucient clearance from other objects such as wall, window bench and power sockets
and also ceiling lamp during the positioning of the homecare bed. If the homecare bed should be
adjusted for height, the castors must always be braked.
The homecare bed must only be connected to a mains power supply with 100 to 240 Volts
alternating current with 50/60 Hz. For the connection of the homecare bed, the 29 Volt power cable
must be laid so that it cannot be dragged, driven over or endangered by moving parts during the
operation of the homecare bed. Also ensure that the mains adapter is always accessible in order to
be able to disconnect the homecare bed from the mains power supply in an emergency.
Note:
The Medical Products Operator Regulations (MPBetreibV) are binding for the operating
organisation / user of medical products.
The motorised adjustment is not suitable for continuous operation.
The maximum switch-on time (ED) of 2 minutes must not be exceeded.
A pause of at least 18 minutes must follow the switch-on time.
Note:
In order to counteract any overload of the electrical components, the control unit is tted with a self‑
resetting fuse.
If the activation time is exceeded or the minimum cooling time is not achieved, the overload
protection automatically switches o the drive system. After an adequate cooling down phase, the
overload protection automatically releases the drive system again. For this reason, several electrical
functions must not be performed simultaneously for the adjustment of the homecare bed.

aks-S4
Figure 29 Figure 30
Figure 31
(1) (2)
Page 16
z4200064_GA_Bett_S4_151015_EN
Operation8
Castors8.1
The homecare bed is tted with 4 individually lockable castors. The individual locking enables you to
brake each castor individually and secure the homecare bed against accidental rolling away. Operate
the foot pedal in the corresponding position to release and set the brake (Figure 29 + 30).
Ensure that the castors are always braked unless you intend to transport the patient.
Side grills8.2
The risk of the patient accidentally falling out of the homecare bed is reduced by the use of side
grills.
In order to use the side grills, pull these up slowly at
the top side bar on the head and foot side until the
side grill gliders engage.
To lower the side grills, rst raise the top side bar (1)
so that the locking of the release buttons is released.
While raising keep the release button (2) pressed
until the top bar has lowered over the locking. Let
the side grills down slowly (Figure 31).

aks-S4
Page 17
z4200064_GA_Bett_S4_151015_EN
Strictly observe the following safety instructions when using the side grills:
Check the side grills for correct locking after every raising.•
The side grill only provides protection against falling out if it is raised on both•
sides (head and foot) and if the lying area elements such as back, thigh and lower
leg part are in the horizontal position
When using the side grills, there is an increased risk of crushing and shearing•
and a general risk of wedging and falling out due to gap dimensions too large.
Therefore, the suitability of the side grills must be checked taking account of the
particular characteristics of the respective bed user, in particular the distances
between bars and stays in relation to the physique of the bed user. Ensure that the
side grill height from the top side of the mattress is at least 220 mm. If this is less
than 220 mm, use a side grill height extender.
Before every adjustment of the back part or thigh and lower leg part, ensure that•
no limbs of the patient are between the side grills.
Uplifter8.3
Position the uplifter in the left or right retaining socket depending on requirement (see Chapter
6 Assembly, Figure 28). It can be swivelled from the centre of the bed to the edge of the bed for
better getting in and out of the homecare bed.
Fasten the loop of the grab handle between the two limiting pins and adjust the height of the grab
handle to the patient’s individual needs in the possible adjustment range of 30 cm.
The safe working load of maximum 80 kg of the uplifter must not be exceeded.

aks-S4
Figure 33
0 ‑ 70°
40 ‑ 90 cm
0 ‑ 37° 0 ‑ 23°
0 ‑ 14°
Figure 32
Back part Seat part Thigh part Lower leg part
Page 18
z4200064_GA_Bett_S4_151015_EN
Lying area8.4
The lying area of the aks‑S4 homecare bed can be adjusted electrically. It consists of several elements
which are shown in Figure 32. The following adjustments for the lying area can be made:
Height adjustment of the lying area
The lying area can be continuously adjusted for height from 40 cm to 90 cm. In doing so, the castors
must be braked (Figure 33).
Angular adjustment of the back part
The back part can be continuously adjusted from 0° to 70° (Figure 33). The adjustment of the back
part is independent from the adjustment of the thigh and lower leg parts.
Angular adjustment of the thigh part
The thigh part can be innitely adjusted from 0° to 37°. The lower leg part is coupled in doing so
(Figure 33).
Patented angular adjustment of the lower leg part
The aks‑S4 homecare bed is equipped with ratchet adjusters between the thigh and lower leg parts.
These enable the patient to adjust the lower leg part using the manual control unit (without the
otherwise required nursing personnel) (Figure 33). Perform the following steps for this:
Move the thigh part completely up. In doing1.
so, the lower leg part moves with it.
Now move the thigh part down again.2.
In doing so, up to 4 stages of the ratchet
adjuster are moved to one after the other.
Reaching each individual stage can be
recognised by an audible click. Stop the
thigh part at the required stage.
Now move the thigh part up again to the3.
required position. The lower leg part is now at
a certain angle to the thigh part. This angular
setting is xed by the ratchet adjuster.
If a dierent angle between thigh part and lower leg
part should be set, you must move the thigh part
completely into the horizontal position. The ratchet
adjuster is then disengaged. The angle can now be
reset as described in steps 1 to 3.

aks-S4
Figure 34
Adjustment of the
back part
Adjustment of the
thigh part
Height adjustment
of the lying area
Page 19
z4200064_GA_Bett_S4_151015_EN
Manual control unit8.5
Sucient clearance for the movement must be
ensured when operating the electrical adjusters.
Neither objects nor limbs must be located in the
adjustment range.
In order to perform the electrically powered
functions, press the corresponding function button
on the manual control unit until the desired position
is reached (Figure 34). In doing so, note that always
only one function can be performed. Otherwise the
electrical system can disconnect due to overload.
If the manual control unit is not needed, hang this
on the manual control unit hook on the top side
bar.
There is a rotary switch on the rear side of the
manual control unit which is operated using the
associated key. As well as the lock function described
in Section 8.6, the manual control unit cable can be
tested with this. The cable is OK if the homecare bed
does not react to the manual control unit in switch
position I or switch position II (Figure 36). This also
refers to the emergency lowering using the battery.
Otherwise the cable is defective and must be
replaced via your authorised dealer.

aks-S4
Figure 35 Figure 36 Figure 37
locked
unlocked
Test
Viewing window
Test
Page 20
z4200064_GA_Bett_S4_151015_EN
Emergency lowering8.7
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 sucient 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 function8.6
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 rst 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.