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user manual li n e ar actu at orsandelectroni cs to learn more about linak please visit w w w linak c o m page 1 of 76

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contents preface valid for important information safety instructions manufacturer s declaration 1 system description fundamental actuator construction warranty and service life ip protection degree linak washing procedure for ipx6 washable products cable wash maintenance environmental conditions insulation class key to symbols mounting connecting the system jumbo system special information 4 5 6 6 8 10 11 12 12 13 14 15 15 16 16 18 19 20 2 information on start-up de-installation and operation 22 troubleshooting actuators/lifting columns 23 troubleshooting electronics 24 3 information on specific actuators 25 4 information on specific columns 40 5 information on specific controls boxes 47 6 information on specific controls 53 7 information on specific jumbo 58 8 information on specific accessories 61 9 repair and disposal 63 main groups of disposal 64 practical information 66 drawings 68 addresses 76 page 3 of 76

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preface dear user we are delighted that you have chosen a product from linak® linak systems are high-tech products based on many years of experience in the manufacture and development of actuators electric control boxes controls and chargers this user manual will tell you how to install use and maintain your linak electronics we are sure that your linak system will give you many years of problem-free operation before our products leave the factory they undergo full function and quality testing should you nevertheless experience problems with your systems you are always welcome to contact your local dealer linak subsidiaries and some distributors situated all over the world have authorised service centres which are always ready to help you linak provides a warranty on all its products this warranty however is subject to correct use in accordance with the specifications maintenance being done correctly and any repairs being carried out at a service centre which is authorised to repair linak products changes in installation and use of linak systems can affect their operation and durability the products are not to be opened by unauthorised personnel the user manual has been written on the basis of our present technical knowledge we are constantly working on updating the information and we therefore reserve the right to carry out technical modifications linak a/s page 4 of 76

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valid for this user manual is valid for the following products see the first 3 5 characters on the label actuators columns control boxes controls la12 la22 la23 la27 la28 la29 la30 la31 la32 la34 la44 la44 ic bb3 bl1 bl4 lc2 lp2 lp3 cb6 cb6s cb7 cb8-a cb8-t cb9 cb12 cb14 cb16 cb20 acc ack acl acm acp aco dph fpp fs fs2 hb20 hb40 hb50 hb60 hb70 hb80 hl70 hl80 iro ls/lsd baj1/2 cbj1/2 cbj-care cbj-home ch01 ch08 chj2 mbj1/2/3 ba18 cs16 djb mjb sls cobo20 jumbo systems accessories page 5 of 76

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important information description of the various signs used in this manual warning failure to comply with these instructions may result in accidents involving serious personal injury failing to follow these instructions can result in the product being damaged or destroyed safety instructions please read the following safety information carefully it is important for everyone who is to connect install or use the systems to have the necessary information and access to this user manual please be advised that linak has taken precautions to ensure the safety of the actuator system it is the responsibility of the manufacturer/oem to get the overall approval for the complete application linak recommends that the actuators should be used in push applications rather than pull applications if the actuator is used for push in an application where personal injury can occur e .g patient hoists a special safety nut must be used except for la34 which can be used for both push or pull applications if mounted with safety nuts in both directions persons who do not have the necessary experience or knowledge of the product/products must not use the product/products besides persons with reduced physical or mental abilities must not use the product products unless they are under surveillance or they have been thoroughly instructed in the use of the apparatus by a person who is responsible for the safety of these persons do not remain under the application during operation or operate the application when assembling disassembling moving parts moreover children must be under surveillance to ensure that they do not play with the product classification the equipment is not suitable for use in the presence of a flammable anesthetic mixture with air or with oxygen or nitrous oxide electromagnetic compatibility linak actuator systems bear the ce marking as an attestation of compliance with the emc directive 2004/108/ec the systems are designed to meet all requirements of applicable standards and have been tested to such requirements it is unlikely that the user will encounter problems with the actuator system because of inadequate electromagnetic compatibility however electromagnetic immunity is always relative and standards anticipate environments of usage if the user notes unusual behaviour of the actuator system in particular if such behaviour is intermittent and associated with the standing right next to mobile phones microwaves and radio broadcast masts this could be an indication of electromagnetic interference if such behaviour occurs try to move the actuator system further away from the interfering equipment electromagnetic emission is evaluated on a system level with the actuator either connected to a linak control box and accessories or to some customer built electronic control circuitry if used in other constellations and with external power supply precautions may be taken to avoid conducted emission page 6 of 76

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warning if the actuator or lifting column is used for pull in an application where personal injury can occur the following is valid it is the application manufacturer s responsibility to incorporate a suitable safety arrangement which will prevent personal injury from occurring if the actuator should fail residual risk some of the products contains software based components linak has done various possible efforts to assure that the software is free of errors and that the software has been developed according to the rules of iec 60601-1-4 software in medical products that involves risk analysis which shows a small residual risk for unwanted/unintended mow of actuators under specific conditions according to the above rules it must be informed and if nescessary considered in the risk analysis of the final application more details to residual risk can be provided by linak if nescessary warning note that during construction of applications in which the actuator is to be fitted there must be no possibility of personal injury for example the squeezing of fingers or arms warning the plastic parts in the system cannot tolerate cutting oil warning assure free space for movement of application in both directions to avoid blockade warning uninstructed personell must not operate the application or the actuator warning in the event of blockage by an obsticle when application is moving inwards removing the obsticle will cause the load to drop until spindle hits the nut warning do not turn outer tube warning do not use chemicals and inspect yearly for damage and wear warnings linak s actuators and electronics are not constructed for use within the following fields · planes and other aircrafts · explosive environments · nuclear power generation warning linak recommends that the actuators should be used in push applications rather than pull applications if the actuator is used for push in an application where personal injury can occur e .g patient hoists a special safety nut must be used except for the la34 which can be used for both push or pull applications if mounted with safety nuts in both directions warnings · if faults are observed the products must be replaced · never spray directly on the products with a highpressure cleaner page 7 of 76

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warning in the final application a linak control box must be placed where it is not imposed to any impact this is to prevent damage by accidentally being struck by an object in the hand of a passer-by or by a broomstick or a mop handle during cleaning the floor on a medical bed e .g this might be underneath the mattress support platform if necessary to mitigate this risk additional protection might be required warning do not shorten the battery other loads than self-discharge flatten the battery and cause formation of lead sulphate which if left in this state for too long will irreversibly damage the battery avoid bad impact on individuals and environment warning handle batteries carefully warning prevent foreign objects or persons from unintentionally activating a footswitch or a hand control at any time e .g during normal use or maintenance a hand control could be activated by squeezing e .g between the mattress and the bed frame/rails or when it hangs on an application that is activated by moving another application into it or by moving the application into something else e .g a wall furniture another application etc for actuators without plugs which are not connected to a linak control box the mains supply or the actuator must always be equipped with an arrangement that switches off the actuator at the end-stop for example ls or lsd limit switch if there is a risk of overloading the actuator the mains supply must be equipped with a safety device against overloading for example a cs16-pcb if these precautions are not observed the actuator can be damaged the linak products cannot tolerate the influence of strong solvents basic or alkaline liquids non-linak handsets linak handsets are designed specially for linak control boxes and they are designed to be highly reliable and flexible if the customer still wishes to use his own handset it is important to contact a linak sales person to find out the requirements with regard to the switches in the handset poor switches can destroy the control box the duty cycle printed on the label of the control box must always be noted if this is exceeded there is a risk of the control box being overheated and damaged unless otherwise specified on the label the duty cycle is max 10 max 2 min in use followed by 18 min not in use exceeding the duty cycle will result in a dramatic reduction of the product page 8 of 76

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1 system description usage/type of applications linak actuators lifting columns and electronics have been developed for use in all places where a linear movement is required linak s products can for example be used for · adjustment of beds · adjustment of furniture · adjustment of table heights and angles · patient hoists within the care and hospital sector · adjustment of industrial processing machines · adjustment of agricultural machines · adjustment of ventilation systems · adjustment of dentist chairs/gynaecological chairs · etc the principles of a linak system are as follows linak handset linak control box linak actuators or lifting columns attention should be paid to the following · control boxes must only be connected to the mains voltage specified on the label all din jack or minifit plugs from the cb6s/cb12/cb14/cb16/cb20 ipx6 washable should be locked by using a linak locking mechanism · the control box must be connected in such a way that the cables are not trapped exposed to tension or sharp objects when the application is moved in different directions · all control boxes with mains supply should be connected to the mains before they are able to work prior to first use of linak batteries please make sure that they are being charged 24 hours in order to reach proper function and prolong the lifetime of the batteries if the customer uses a non-linak battery it is important to check that the current is not reversed plus and minus swapped over this applies to both control boxes which always run off battery and control boxes with battery backup contact your nearest linak dealer for specification of type size etc the control current in the handset cable must not exceed 100 ma page 10 of 76

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the control box is the heart of the system and connects the various outlying units actuators lifting columns handsets and attendent controls control boxes differ widely in complexity the simplest are only able to convert control signals from the handset into operating voltage for the actuator the most advanced are microprocessor controlled and have advanced functions such as parallel running of several actuators and other complex correlations most linak control boxes provide an electronic overload protection eop designed to protect the actuator excl la12 la29 la31 la34 against overload by disconnecting the current when the actuator is fully extended or retracted if an la12 la29 la31 la34 actuator is used the built-in limit switches stop the actuator when fully extended or retracted and the control box only disconnects when the maximum current is exceeded when using a cb6s control box it is important to note that is does not have electronic overload protection the actuator is the unit which converts the operating voltage from the control box into a linear movement the principle of the linak actuator s mode of operation is that a low voltage dc motor 5 via a gear system 12 rotates a threaded spindle onto which a nut is fitted as this nut cannot rotate since the piston rod 2 is restrained the piston rod will move forwards or backwards when the threaded spindle rotates on the basis of motor type gearing and the threaded spindle s pitch the actuator s thrust and speed are determined the handset is the unit to be used when you want the linak® system to perform a movement it determines whether the control box will make the actuator move in or out there are many variants of linak handsets the attendant control acc ack acl acm acp aco is an accessory used when nursing staff want to restrict the patients adjustment options of a bed it is often used in conjunction with a handset and disables selected functions on the handset it can also have control functions with the same function as those on the handset for safety reasons open function activation of acp and aco acc ack requires activation of two buttons fundamental actuator construction 9 10 8 7 6 5 4 3 2 1 13 11 12 1 2 3 4 5 6 piston rod eye piston rod location of mechanical splines location of brake motor motor with optical switch 7 8 9 10 11 12 13 motor with potentiometer motor with reed-switch back fixture back fixture with electrical splines quick release mechanism transmission between motor and spindle cable for connection to 12/24/36v dc by means of plug via control box page 11 of 76

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the linak® warranty covers manufacturing defects in the products starting from the date of manufacture there is 36 months warranty on the homeline® products 18 months for medline® and careline® products and 12 months for the techline® products the warranty is limited to the value of the linak product linak s guarantee is only valid so far as the products have been used and maintained correctly and has not been tampered with furthermore the products must not be exposed to violent treatment in the event of this the warranty will be ineffective invalid linak s warranty is only valid if the system is unopened and has been used correctly all linak products are designed to have an optimum service life as a matter of course but the expected service life in a specific application is very dependent on how the products are used warranty and service life ip protection degree the products can be cleaned as follows according to their ip protection which is stated on the product label the ip code specifies the degrees of protection provided by the enclosures for most products only the protection against ingress of water second characteristic numeral is specified ingress of solid foreign objects or dust first characteristic numeral is not specified and therefore replaced by the letter x in the code for some special industrial products both the first and second characteristic numerals are specified this is a demand from the marked and will only be specified if tested and approved ip protection ipx0 ipx1 ipx2 ipx3 ipx4 ipx5 ipx6 ipx6 washable ipx6 washable according to iec 60601-2-52 cleaning instructions clean with a damp cloth clean with a damp cloth clean with a damp cloth clean with a damp cloth clean with a damp cloth wash with a brush and water but not water under pressure wash with a brush and water the water can be under pressure but the system must not be hosed down directly with a highpressure cleaner max 20oc clean by the use of wash tunnels clean by the use of wash tunnels according to iec 60601-2-52 ipx6 washable products can be washed in wash tunnels according to the following guidelines · the distance between the nozzle and the electrical parts must be at least 300 mm · the handset and motor plug must be pushed right in · the water temperature must not exceed 65°c in max 3 minutes · cooling with cold water is not permitted to avoid degreasing of the piston rod the actuator should be retracted to minimum stroke before washing warning the systems must not be sprayed directly with a highpressure cleaner warning interconnecting cables must remain plugged in during cleaning to prevent the ingress of water warning cleaning with a steam cleaner is not permitted page 12 of 76

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linak washing procedure for ipx6 washable products reference the linak washing procedure is defined to duplicate the washing process of a hospital using a wash tunnel this washing process has been chosen as it sets a high standard regarding the sealing effectiveness of the products use the ecolab product sekumatic fre or a similar product with corresponding properties as detergent use the ecolab product sekumatic fkn or a similar product with corresponding properties as softener the linak washing machine is built with a large washing chamber containing more shelves onto which the test products can be placed each shelf is surrounded by sprayjet rotor they spray the test products from above and below so that all surfaces of the test products are sprayed upon for more details see the picture below data for the linak development department s test-washing machine chemicals design upper sprayjet rotor sprays downwards middle sprayjet rotor sprays both up and downwards lower sprayjet rotor sprays upwards water volume each of the sprays supplies approx 6 litres of water pr minute the equivalent of the test products on each of the shelves being sprayed with a totalt of approx 75 l/min both during the washing process and during the rinsing process spray pressure both during the washing process and the rinsing process the washing machine operates with a spray pressure of 0,4 bar overpressure temperature the water temperature in both washing and rinsing is constant at 65°c during the first 2 minutes the products are washed with 65° warm water and are here warmed up after a few seconds the products are rinsed with 65° warm water for one minute and then cooled down in the ambient air temperature for about 15 minutes a total cycle lasts for about 20 minutes the diagram below is a graphic illustration of the process if linak products with the ip protection class ip66 washable go through a washing process which differs considerably from the above there will be no guarantee for either the function or the life of the product page 13 of 76

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comparison between temperature profile for linak and reference washing process from a hospital with a washing tunnel · actuators are tested in the closed run inwards position · cb s are tested with plugs fitted · the washing cycle is repeated 200 times during each test cable wash before the washing procedure starts in order to maintain the flexibility of the cables it is important that the cable is placed in such a way that the cable s own weight does not strain the coil during the washing process this can be done by placing the cable on the bed or another form of support for the cable please see the examples in the below pictures page 14 of 76

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maintenance valid for all linak products · the linak products must be cleaned at regular intervals to remove dust and dirt and inspected for mechanical damage wear and breaks · the linak products are closed units and require no internal maintenance · only type ipx6 is waterproof and type ipx6 washable tolerates being washed in tunnels · the linak products must be ipx6 washable when cleaning in wash tunnels make sure that the plugs are correctly fitted with o-rings before washing · o-rings when individual parts are replaced in a linak ipx6 or ipx6 washable system the o-rings on all parts must be replaced at the same time on control boxes with a replaceable mains fuse the o-ring in the fuse cover must be replaced every time the cover has been removed the o-rings must be greased in water free vaseline when replacing them make sure that the counterpart the socket is clean and undamaged valid for all linak actuators and lifting columns · actuators/lifting columns must be inspected at attachment points wires piston rod cabinet and plugs as well as checking that the actuator/lifting columns function correctly · to ensure that the pregreased inner tube remain lubricated the actuator must only be washed down when the piston rod is fully retracted valid for all linak control boxes and handsets · electronics must be inspected at attachment points wires cabinet and plugs · inspect the connections cables cabinet and plugs and check for correct functioning does not apply to battery versions · with the exception of the cs16 the control box is sealed and maintenance free · inspect at regular intervals that the ventilation aperture on the external battery is positioned correctly and is intact throughout its length approx 20 mm see figure 1 environmental conditions storage and transport operating temperature relative humidity atmospheric pressure storage temperature relative humidity atmospheric pressure transport if the actuator is assembled in the application and is exposed to push or pull during transportation the actuator can be damaged do not drop an actuator or otherwise damage the housing during disassembly or transportation we do not recommend using an actuator which has been damaged valid where nothing otherwise is stated under the specific products in a later section -10°c to +50°c 20 to 90 30°c ­ not condensing 700 to 1060 hpa 5°c to 40°c 20 to 90 30°c ­ not condensing 700 to 1060 hpa page 15 of 76

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