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9. Care, safety inspections (maintenance) and disposal
9.1 Care
Water ingress can destroy the drive.
For this reason do not clean the twion under running water or with a high-pressure cleaner.
Ensure that no liquid or moisture reaches the wheel hub. Cleaning the twion is therefore a task that must be carried out with special care.
Please observe the following instructions in particular:
• Clean the surface of the wheels with a dry or slightly damp cloth.
• Never use scouring pads, abrasive detergents or aggressive chemicals.
• Never clean the twion under running water, for example, using a hose or a high-pressure water jet. This can cause water ingress, causing
irreparable damage to the electronics.
Ulrich Alber GmbH shall not be liable for damage caused by water inside the device.
Please note that such damage is not covered by our warranty.
9.2 Re-use
If your twion has been provided to you by your health insurance company and you do not need it any longer, please contact your health
insurer, Alber agent or authorised specialist dealer. Your twion can then be given to somebody else.
Before the twion is re-used, its safety must be checked. The brackets with which the twion wheels are attached to the wheelchair can be
easily and quickly removed by your authorised specialist dealer or Alber agent and fitted to another.
In addition to the cleaning instructions given in chapter 9.1, before re-using the system the push rims and all externally accessible plastic
parts of the twion wheels need to be disinfected (see also chapter 9.2). To do this, use a detergent suitable for wet disinfection and
adhere to the use instructions.
9.3 Maintenance (safety inspections)
Legislators have regulated how to carry out safety inspections in the German Medical Devices Operator Ordinance (MPBetreibV). Safety
inspections (hereinafter referred to as STK) are intended to verify the operation and safety of the product, uncover any defects and, if
necessary, initiate steps/repairs that will restore the product to proper working order.
Section 6 of the MPBetreibV stipulates that the manufacturer has to specify an interval at which this STK is to be performed and which
must not exceed 2 years with regard to the products listed in appendix 1. Based on our market observations, an interval of 2 years has
proven reasonable for products used as mobility aids that are used under normal operating conditions.
This guideline value of 2 years may vary with the product‘s respective degree of utilisation and the behaviour of the user. Checking the
degree of utilisation and the user behaviour is the responsibility of the operator.
In any case, we strongly recommend that you clarify beforehand to what extent the cost of the STK is covered by your health insurance
provider, especially with regard to any existing contracts.
9.4 Disposal
This device, its batteries and accessories are durable products.
They might however contain substances that are hazardous to the environment, if the parts are disposed of in locations
(e.g. landfills) that are not destined for the disposal of such materials according to the applicable statutory regulations.
The product is labelled in accordance with European Directive 2002/96/EC (WEEE Directive) with a “crossed-out rubbish
bin” symbol, reminding you that it must be recycled.
Please protect the environment and return the product at the end of its service life to your local recycling centre.
As this product is not covered by the regulations of the WEEE Directive in all European countries, please inform yourself
of the applicable waste disposal regulations in your country. In Germany, the product is, for instance, classified as a
transport vehicle and, thus, not covered by the Electrical and Electronic Equipment Act implementing the WEEE Directive.
Alternatively, return the twion to your authorised specialist dealer or Ulrich Alber GmbH for proper and environmentally safe disposal.
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