677.1 Service life guaranteeThe service life guarantee period for the adventure is 24months (for batteries 12 months) and begins the day that thevehicle is handed over to the purchaser.Excluded from the service life guarantee are:- Parts subject to wear.- Maintenance work arising from daily use.- Faults resulting from natural wear and incorrect usage, inparticular not observing the operating instructions.- Accidents, negligent damage, fire, water damage, acts ofgod and other causes beyond the control of alber.- Checking the device and finding no defects.- Devices whose serial number has been changed,disfigured or removed.The operating noise of the drive motors may increase slightlyon completion of the running-in period. This is not the resultof wear on mechanical components and therefore, is notincluded in the durability guarantee.In particular the General Standard Terms and Conditions ofUlrich Alber GmbH apply.7.2 LiabilityUlrich Alber GmbH cannot guarantee the safety and fulloperability of the adventure wheelchair, if- the adventure has been handled improperly- the adventure is not maintained every two years by anauthorised specialist dealer or Ulrich Alber GmbH- the adventure is used in contravention of the instructionscontained in this operating manual- repairs or other tasks are carried out by anyone other thanauthorised persons- foreign parts are attached to or combined with theadventure- parts of the adventure are dismantled or convertedand therefore, is not responsible for damage that may occur.7 Service life guarantee and liability