Lift chair repair - As with any form of mechanical device, your Invacare wheelchair, using its moving parts (as well as in some cases, motor and battery), should have all parts working smoothly to ensure that it to function correctly. Proper wheelchair maintenance is an important part of keeping a wheelchair in peak condition, and is also something that should be performed regularly. Still, you will see instances when, despite proper maintenance, replacing of a number of your Invacare wheelchair parts will be necessary.