1. Most lift truck manufacturers offer a keyless power switch for their electric units. Contact your local dealer and they should be able to help you. Would advise you don't go to NAPA and buy any switch.
2. A simple solutions for your customer would be to have the key wired to the forklift to solve the lost or taken home key issue.
3. With regard to unauthorized operation of a forklift or a type of forklift that is a company management issue.
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