Successful conversion of a straight stairlift to L-shaped stairs aka curved Acorn/Bruno (R) lift

Hello, this is Rob's Worldwide Stairlift Repairs and Relocations from Vancouver, BC, Canada. I hope that you're doing well. My team provides 24-hour tech support, 7 days a week, anywhere, either in-person, or by video chat, at $75 an hour. Watch our 100+ video repair diaries online, many of which include real-people client reviews.
We are also hired to disassemble and haul stairlifts to metal recyclers. However, we would really prefer to see used stairlifts put back in use. Therefore, we repair, then re-install, any, and all, stairlifts.
Here are the challenges encountered by Rob's Worldwide Stairlift Repairs during the re-installation of a used Bruno (R) straight stairlift, in lieu of an Acorn 180 curved stairlift. The end-user saved $14,000 by going with a used Bruno stairlift.
1. Before we arrived, the chairlift would no longer move upwards, after four runs, which created a false low-voltage condition, to the client. Happily, Rob's battery analyzer instrumented testing showed 3.17 volts and 3.2 volts. Both batteries were therefore, still very good, contrary to guesswork by a Bruno engineer, who tried to diagnose the problem, over the phone, to the client.
2. Chair sensor fault.
3. Safety sensor fault. Obstacle up-sensor was triggered incorrectly.
4. Down-sensor fault triggered by internal wiring, instead of an actual, external, obstacle.
5. Corroded power connections.
6. Electric current on metal parts during testing were preventing the motor from running 100%, due to the AC RIPPLE, emanating from the motor's back-EMF, which was discovered by Rob's team.
7. The tendency of the rail to incorrectly settle into its stands, contrary to its critical installation-measurement requirements.
8. Chair-wobble partly due to carpeted floors.
9. Preventing voltage from reaching the aluminum rail prior to the installation of plastic-copper strips.