If you're having issues threading the bolt that attaches the backrest to the seat, try changing the angle of insertion. Here are some tips on getting the angle right:
- The J-bar bolt should be perpendicular to the J-bar stem. The bolt should also be at a 10 to 20-degree angle to the lift.
- Attach the backrest to the seat pan first, then set the seat pan upside down on a table to give yourself enough height to insert the J-bar into the seat pan slot.
- Adjust the angle of the J-bar as needed.
- Turn the bolt left as you insert it into the hole. This will help it catch the threading properly so that it can be screwed in.
Checkout the PDF version of the Capisco assembly guide here.