Victoria 537 Manual ((link)) [ VALIDATED - CHOICE ]

The 537 generally uses a front-loading oscillating hook system. You will need to:

Ensure the thread sits deep between the discs. Take-up Lever: Thread through the eye from right to left. Needle: Usually threads from front to back. 2. Bobbin Winding and Insertion victoria 537 manual

Use only high-quality sewing machine oil. Place a single drop on any moving metal parts and the hook race. The 537 generally uses a front-loading oscillating hook