Setup and ownership
Bobbin access and the care your model requires
Bobbin access is something you will use repeatedly, so it deserves a place beside stitch choice and motor controls. It also shapes the cleaning routine. Compare the actual bobbin system, then follow the exact guide when clearing lint and applying oil; a general rule about all mechanical or all computerized machines is unreliable.
A front-loading case is a separate setup task
The bernette 33 and b35 use front-loading bobbin cases. Remove the small sewing table, open the cover and release the case by its latch. The thread then follows the case's slot and tension spring before you seat the case correctly.
This is a learnable routine, but it differs from placing a bobbin under a top cover. If a sewing demonstration includes a top-loading bobbin while the machine you are ordering has a front-loading case, ask to see the actual setup before deciding that the threading process suits you.
A drop-in bobbin still needs the correct part
The b37 and b38 have top-loading hook systems. Their current guides call for J-marked plastic bobbins for the horizontal hook and warn that other bobbins can cause problems. Match the specified part rather than choosing a replacement by approximate diameter or the appearance of a pre-wound bobbin.
When changing a bobbin, follow the illustrated thread direction and path. When cleaning more deeply, the removable bobbin holder also has a correct installed position. Easy top access does not mean every part can be dropped back in any orientation.
Use the current model's oiling instructions
The January 2026 b33 and b35 guides describe removing the shuttle components, brushing and wiping the race, then placing one or two drops of suitable sewing-machine oil at the indicated location. Excess oil can reach fabric, so wipe away what the instructions identify as excess and test before continuing a finished project.
The current b37 and b38 guides also contain an oiling instruction: two drops on the specified felt in the center of the hook race. The b38's cleaning routine additionally addresses lint around the thread-cutter mechanism. “Computerized” therefore does not establish that these machines need no user oiling. Equally, that instruction should not be copied to an unrelated machine whose guide gives a different routine.
Keep care within the illustrated access
Switch off and unplug before the instructed cleaning or disassembly. Use the brush, dry cloth and access points shown for the model, and limit disassembly to what the guide describes. A control-circuit error or a damaged part may need the dealer or service center rather than more oil or deeper dismantling.
Plan a dry storage place, space for the removed table and feet, and a way to keep the correct bobbins identified. A maintenance routine that is easy to repeat can matter more than a decorative feature you use once. Compare the long reviews for each model's controls and package, then keep its own current manual with the machine.