Brother PE900

• The reviewed source does not supply a broader needle-system code. Never use bent needles.

Use recommended home sewing machine needles.

• These are a general recommendation and a heavyweight-fabric condition, not a blanket machine-wide range.

For embroidery, the manual recommends a 75/11 home sewing machine needle; if stitching is poor on heavyweight fabric, try a 90/14 needle.

• Raise the needle, lock the controls, and remove or reinstall embroidery foot Q as directed. Tighten securely with the screwdriver without excessive force.

Insert a straight needle with its flat side toward the rear until it touches the needle stopper, then securely tighten the needle-clamp screw.

• Use the supplied plastic bobbin or bobbins of the same type. The Class 15 wording does not prove every marketed Class 15 bobbin is equivalent.

The manual identifies Brother SA156 as a Class 15 type bobbin.

• Height and material alone are not a universal substitution test; other bobbins can damage the machine.

The specified plastic bobbin or same type is 11.5 mm (approximately 7/16 inch) high.

• Lock all keys and operation buttons first and keep the bobbin held down while routing the thread. The source's bobbin symbol is only an orientation reference.

Place the correctly wound bobbin so its thread unwinds left, hold it down, guide the thread around the cover tab and through the slit, cut the thread, and replace the bobbin cover.

• Lock all keys and operation buttons, raise the presser-foot lever, use the exact foot Q, and firmly tighten the screw. A wrong or loose foot can cause needle strike and injury. This does not establish a standardized shank class or universal foot compatibility.

Hold embroidery foot Q with an index finger around its rear lever. While pressing the lever, place its bar above the needle-clamp screw, keep the foot vertical, and secure it with the embroidery-foot screw.