Applying sewing oil to rotary hook

Keep Your BAI Embroidery Machine Running Smoothly: The Ultimate Lubrication Tutorial

Regular lubrication is the unseen hero behind flawless stitches. This guide, based on BAI TV’s comprehensive tutorial, walks you through oiling and greasing key parts of your BAI embroidery machine—from daily hook care to biannual gear greasing. Learn the simplest lineup of oils to keep your stitches steady and your machine whisper-quiet for years to come.

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Table of Contents
  1. Introduction to Embroidery Machine Maintenance
  2. Essential Lubricants and Tools
  3. Daily & Weekly Sewing Oil Application
  4. Bi-Weekly Synthetic Motor Oil Maintenance
  5. Bi-Annual Lithium Grease Application
  6. Reassembly and Post-Maintenance Checks
  7. From the Comments: Real-World Maintenance Insights

Introduction to Embroidery Machine Maintenance

The video starts with Alan from BAI TV outlining the goal: keep your machine’s performance steady by following a routine lubrication plan.

Title card showing How to Oil & Maintain on screen
The tutorial opens with a crisp title card inviting viewers into the maintenance session.

Why Regular Maintenance is Crucial

Oiling and greasing reduce heat, friction, and early part wear. Neglecting this step shortens machine lifespan and can throw off timing or tension.

Understanding Your BAI Machine's Needs

Each lubrication zone—hook, needle bars, shafts, and gears—has its own rhythm. The rotary hook drinks sewing oil daily, while the rear gear cluster only needs grease twice a year. Users seeking accessories like the bai embroidery machine hoop often forget that cleanliness and oil balance matter just as much as the right hoop.


Essential Lubricants and Tools

A solid maintenance session starts with knowing your materials.

Demonstration of three BAI machine lubricants on a table
The three lubricants—sewing oil, synthetic motor oil, and lithium grease—lined up for easy identification.

Types of Oil: Sewing Oil vs. Synthetic Motor Oil

Sewing oil is your high-frequency friend—thin, easy to penetrate, and perfect for areas like hooks and needle bars. Synthetic motor oil, thicker and built for endurance, supports drive shafts and rails.

Close-up of sewing oil bottle
Sewing oil is the most frequently used lubricant for daily and weekly upkeep.

Understanding Lithium Grease

Applied with a soft brush, lithium grease cushions large gears and keeps torque steady. It’s a long-term barrier against metal-on-metal stress—ideal for gears inside your BAI housing or those supporting the bai embroidery machine frame.

Tools for Precision Lubrication

Use a long-spout bottle to reach narrow slots and an oiling pen for delicate bars. A cross screwdriver and soft brush complete the kit.

Toolbox containing sewing oil
Sewing oil is often provided with the machine’s standard toolkit.
💡 Wipe each area clean before reapplying oil. Dust or old grease can thicken and block motion paths.

Daily & Weekly Sewing Oil Application

First up, the parts that move most often.

BAI embroidery machine ready for maintenance
Always power off the embroidery machine before oiling to prevent accidental movement.

Oiling the Rotary Hook (Daily)

Unplug the machine before touching anything. Remove the bobbin case, clean loose thread, and add 3–5 drops of sewing oil to the rotary hook.

Bobbin case removed to show rotary hook
Removing the bobbin case gives clear access to the rotary hook for daily oiling.
Applying sewing oil to rotary hook
Applying 3–5 drops of sewing oil keeps the hook’s rotation smooth and prevents wear.
✅ If you stitch every day, this small task should be daily too. Just don’t overfill—too much oil can drip onto fabric, so test on scrap after each session.

Lubricating the Needle Bars (Weekly)

Once a week, give the upper and lower needle bars three to five steady drops of sewing oil each. Use a long-spouted bottle for precision reach.

Oiling upper needle bar
Each upper needle bar receives a few steady drops of sewing oil once per week.
Oiling lower needle bar
Similarly, the lower needle bars are lubricated to maintain balanced motion.

Keeping this rhythm ensures clean vertical motion and quieter operation—especially when using accessories like the bai embroidery hoops that rely on time-tight tension.


Bi-Weekly Synthetic Motor Oil Maintenance

This step targets the motor-driven path that powers every stitch.

Adding synthetic motor oil near control panel
Motor oil application near the control panel lubricates the main drive shaft bi-weekly.

Lubricating the Main Drive Shaft

Locate the small hole near your control panel and add 3–5 drops of synthetic motor oil every two weeks. This maintains speed consistency even on larger projects hooped with bai mighty hoop.

Oiling the X-Axis Rail

Rotate the rear black knob counterclockwise to expose the oil port. Drop 3–5 more into the rail channel. Wipe excess drips, and test motion by sliding the carriage lightly by hand.

Lubricating rear X-Axis rail
The rear rail receives 3–5 drops of synthetic motor oil every two weeks.
⚠️ Using sewing oil instead of motor oil here shortens lubrication intervals and risks uneven drive torque.

Bi-Annual Lithium Grease Application

Twice a year, your BAI’s heart gets some heavy-duty care.

Removing side cover to access gears
Opening the side housing exposes gears for grease application every six months.

Greasing the Main Drive Gears

Power down, remove screws, and gently lift the side cover. With a soft brush, coat every gear tooth evenly with lithium grease as you manually rotate the black knob.

Brushing lithium grease onto gears
Lithium grease is evenly applied using a soft brush while rotating the knob.
✅ Gears should look moist, not packed. Wipe any excess clumps to avoid sling-off during operation.

Applying Grease to Internal Connections

Move wires aside carefully and apply grease to the internal connection part.

Greasing internal connection part
Applying grease to the internal connectors ensures a whisper-smooth mechanism.

The result? Smooth transitions between head movement and the control assembly. Frequent operators using multi-head frames like bai magnetic embroidery hoop find this step critical for stable synchronization.


Reassembly and Post-Maintenance Checks

Reinstall all covers and verify every screw is tightened. Align wires safely inside channels before closing panels.

Machine display after successful maintenance
Once reassembled, verify that the machine powers on normally with no needle errors.

When powering on, a “No Needle” notification may appear—press OK and turn the color-change knob until any number other than 00 shows. Your embroidery platform is now fully serviced.

✅ The display should read normal operation settings. Test with a short run on spare fabric instead of production material to clear excess oil, as BAI support recommended in the comments.

Users working with advanced hooping systems such as bai magnetic hoops can combine this maintenance with calibration checks to ensure precise registration.


From the Comments: Real-World Maintenance Insights

BAI’s community weighed in with useful clarifications drawn from practical experience:

  • Grease Selection: One viewer asked about using general Mobil 1 grease. BAI confirmed that fully synthetic or lithium-based versions are best.
  • Oil Substitution: When another user wondered if sewing oil could replace grease, the official reply was clear—use lithium grease every six months for those back connections.
  • Design Updates: Some skeptics noted differences between older and newer videos. BAI explained that after customer feedback, engineers simplified the lubrication layout to make upkeep more approachable.
  • Performance Concern: A sewist saw thread tails after stitching; BAI advised contacting sales reps for assignable technician checks, suggesting potential hook timing issues.

Engaged feedback and timely responses reflect a learning loop between BAI engineers and machine owners—proof that consistent maintenance literacy benefits everyone. Many commenters noted smoother stitching and quieter runs after following these updates, echoing how the bai embroidery machine design rewards regular care.


Final Thought: Think of oiling as mindfulness for machinery—small, steady actions that keep creativity effortless. After every maintenance session, your machine hums more quietly and stitches more confidently.

Loosening screws on BAI machine cover
The front cover is removed with a cross screwdriver to expose the hidden needle bars.
Removing cover to reveal internal needle bars
Internal needle bars ready for thorough oiling behind the cover panel.
Applying oil to internal bars
Oil is applied with a long-spout bottle for precision on hidden components.