BM 3600 Sewing Machine Manual

The BM 3600 is a versatile household sewing machine featuring 36 built-in stitches, one-step buttonhole, automatic needle threader, drop-in bobbin system, adjustable stitch length and width, free arm capability, built-in LED light, and multiple presser feet. Powered by 110-120V AC, this machine is ideal for beginners and experienced sewers alike. Below are key sections for safety, features, setup, operation, maintenance, and troubleshooting.

1. Features at a Glance 2. Unpacking and Setup 3. First-Time Operation 4. Technical Specifications 5. Controls and Settings 6. Stitch Selection Guide 7. Threading and Bobbin 9. Maintenance & Cleaning 10. Warranty Information 11. Troubleshooting

Features at a Glance

Key components: 36 built-in stitches, automatic needle threader, drop-in bobbin system, free arm, LED work light, accessory storage.

Feature	Description
Built-in stitches	36 stitches including utility, decorative, and stretch
One-step buttonhole	Automatic buttonhole with consistent results
Automatic needle threader	Easy threading with push-button mechanism
Drop-in bobbin	Top-loading bobbin with clear cover
Free arm capability	Convertible for sewing sleeves and cuffs
LED work light	Bright illumination of sewing area
Stitch length adjustment	0-4mm range for different fabrics
Stitch width adjustment	0-5mm for zigzag and decorative stitches
Reverse stitch	Reinforce seams with reverse sewing
Accessory storage	Built-in compartment for presser feet and tools

Unpacking and Setup

Carefully unpack all components and place on stable surface.

Remove machine from packaging: Lift by carrying handle, not by free arm.
Install foot controller: Plug into machine port, place on floor.
Connect power: Plug power cord into machine and wall outlet.
Attach accessories: Install standard presser foot, needle, and bobbin.
Position machine: Ensure adequate lighting and ventilation.

WARNING! Machine is heavy; use proper lifting technique. Keep fingers away from needle area during operation.

First-Time Operation

Power on machine; follow setup procedure.

Thread machine: Follow threading diagram; use automatic needle threader.
Wind bobbin: Place empty bobbin on winder, thread through tension disc.
Insert bobbin: Drop bobbin into case with thread counterclockwise.
Select stitch: Turn stitch selection dial to desired pattern.
Test sew: Use scrap fabric to adjust tension and stitch settings.

CAUTION! Always turn off power when changing needles or cleaning machine.

Technical Specifications

Stitches: 36 built-in (6 utility, 23 decorative, 7 stretch)
Buttonhole: One-step automatic
Stitch Length: 0-4mm adjustable
Stitch Width: 0-5mm adjustable
Needle System: HA-1, 130/705 H
Bobbin: Class 15 transparent
Max Sewing Speed: 800 stitches per minute
Presser Feet: 4 included (zigzag, buttonhole, zipper, button)
Power Supply: 110V-120V AC, 60Hz
Dimensions: 15.4" x 7.1" x 11.8"
Weight: 12.1 lbs

Controls and Settings

Main controls: Power switch, stitch selection dial, stitch length dial, stitch width dial, reverse button.

Stitch Selection: Turn dial to select from 36 stitches (numbered 1-36). Stitch Length: 0-4mm (0 for darning, 4 for basting). Stitch Width: 0-5mm (0 for straight stitch, 5 for wide zigzag). Reverse: Hold button to reinforce seams. Thread Tension: Adjust dial for different fabrics (3-5 for medium weight).

Stitch Selection Guide

Reference chart for common sewing applications:

Stitch #	Type	Use	Length	Width
1	Straight	Seaming, topstitching	2.5	0
2	Zigzag	Overcasting, appliqué	2.0	3.0
3	3-step zigzag	Stretch fabrics, elastic	2.5	3.0
4	Blind hem	Invisible hemming	2.5	2.0
5	Buttonhole	Automatic one-step	Auto	Auto
6-12	Decorative	Embroidery, trims	2.0-3.0	2.0-5.0

Threading and Bobbin

Proper threading ensures smooth operation.

Raise needle: Turn handwheel to highest position.
Place spool: Put thread on spool pin, secure with cap.
Follow guides: Thread through upper tension, take-up lever.
Use needle threader: Push down lever, hook thread through needle eye.
Wind bobbin: Place on winder, press foot controller, cut when full.
Insert bobbin: Drop into case, pull thread through slot.
Bring up bobbin thread: Hold upper thread, turn handwheel.

Tip: Always pull threads under and behind presser foot before starting.

Maintenance & Cleaning

Regular maintenance ensures optimal performance.

Unplug machine before cleaning.
Remove needle plate: Clean lint from feed dogs and bobbin area.
Oil moving parts: Use sewing machine oil on hook race and mechanisms.
Replace needle: Change after 8-10 hours of sewing or for new project.
Cover machine: Protect from dust when not in use.

CAUTION! Use only sewing machine oil. Never use household oils.

Warranty Information

BM 3600 comes with 25-year limited warranty on mechanical parts and 2-year warranty on electrical components. Warranty covers defects in materials and workmanship under normal household use. Keep original receipt and warranty card. For service, contact authorized dealers or visit www.bmsewing.com. Customer support: 1-800-555-SEW.

Troubleshooting

Symptom	Possible Cause	Corrective Action
Thread breaking	Incorrect threading/tension	Rethread completely; reduce tension; check for burrs on needle.
Skipped stitches	Wrong needle/damaged needle	Replace needle; ensure correct type for fabric.
Uneven stitches	Incorrect tension	Adjust upper tension; reinsert bobbin properly.
Machine jams	Thread buildup	Remove needle plate; clean lint and tangled thread.
No power	Power connection	Check power cord; ensure foot controller plugged in.
Poor buttonhole	Stabilizer missing	Use stabilizer; check stitch width setting.

Reset: Turn off power, wait 30 seconds, restart.

Service: 1-800-555-SEW; www.bmsewing.com