Brother CS6000i Service Manual

The Brother CS6000i is a versatile computerized sewing and quilting machine featuring 60 built-in stitches, an automatic needle threader, a drop-in top bobbin, a wide table, and a speed control slider. This service manual provides detailed information for maintenance, troubleshooting, and repair. Below are key sections covering safety, features, maintenance procedures, error codes, parts identification, and technical specifications.

1. Features at a Glance 2. Safety Precautions 3. Maintenance Procedures 4. Technical Specifications 5. Parts Identification 6. Error Codes & Troubleshooting 7. Disassembly Instructions 9. Calibration & Adjustment 10. Care & Cleaning 11. Regulatory Information 12. Troubleshooting Guide

Features at a Glance

Key components: Computerized control panel, LCD screen, automatic needle threader, drop-in bobbin system, built-in LED light, wide extension table, and accessory storage.

Feature	Description
Built-in Stitches	60 stitches including utility, decorative, heirloom, and quilting stitches
Automatic Needle Threader	Easily threads the needle with a simple lever mechanism
Drop-in Top Bobbin	Quick-set, jam-resistant bobbin system with clear cover
Wide Table	Extension table for larger projects like quilts
Speed Control Slider	Adjustable sewing speed for precision work
LCD Screen	Displays selected stitch, stitch length/width, and error messages
Buttonhole Styles	7 one-step automatic buttonholes
Needle Position	Automatic needle up/down function
Free Arm	Convertible for sewing sleeves and cuffs
Power Switch	Main power control on the right side of the machine

Safety Precautions

Before performing any service, ensure the machine is unplugged from the electrical outlet.

Disconnect Power: Always unplug the machine before cleaning, maintenance, or repair.
Use Proper Tools: Use only Brother-approved tools and replacement parts.
Avoid Moisture: Keep the machine and electrical components dry.
Secure Work Area: Place the machine on a stable, flat surface during service.

WARNING! Risk of electric shock. Never operate the machine with covers removed or internal components exposed.

Maintenance Procedures

Regular maintenance ensures optimal performance and longevity.

Cleaning: Remove lint and dust from feed dogs, bobbin case, and hook race after each project.
Oiling: Apply sewing machine oil to designated points as indicated in the manual (typically every 3-6 months).
Needle Replacement: Replace bent or dull needles immediately to prevent damage.
Bobbin Care: Use only Brother bobbins; wind evenly and insert correctly.

CAUTION! Over-oiling can attract lint and cause staining. Use oil sparingly.

Technical Specifications

Model: Brother CS6000i
Type: Computerized Sewing and Quilting Machine
Stitches: 60 built-in stitches
Buttonholes: 7 one-step automatic styles
Max Sewing Speed: 850 stitches per minute
Needle Positions: Adjustable left, center, right
Stitch Length: Adjustable up to 5mm
Stitch Width: Adjustable up to 7mm
Power Supply: 120V AC, 60Hz
Dimensions: 16" x 6.7" x 11.4" (with extension table)
Weight: 13 lbs

Parts Identification

Main components for service reference.

Front Panel: LCD screen, stitch selection buttons, stitch length/width controls, reverse stitch button, auto needle up/down button.

Internal: Main circuit board, motor, hook assembly, feed dog mechanism, bobbin case, tension discs, handwheel.

External: Power switch, foot pedal connector, accessory tray, extension table, presser foot holder, needle clamp.

Error Codes & Troubleshooting

Common error codes displayed on LCD and corrective actions.

Error Code E1: Thread tension issue. Re-thread top and bobbin threads.
Error Code E2: Bobbin-related error. Remove and reinsert bobbin case.
Error Code E6: Motor overload. Turn off machine, wait 5 minutes, restart.
Error Code F1/F3: Sensor malfunction. Check hook area for obstructions.

Tip: Refer to the error code chart in the manual for specific reset procedures.

Disassembly Instructions

Step-by-step guide for accessing internal components.

Unplug machine and remove all accessories (foot, needle, bobbin).
Remove top cover screws (4) and lift off cover carefully.
Remove front panel screws (2) to access control board connections.
Remove side covers to access motor and drive belt.
Document wire connections before disconnecting any cables.
Use plastic tools to avoid scratching surfaces.

WARNING! Internal components are sensitive. Handle with care and avoid static discharge.

Calibration & Adjustment

Procedures for calibrating machine functions.

Needle Position Calibration: Access service mode (press specific button combination) to reset needle position sensors.

Thread Tension Adjustment: Adjust upper tension dial and bobbin case tension screw for balanced stitches.

Feed Dog Timing: Align feed dogs with needle plate marks using handwheel rotation.

Motor Speed Calibration: Adjust potentiometer on control board if sewing speed is inconsistent.

Care & Cleaning

Unplug before cleaning. Use a soft brush and lint roller for lint removal.

CAUTION! Do not use compressed air as it can force lint deeper into mechanisms. Never spray cleaners directly on the machine.

Regulatory Information

FCC Part 15: Class B digital device; complies with interference limits for residential use. Copyright © Brother Industries, Ltd. For technical support and genuine parts, visit www.brother-usa.com or contact 1-877-467-4289. This product incorporates safety standards per UL 60335-1 and CSA C22.2 No. 60335-1.

Troubleshooting Guide

Symptom	Possible Cause	Corrective Action
Machine not turning on	Power cord, outlet, fuse	Check power connection; test outlet; replace fuse if accessible.
Uneven stitches	Incorrect threading, tension, needle	Re-thread completely; adjust tension; replace needle.
Thread breaking frequently	Needle size, thread quality, tension	Use correct needle for thread type; reduce tension; use quality thread.
Fabric not feeding	Feed dogs lowered, presser foot pressure	Raise feed dogs; adjust presser foot pressure.
Unusual noise	Lint buildup, bent needle, loose parts	Clean hook area; replace needle; tighten screws.

Reset: Unplug machine for 10 minutes to reset computerized functions.

Service: 1-877-467-4289; www.brother-usa.com