Manual for Rimoldi 227 Sewing Machine

The Rimoldi 227 is an industrial sewing machine designed for heavy-duty applications, featuring high-speed stitching capabilities, automatic lubrication system, reverse stitching function, adjustable stitch length, thread tension control, and built-in needle positioning. Suitable for various materials including leather, canvas, and heavy fabrics. Below are key sections for safety, features, installation, operation, maintenance, and troubleshooting.

1. Features at a Glance 2. Installation 3. First-Time Setup 4. Specifications 5. Controls and Settings 6. Threading Instructions 7. Operation Guide 8. Maintenance Schedule 9. Care & Cleaning 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: Heavy-duty motor, automatic oiler system, reverse lever, stitch length regulator, tension discs, bobbin winder, presser foot lifter.

Feature	Description
Motor Type	Industrial clutch motor with foot pedal control
Stitching Speed	Up to 2,500 stitches per minute
Lubrication System	Automatic oil circulation with visible oil reservoir
Reverse Stitching	Built-in reverse lever for back-tacking
Stitch Length	Adjustable from 1-6 mm
Needle System	134x1 industrial needles
Bobbin Type	Rotating hook with class 15 bobbins
Presser Foot	Adjustable pressure with quick-release mechanism
Thread Tension	Upper and lower tension controls
Lighting	Built-in LED work light

Installation

Unpack and inspect contents. Mount on industrial table or stand.

Position machine: Place on stable industrial table at comfortable working height.
Install motor: Attach clutch motor to machine head following wiring diagram.
Connect power: Use proper industrial power outlet (220V/380V depending on model).
Install belt: Connect motor to machine with drive belt, adjust tension.
Fill oil reservoir: Use recommended sewing machine oil only.

WARNING! Machine is heavy; use proper lifting equipment. Ensure all electrical connections are grounded.

First-Time Setup

Prepare machine for initial operation.

Thread machine: Follow threading path indicated on machine.
Wind bobbin: Use built-in bobbin winder with proper thread.
Insert needle: Ensure flat side faces correct direction.
Adjust tension: Start with medium setting and test on scrap material.
Test stitch: Run machine on scrap material to check performance.

CAUTION! Keep fingers away from needle area during operation. Always disconnect power when threading or changing needles.

Specifications

Machine Type: Industrial Lockstitch Sewing Machine
Stitch Type: 301 Lockstitch
Maximum Speed: 2,500 SPM
Stitch Length: 1-6 mm adjustable
Needle Size: #11-21 (70-110)
Presser Foot Lift: 10 mm maximum
Throat Space: 280 mm
Motor Power: 550W industrial clutch motor
Power Supply: 220V/380V, 50/60Hz
Machine Weight: 35 kg

Controls and Settings

Main controls located on machine head and motor assembly.

Machine Head: Handwheel, reverse lever, stitch length regulator, tension dials, presser foot lever, bobbin winder.

Motor Assembly: Foot pedal, power switch, speed adjustment.

Stitch Length: Rotate regulator knob (1-6 mm). Thread Tension: Upper tension dial (0-9), lower tension via bobbin case screw. Needle Position: Manual adjustment via handwheel. Presser Foot Pressure: Adjust with spring tension knob.

Threading Instructions

Proper threading is essential for optimal performance.

Upper threading: Follow numbered path from spool pin to needle.
Bobbin winding: Place thread on spool pin, wrap around tension disk, insert through bobbin hole.
Bobbin insertion: Open hook cover, insert bobbin with thread unwinding counterclockwise.
Bring up bobbin thread: Hold upper thread, rotate handwheel toward you.
Check tension: Both threads should pull evenly when testing.

Tip: Always use same thread type in both needle and bobbin for balanced stitches.

Operation Guide

Daily operation procedures for optimal performance.

Power on: Switch motor power to ON position.
Position material: Place fabric under presser foot, lower foot lever.
Start sewing: Press foot pedal gently to begin, increase pressure for higher speed.
Reverse stitching: Engage reverse lever at beginning and end of seams.
Guiding fabric: Guide material gently without pulling or pushing.
Stopping: Release foot pedal completely, raise presser foot, remove material.
Cut threads: Use built-in thread cutter or scissors.

WARNING! Never place hands near moving needle. Always disconnect power when not in use.

Maintenance Schedule

Daily: Clean lint from bobbin area and feed dogs. Weekly: Oil machine according to lubrication chart. Monthly: Check belt tension and motor alignment. Annually: Professional service recommended.

Care & Cleaning

Disconnect power before cleaning. Remove lint buildup daily with brush. Wipe exterior with dry cloth. Use compressed air for hard-to-reach areas.

CAUTION! Use only recommended sewing machine oil. Do not use compressed air on oil reservoir.

Regulatory Information

CE certified for industrial use. Complies with European machinery directive 2006/42/EC. Manufactured according to ISO 9001 quality standards. For technical support, contact authorized Rimoldi service centers. Copyright © Rimoldi Manufacturing.

Troubleshooting

Symptom	Possible Cause	Corrective Action
Thread breaking	Incorrect tension/damaged needle	Adjust tension settings; replace needle; check for burrs on throat plate.
Skipped stitches	Wrong needle size/bent needle	Use correct needle for fabric; replace bent needle; check needle insertion.
Uneven stitches	Improper feeding/tension	Clean feed dogs; adjust presser foot pressure; balance thread tension.
Machine jams	Thread buildup/poor maintenance	Remove thread jam; clean hook area; check for proper oiling.
Motor not running	Power issues/foot pedal	Check power connection; inspect foot pedal cord; verify motor switch position.

Service: Contact authorized Rimoldi service center for major repairs.

Technical Support: Available through regional distributors.