Singer Sewing Machine Model 1725 Manual

The Singer Model 1725 is a classic straight-stitch sewing machine featuring a powerful motor, built-in light, reverse stitching capability, adjustable stitch length, built-in bobbin winder, drop-in bobbin system, adjustable presser foot pressure, and multiple feed dog positions. Powered by 120V AC, this machine is designed for home sewing projects with durable metal construction and easy-to-use controls. Below are key sections for safety, features, setup, operation, maintenance, and troubleshooting.

1. Features at a Glance 2. Installation & Setup 3. First-Time Operation 4. Specifications 5. Controls and Settings 6. Threading the Machine 7. Basic Sewing Operations 8. Maintenance & Cleaning 9. Accessories 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: Metal frame construction, built-in motor, bobbin winder, stitch length dial, reverse lever, presser foot lifter, built-in light.

Feature	Description
Stitch Length Dial	Adjusts stitch length from 0-4mm
Reverse Lever	For backstitching to secure seams
Built-in Bobbin Winder	Winds bobbins while machine is threaded
Drop-in Bobbin System	Easy bobbin loading and viewing
Presser Foot Lifter	Raises and lowers presser foot
Built-in Light	Illuminates sewing area
Tension Control Dial	Adjusts upper thread tension
Power Switch	Turns machine on/off
Foot Pedal	Controls sewing speed
Hand Wheel	Manual control of needle position

Installation & Setup

Unpack and inspect contents. Place on stable sewing table.

Remove protective packaging and oil from all metal surfaces.
Attach foot pedal: Connect pedal cord to machine's pedal jack.
Plug into AC power outlet: Use included power cord.
Install needle: Loosen needle clamp screw, insert needle with flat side to back, tighten screw.
Install bobbin: Wind bobbin using built-in winder, then place in bobbin case.

WARNING! Machine is heavy; lift with care. Ensure stable surface before operation.

First-Time Operation

Power on machine; follow threading sequence.

Thread upper thread: Follow numbered guides from spool to needle.
Wind bobbin: Place empty bobbin on winder, engage winder mechanism.
Insert bobbin: Drop bobbin into case with thread unwinding clockwise.
Pull up bobbin thread: Hold upper thread, turn hand wheel to bring up bobbin thread.
Test stitch: Use scrap fabric to test tension and stitch quality.

CAUTION! Keep fingers away from moving needle. Always turn off when threading.

Specifications

Model: Singer 1725
Stitch Type: Straight stitch only
Stitch Length: 0-4mm adjustable
Speed: Up to 1,100 stitches per minute
Bobbin: Class 15 metal bobbins
Needle: 15x1 household needles
Presser Feet: Low shank attachment
Power Source: 120V AC, 60Hz
Weight: 25 lbs (11.3 kg)
Dimensions: 15" W x 7" H x 6" D

Controls and Settings

Main controls located on machine body and foot pedal.

Machine Controls: Power switch, stitch length dial, reverse lever, tension control, presser foot lifter, hand wheel.

Stitch Length: Adjust with dial (0 for darning, 4 for basting). Tension: Normal setting 4-5; adjust for different fabrics. Reverse: Hold lever for backstitching. Presser Foot Pressure: Adjustable for different fabric thicknesses. Feed Dogs: Lower for darning or free-motion sewing.

Threading the Machine

Follow numbered threading guides on machine.

Place thread spool on spool pin.
Pull thread through first thread guide.
Pass thread through tension discs.
Thread take-up lever from right to left.
Pass through remaining thread guides.
Thread needle from front to back.
Pull 4-6 inches of thread behind presser foot.

Tip: Always raise presser foot when threading to open tension discs.

Basic Sewing Operations

Straight stitch sewing for various fabrics.

Position fabric: Place fabric under presser foot, lower presser foot.
Start sewing: Gently press foot pedal to begin stitching.
Guide fabric: Use hands to guide fabric, don't pull or push.
Reverse stitch: Hold reverse lever at beginning and end of seams.
Finish sewing: Raise needle to highest position, raise presser foot, remove fabric.
Cut threads: Use thread cutter or scissors to trim threads.

WARNING! Never sew over pins. Remove pins before they reach presser foot.

Maintenance & Cleaning

Regular maintenance ensures optimal performance.

Daily: Brush out lint from bobbin area and feed dogs.
Weekly: Oil moving parts with sewing machine oil.
Monthly: Clean tension discs with soft cloth.
As needed: Replace needle after 8-10 hours of sewing.

CAUTION! Unplug machine before cleaning or maintenance. Use only sewing machine oil.

Accessories

Standard accessories included with machine.

Accessory	Use
All-purpose foot	General sewing
Zipper foot	Installing zippers
Buttonhole foot	Making buttonholes
Seam ripper	Removing stitches
Brush	Cleaning lint
Extra needles	Replacement needles
Bobbins	Extra bobbins
Screwdriver	Needle plate removal

Regulatory Information

UL Listed: Certified for home use in United States and Canada. Copyright © Singer Manufacturing Company. All rights reserved. For technical support, contact Singer Customer Service at 1-800-4-SINGER or visit www.singer.com. Made for household use only.

Troubleshooting

Symptom	Possible Cause	Corrective Action
Thread breaking	Incorrect threading/tension	Re-thread machine; adjust tension; check for burrs on needle.
Skip stitches	Bent needle/wrong needle	Replace needle; ensure correct needle type for fabric.
Bobbin thread bunching	Incorrect bobbin threading	Re-thread bobbin; check bobbin case for lint.
Machine won't run	Power connection/foot pedal	Check power cord; ensure foot pedal is connected properly.
Uneven stitches	Tension issues/fabric feeding	Adjust upper and bobbin tension; clean feed dogs.
Needle breaks	Wrong needle size/bent needle	Use correct needle size; replace bent needle; don't pull fabric.

Service: 1-800-4-SINGER; www.singer.com