EasyManua.ls Logo

Singer class 251 User Manual

Singer class 251
26 pages
To Next Page IconTo Next Page
To Next Page IconTo Next Page
Page #1 background imageLoading...
Page #1 background image
SINGER
CLASS 251
Question and Answer IconNeed help?

Do you have a question about the Singer class 251 and is the answer not in the manual?

Singer class 251 Specifications

General IconGeneral
TypeMechanical
OperationManual
StitchStraight, Zigzag
Built-in Needle ThreaderNo
Drop FeedYes
Free ArmYes
DomesticYes
Stitch LengthAdjustable
Stitch WidthAdjustable up to 5mm
Buttonhole Styles4-step
Needle PositionsCenter, Left, Right
Presser Feet IncludedZipper foot, Buttonhole foot
Weight6.5 kg
Dimensions34.5 x 15.5 x 27 cm

Summary

Description of Class 251 Sewing Machines

Sewing Machine Speed

Machine Setup Procedures

Installation of Knee Lifter

Details on how to install the knee lifter mechanism.

Lubrication Guidelines

Rotating Hook Oil Flow Regulator Adjustment

Hints for Perfect Operation

Tips for ensuring optimal machine performance during sewing.

Needles and Thread

Thread Selection and Use

Guidance on selecting and using the correct thread type.

Relative Sizes of Needles and Thread

Setting the Needle Correctly

Instructions for correctly inserting and securing the needle.

Bobbin Removal Procedure

Bobbin Winding Procedure

Bobbin Case Threading

Bobbin Replacement Procedure

Sewing Preparation Steps

Thread Tension Adjustment

Perfect Stitch Appearance

Visual guide to achieving a perfect stitch with balanced tension.

Tight Needle Thread Tension

Describes issues and appearance of tight needle thread tension.

Loose Needle Thread Tension

Describes issues and appearance of loose needle thread tension.

Regulating Needle Thread Tension

Regulating Bobbin Thread Tension

Regulating Material Pressure

Setting Needle Bar Height

Needle Thread Take-Up Spring Adjustment

Setting Presser Bar Height

Sewing Hook Timing

Setting Sewing Hook Sidewise to Needle

Hook Assembly Adjustment Procedures

Hook Shaft Bushing and Hook Assembly

Details regarding the hook shaft bushing and its assembly.

Loosening Hook Shaft Bevel Gear

Procedure for loosening the hook shaft bevel gear.

Hook Assembly Movement

Moving Hook Assembly Away from Needle

Steps to move the hook assembly away from the needle.

Moving Hook Assembly Toward Needle

Steps to move the hook assembly toward the needle.

Feed Eccentric Stop Screws

Feed Eccentric Stop Screw

Information on the feed eccentric stop screw.

Feed Timing and Dog Height Setting

To Time the Feed

Procedure for correctly timing the sewing hook feed mechanism.

To Set the Feed Dog at the Correct Height

Instructions for setting the feed dog height for proper fabric feeding.

Sewing Hook Removal

Hook Shaft Removal and Replacement

Oil Pump Removal and Replacement

Needle Bar Removal and Replacement

Presser Bar Removal and Replacement

Needle Thread Take-Up Spring Adjustment

Presser Bar Height Setting

Upright Arm Shaft Removal and Replacement

Wick and Connecting Stud Replacement

Oil Wick Holder Removal

Oil Wick Holder Installation

Oil-Removing Wick Assembly Removal

Oil-Removing Wick Assembly Replacement

Arm Shaft Removal

Arm Shaft Replacement

Mechanic's Cautions

Importance of Singer Parts and Needles

Related product manuals