Singer 491D User Manual

SERVICE MANUAL FOR SINGER 491D SEWING MACHINE
PARTS CHART FOR 491D200GA & 491D300GA
SEWING MACHINE
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Singer 491D Specifications

General

Type	Mechanical
Model	491D
Weight	6.5 kg
Operation	Manual
Built-in Needle Threader	Yes
Drop Feed	Yes
Free Arm	Yes
Buttonhole Styles	4-step
Presser Feet Included	All-purpose foot, Zipper foot, Buttonhole foot
Stitch Type	Straight, Zigzag

Summary

Singer 491D Sewing Machine Service Manual

Set Needle Bar at Correct Height

Procedure to set needle bar height.

Set Check Spring Height

Set Check Spring Tension

Set Presser Bar at Correct Height

Procedure to set the correct height of the presser bar.

Timing the Sewing Hook

Procedure to time the sewing hook relative to the needle.

Set Feed Dog at Correct Height

Procedure to set the correct height of the feed dog.

Remove the Sewing Hook

Instructions for removing the sewing hook assembly.

Replace the Sewing Hook

Instructions for installing a new sewing hook.

Remove and Replace the Hook Shaft

The Oil Pump

Remove and Replace the Upright Arm Shaft

Remove and Replace the Needle Bar

Remove and Replace the Presser Bar

Needle Thread Take-up

The Arm Shaft

Procedures for removing and replacing the arm shaft.