Singer HA-1 User Manual

-10-
Fabric Selector: The height of
the feed dog may be regulated
according to the thickness or
other characteristics of the ma-
terial being sewn, by proper
setting of the drop feed knob.
1– When sewing normal to thick materials, turn the knob to
the “NORM” position.
2– When sewing thin materials, such as silk, which require a
gentler feeding motion, turn the knob to “SILK.”
3– When a situation arises when you want to move the ma-
terial by hand, such as in darning or embroidery, turn the
knob to the “DARN” or “EMBR” position.
OTHER FEATURES
PRESSURE CONTROL
The pressure control (Fig. 4, pg. 5) controls the amount of
pressure that the presser foot applies to the material. Differ-
ent HA-1s use two versions of the pressure control, but you
can regulate it by screwing it up and down or using the snap
release, to find the pressure that provides the best feeding
action.
PRESSER FEET & ATTACHMENTS
Your HA-1 is equipped with a standard low shank mounting
system. With this arrangement, it is easy to find almost any
type of presser foot or attachment for your sewing needs.
Fig. 11

Singer HA-1 Specifications

General

Brand	Singer
Model	HA-1
Category	Sewing Machine
Language	English

Summary

Replacing the Needle

Needle Replacement Procedure

Instructions for removing the old needle and inserting a new one, ensuring correct orientation.

Bobbin Case Operations

Important Needle Position Reminder

Important reminder to always keep the needle above the machine surface during operations.

Removing the Bobbin Case

Step-by-step guide on how to safely remove the bobbin case from the machine.

Inserting the Bobbin Case

Instructions for correctly reinserting the bobbin case, noting latch grip and notch alignment.

Winding the Bobbin

Bobbin Winding Procedure

Detailed steps for winding a bobbin, including using the stop motion knob and thread path.

Threading the Bobbin Case

Bobbin Case Threading Setup

Instructions for holding the bobbin case and positioning the thread for threading.

Bobbin Case Threading Process

Guides threading the bobbin case, ensuring the thread snaps into the delivery eye correctly.

Upper Threading Procedure

Step 1: Place Thread Spool

Step 1: Placing the spool of thread on the spool pin.

Step 2: Thread Guide

Step 2: Leading the thread through the thread guide.

Step 3: Thread Tension Disks

Step 3: Running the thread through the tension disks.

Step 4: Guide Bar and Check Spring

Step 4: Threading over the guide bar and through the check spring.

Step 5: Take-Up Lever

Step 5: Bringing the thread through the take-up lever.

Step 6: Thread Guides

Step 6: Running the thread through the guides.

Step 7: Thread the Needle

Preparing for Sewing

Bringing Up Bobbin Thread

Bobbin Thread Emergence

Final Thread Positioning

Starting and Stopping Sewing

Initiating Sewing

Removing Sewn Work

Stitch Length Regulation

Stitch Length Adjustment Guide

Setting Stitch Length

Oiling the Sewing Machine

Lubrication Points and Procedure

Oil Type Recommendation