Changing the Thread Take-up Spring Stroke and Pressure

1.Loosen Set Screw (2).

2.To increase the stroke, turn the Tension Knob Screw (3) clockwise (A).

3.To decrease the stroke, turn the Tension Knob Screw (3) counterclockwise (B).

4.Loosen Set Screw (2) and pull out the Tension Arm (5).

5.Loosen Set Screw (4) and remove the Tension Knob Screw (3).

6.Turn the Tension Knob Screw (3) clockwise (A) to increase pressure; or turn counterclockwise (B) to decrease pressure.

7.Replace Tension Knob Screw (3), tighten Set Screw (4), and replace the assembly.

Setting the Hand Lifter

1.To stop the machine with its Presser Foot up, turn the Hand Lifter (1) up (A).

The Presser Foot will go up about 1/4 inch and stop.

2.To set the Presser Foot to its original position, turn the Hand Lifter (1) down (B).

Using the Knee Lifter, you can get the standard Presser Foot lift of about 1/2 inch.

Setting the Presser Foot Pressure

1.Loosen Nut (2), and turn the Presser Spring Regulator (1) clockwise (A) to increase Presser Foot pressure.

2.To decrease Presser Foot pressure, turn the Presser Spring Regulator (1) counterclockwise.

3.After adjustment, tighten Nut (2).

Adjusting the Feed Timing

1.Loosen Set Screws (2) and (3) on the Feed Eccentric Cam (1) and properly position the Eccentric Cam. Retighten the Set Screws.

2.To advance the feed timing in order to prevent uneven material feed, move the Feed Eccentric Cam up (clockwise).

SKU 03914

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Harbor Freight Tools 03914 manual Changing the Thread Take-up Spring Stroke and Pressure, Setting the Hand Lifter

03914 specifications

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