Harbor Freight Tools 3914 operating instructions ARM BED Parts List, Part Description Qty

Page 22
REV 07a, 10b

A - ARM BED PARTS LIST

Part

Description

Qty

1a

Arm Bed Assembly

1

2a

Tension Complete Subassembly

1

3a

Tension Adjustment Knob

1

4a

Thread Disc Rotation Stopper

1

5a

Thread Tension Spring

1

6a

Thread Release Disc

1

7a

Thread Tension Disc

2

8a

Tension Screw

1

9a

Take-up Spring

1

10a

Thread Tension Post Socket

1

11a

Set Screw

1

12a

Tension Release Pin

1

13a

Oil Packing Subassembly

1

14a

Oil Packing Cover

1

15a

Oil Wick

1

16a

Screw

1

17a

Thread Take-up Cover

1

18a

Take-up Lever Cover Screw

1

19a

Faceplate Asm

1

20a

Screw

8

21a

Gasket

1

22a

Rubber Plug

1

23a

Rubber Plug

1

24a

Thread Tension Screw

1

25a

Faceplate Thread Retaining Guide

1

Subassembly

 

 

26a

Faceplate Retaining Thread Guide

1

27a

Thread Tension Disc

2

28a

Thread Tension Spring

1

29a

Thread Tension Screw

1

Part

Description

Qty

30a

Rubber Plug Needle Draining Crank

1

Hole

 

 

31a

Three-hole Thread Eyelet

1

32a

Faceplate

1

33a

Faceplate Sealing Gasket

1

34a

Faceplate Thread Guide

1

35a

Thread Guide

1

36a

Thread Guide Bolt

2

37a

Rubber Plug

2

38a

Bed Slide Subassembly

1

39a

Slide Plate

1

40a

Slide Plate Spring

1

41a

Slide Plate Spring Screw

2

42a

Throat Plate

1

43a

Throat Plate Screw

2

44a

Bed Screw Stud

4

45a

Rubber Plug Thread Take-up Lever

2

Link Pin Hole

 

 

46a

Rubber Plug

1

47a

Brand Plate

1

48a

Brand Plate Rivet

2

49a

Main Shaft Bushing

1

50a

Connecting Rod

1

51a

Screw

2

DOL

Motor (Not Shown)

1

12-Ha

FESM-

Servo motor

 

(Slower replacement for stock motor, not

 

400a

shown, optional)

 

 

 

Note: When ordering parts for this component use the suffix “a”.

Note: Some parts are listed and shown for illustration purposes only, and are not available individually as replacement parts.

Page 22

For technical questions, please call 1-800-444-3353.

SKU 3914

Image 22
Contents For technical questions or replacement parts, please call Single needle industrial Sewing MachineRead all instructions before using this Tool SpecificationsSafety Warnings Precautions Save This ManualFor technical questions, please call Sewing Safety Precautions Grounded Tools Tools with Three Prong Plugs GroundingExtension Cords Table a Unpacking25’ 50’ 75’ 100’ 150’ Assembly Mounting the Motor Bobbin Winder Assembly Aligning the PulleysAdjusting the Belt Tension Mounting the Thread Stand SKU For technical questions, please callOperation Installing the Belt CoversMounting the Bobbin Winder Moderate to slow speeds for the first 15 minutes of use Attaching the NeedleBobbin Winder Operation OFF PositionWith the thread Threading the Top Thread DetailAdjusting the Bobbin Thread Tension Adjusting the Stitch LengthAdjusting the Needle Thread Tension Raising the Presser FootAdjusting the Feed Timing Setting the Presser Foot PressureAdjusting Feed Dog Height Adjusting Needle-to-hook Timing Adjusting the Presser Bar Height Adjusting the Height of the Knee LifterMaintenance Adjusting Sewing Speed with Pulleys sold separatelyMotor Wiring Diagram ARM BED Parts List Part Description QtyARM BED Assembly Drawing Main Shaft Parts List Main Shaft assembly Drawing Stitch Drive Parts List Stitch Drive Assembly Drawing Presser BAR Parts List Presser BAR Assembly Drawing Feed Control Parts List Feed Control Assembly Drawing Lubrication Parts List Lubrication Assembly Drawing Base Assembly Drawing and Parts List Accessories Parts List and Assembly Drawing Bobbin Winder & Thread Stand Unit Parts List Bobbin Winder & Thread Stand Unit Assembly Drawing Motor Parts List Motor Assembly Drawing Limited 90 DAY Warranty

3914 specifications

Harbor Freight Tools 3914 is a robust and versatile portable generator designed to meet the power needs of both professionals and DIY enthusiasts. Featuring a compact design with a durable frame, this generator is built to withstand tough job site conditions while providing reliable power wherever it is needed.

One of the standout features of the 3914 model is its powerful 212cc engine, which delivers a peak output of 3500 watts and a running output of 3000 watts. This allows users to power multiple devices simultaneously, making it suitable for everything from household appliances during power outages to tools on construction sites. The generator's 4-gallon fuel tank provides an impressive run time of around 11 hours at a 50% load, ensuring that users can rely on it for extended periods without frequent refueling.

In terms of technology, the Harbor Freight Tools 3914 incorporates a user-friendly control panel that includes two 120V AC outlets, a 12V DC outlet, and a circuit breaker for added safety. The 120V outlets are perfect for connecting various tools and devices, while the DC outlet can be used to charge batteries and other electronic devices. The generator also features an easy-to-read fuel gauge, which helps users monitor fuel levels and plan refueling accordingly.

Furthermore, the generator is equipped with a recoil start system, allowing for quick and straightforward operation. Additionally, its lightweight construction, combined with two carrying handles, ensures that it can be transported with ease, making it ideal for camping trips, outdoor events, or emergency use at home.

Safety is also a priority with the 3914 model. It comes with built-in low oil shutdown technology, which automatically turns off the engine when oil levels are low, preventing potential damage and prolonging the life of the generator. The generator's quiet operation is another significant advantage, ensuring that it can be used without causing excessive noise disturbances.

Overall, the Harbor Freight Tools 3914 portable generator stands out for its powerful performance, user-friendly features, and reliable safety mechanisms. Its combination of efficiency and portability makes it a valuable asset for anyone in need of reliable power on the go.