Product Description
277004 Rear Needle Guard for Industrial Overlock Machines
The 277004 Rear Needle Guard is a replacement machine part designed for compatible Pegasus EX5200 and EX3200 series industrial overlock sewing machines. It works as part of the needle protection and positioning mechanism inside the sewing area.
This is a suitable replacement when the existing rear needle guard is worn, damaged, bent, or needs replacement during machine maintenance. The pack contains 1 piece.
Please note that 277004 is identified as a rear needle guard, not a looper. Pegasus parts references separately list 277015 as a lower looper and 277010 as an upper looper.
What Does the 277004 Needle Guard Do?
The rear needle guard is positioned around the needle area of the overlock machine. Its function is to help maintain the correct relationship between the needle and the internal stitching mechanism during machine operation.
A correctly fitted needle guard can help maintain proper needle positioning and reduce the risk of unwanted contact between moving components. It is an important small component when servicing the needle-drive and gauge area of an industrial overlock machine.
Machine Compatibility
The 277004 part is documented for Pegasus EX5200 series machines and appears in the EX3200 series gauge parts information as well.
The supplied compatibility information also identifies this replacement for Jack 798/C4 industrial overlock machines. Because model variants and gauge configurations can differ, verify your original part number and physical part before ordering.
| Machine Type | Compatible |
|---|---|
| Pegasus EX5200 Series | Yes |
| Pegasus EX3200 Series | Yes |
| Jack 798 / C4 Overlock | Yes, based on supplied compatibility |
| Single Needle Lock Stitch Machine | No |
| TA1 Umbrella Sewing Machine | No |
Best Use
This replacement part is intended for industrial overlock and serger machine maintenance rather than for a particular fabric type.
It can be relevant for tailoring units, garment production, alteration shops, and sewing-machine technicians maintaining compatible industrial overlock equipment.
Because the part works within the machine mechanism, fabric selection is determined by the sewing machine, needle, thread, and gauge configuration rather than by the needle guard itself.
When Should You Replace the Needle Guard?
Consider checking the rear needle guard if you notice unusual needle movement, incorrect needle positioning, visible damage around the guard, or contact between the needle and machine components.
A damaged or incorrectly positioned guard should be inspected before continuing production, particularly when servicing an industrial overlock machine at operating speed.
Replacement and Installation
- Switch off the sewing machine and disconnect the power.
- Remove the necessary covers or components to access the needle guard area.
- Compare the old part with the replacement before installation.
- Remove the existing rear needle guard carefully.
- Install the 277004 replacement in the same position.
- Check needle and guard clearance by manually turning the machine.
- Test the machine at low speed before returning to normal production.
Why Buy the Correct Part Number?
Small industrial sewing-machine components can look similar while serving different functions. Using the correct part number helps avoid ordering a looper when the required component is actually a needle guard.
For this reason, 277004 should be identified as a Rear Needle Guard. Available Pegasus parts references distinguish it from the machine’s upper and lower loopers.
Please verify the shape and measurements of your existing part before purchasing.
3. MACHINE COMPATIBILITY TABLE
| Machine Type | Compatible |
|---|---|
| Pegasus EX5200 Series | Yes |
| Pegasus EX3200 Series | Yes |
| Jack 798 / C4 Industrial Overlock | Yes, based on supplied compatibility |
| Single Needle Lock Stitch Machine | No |
| TA1 Umbrella Sewing Machine | No |
4. BEST FABRIC TYPES
This is a machine mechanism component, so it does not have a specific fabric rating.
- Cotton
- Polyester
- Knit fabrics
- Garment fabrics
- Medium-weight textile materials
The actual fabric capability depends on the machine model, gauge, needle, thread, and other machine settings.
5. HOW TO USE
The 277004 is a replacement component rather than a sewing attachment.
- Turn off and unplug the machine.
- Access the rear needle-guard area.
- Compare the existing component with the replacement.
- Remove the damaged or worn guard.
- Fit the 277004 in its correct mounting position.
- Rotate the machine manually to confirm clearance.
- Run a slow-speed test before production.
6. FREQUENTLY ASKED QUESTIONS
Is 277004 an upper or lower looper?
No. 277004 is identified as a rear needle guard. Pegasus parts information lists 277015 as a lower looper and 277010 as an upper looper, so these parts should not be treated as interchangeable.
What machines use 277004?
277004 is documented for Pegasus EX5200 and EX3200 series machines. Parts references show the number in the gauge parts information and identify it as the rear needle guard. The supplied product compatibility also includes Jack 798/C4 overlock machines.
Is 277004 suitable for an industrial overlock machine?
Yes, when the machine uses this specific part number. It is a needle-guard component used in the needle area of compatible industrial overlock machines. Always compare your original part number and physical shape before replacement.
Can I use 277004 instead of a looper?
No. A needle guard and a looper perform different functions. If your machine requires a looper, identify the correct looper part number from the machine’s parts list rather than substituting 277004.
Does 277004 fit every Pegasus overlock machine?
No. Compatibility should be checked by machine series and gauge configuration. The available parts information specifically associates 277004 with relevant EX-series configurations rather than every Pegasus overlock model.
