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48M749 - Walter 48-M-749 Replacement Field Coil 120V

Packaging: 1 per each
$104.52/ea

Usually ships within 3-5 business days

SKU: 48M749 Categories: ,

OVERVIEW

Restore Precision Power with the Walter 48-M-749 Field Coil

The Walter 48-M-749 Field Coil is a critical OEM replacement component designed to restore the functionality of specific 120V Walter Surface Technologies power tools. As the stationary component of the universal motor (the stator), the field coil is responsible for generating the strong magnetic field required to spin the armature. Over time, heavy industrial use, overheating, or debris ingestion can cause the insulation on the copper windings to break down, leading to short circuits or open circuits. When this occurs, the tool may exhibit symptoms such as loss of power, excessive sparking at the brushes, or a complete failure to start. Installing a genuine Walter field coil ensures that the magnetic flux density matches the original engineering specifications, preserving the tool's torque and efficiency.

This replacement part is manufactured with high-quality copper wire and robust insulation materials capable of withstanding the thermal and mechanical stresses typical of metalworking environments. The laminations are precision-stamped to ensure a tight fit within the motor housing, which is essential for efficient heat dissipation and mechanical stability. By choosing the 48-M-749, you are maintaining the integrity of your Walter tool, ensuring it continues to operate safely and effectively. This component is typically compatible with Walter's heavy-duty grinder lines, such as the Big 6 or Super 5 series (verify specific model compatibility in your tool's manual before purchase).

Technical Considerations for Motor Repair

Replacing a field coil is a significant repair that can extend the life of a high-value tool. When replacing the field, it is also recommended to inspect the armature for signs of dragging or commutator damage, as a failed field can sometimes damage the rotating assembly. Additionally, always check the carbon brushes and bearings during this service to ensure a comprehensive restoration of the tool's performance.

Additional Information
Packaging Description:1 per each
Voltage:120V
Component Type:Field Coil
Compatible Brand:Walter Surface Technologies

INCLUDED

  • 1 x 120V Field Coil (Stator)
  • Installation wiring leads (pre-attached)

APPLICATIONS

  • Replacement of burnt or shorted field coils in Walter 120V grinders
  • Repairing tools with low power or excessive overheating issues
  • Restoring older Walter Big 6 or Super 5 grinders to operational status
  • General power tool motor maintenance and refurbishment

FAQ

This field coil is rated for 120V AC operation, standard for most North American handheld power tools.

Common signs include the motor humming but not turning, the tool running very hot, a burning smell, or a significant loss of power under load. You can also test resistance across the windings with a multimeter.

Yes, this is a genuine Walter Surface Technologies replacement part, ensuring the exact fit and performance specifications of the original.

No, it is specific to certain models, typically the larger series like the Big 6 or Super 5. Please check your tool's parts diagram or manual to confirm the part number 48-M-749.

It is highly recommended to inspect the armature, carbon brushes, and bearings. If the field coil burned out, it may have caused damage to the armature or was caused by worn bearings.

Field coil replacement requires disassembling the tool housing and handling electrical connections. If you are comfortable with tool repair, it can be done in the shop; otherwise, a qualified repair technician should perform the installation.

No, the field coil (stator) and armature (rotor) are sold separately. This SKU contains only the field coil assembly.

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