The Tweco 36470 Switch Kit is a specialized replacement component engineered specifically for the Tweco Spray Master series of MIG welding guns. Manufactured by ESAB under the Tweco brand, this switch assembly is the primary interface between the operator and the welding power source, responsible for closing the contactor circuit to initiate the arc and engage the wire feeder. As a genuine OEM part, it guarantees precise dimensional fitment within the handle casing of Spray Master models, including the MS250, MS350, and MS450 configurations.
The assembly features a high-durability mechanical switch designed to withstand the repetitive cycling inherent in industrial welding environments. The internal contact points are constructed to resist oxidation and arcing, ensuring a clean signal is sent to the feeder relay every time the trigger is depressed. The kit is designed to replace worn or damaged switches that may exhibit high resistance, intermittent continuity, or mechanical failure (sticking). Maintaining the integrity of the trigger switch is vital for weld quality, as signal interruptions can cause arc stuttering or wire burn-back.
Installation of the 36470 kit involves accessing the handle assembly of the MIG gun. The component is designed with standard connection points compatible with the control lead configuration of the Spray Master series. By utilizing the authentic 36470 part, maintenance personnel ensure that the ergonomic profile of the gun handle is preserved, as aftermarket switches may not align correctly with the external trigger lever. This part is an essential stock item for MRO inventories supporting fabrication shops utilizing Tweco air-cooled MIG platforms.
Key Technical Specifications:
| Additional Information |
|---|
| Packaging Description:pack of 1 |
| ----- new values below ---- |
| Compatible Series:Spray Master, Eliminator |
| Component Type:Trigger Switch Assembly |
| Part Number:36470 |
| Installation Type:Handle Mount |
| Packaging Description:1 Per Ea |
| Brand:Tweco |
