Emerson 750-37 AC Tach Half Wave Speed Control
Repair
Repair Price: $ 368.00
Purchase
CSL Part Number: 3487
Product Overview: An AC motor speed control module that regulates motor velocity using half-wave rectification and tachometer feedback for closed-loop speed stability. Commonly applied in paper processing and web-handling machinery, it provides adjustable speed control for AC motors with clutch and tachometer-driven feedback configurations.
Category: AC Motor Controls
Manufacturer: Emerson
Alternate Manufacturer Names: WER
Manufacturer Part Number: 750-37
Other Synonyms: WER
Common Failures
Common reported issues include difficulty with speed adjustment, where the device may run at full speed but shut off when attempting to decrease speed. Additionally, some units may show no response on the tachometer.
Repair Approach
When these issues are verified during evaluation, repairs typically involve replacing affected components along with low power transistors and electrolytic capacitors as appropriate. Component replacement is determined based on the findings from our technical review of each unit.
Testing & Quality
Repaired units are tested using motors to verify proper operation, including speed regulation and tachometer function. Testing confirms that reported issues have been addressed according to CSL repair standards.
Service and repair your broken Emerson part
We can repair your Emerson model 750-37 in our facility. Let our skilled technicians get your Emerson back in operation quickly.
Step 1 - Click the green 'Repair Now' button above to add the part and then complete the RMA.
Step 2 - The RMA form will be sent to you via email. Print the RMA form and put it in a box with the item(s) for repair.
Step 3 - Ship or mail the box to the address listed on the RMA.
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