1. Introduction
This manual provides essential information for the safe and efficient installation, operation, and maintenance of your Fasco D367 3.3" Double Shaft Motor. Please read these instructions carefully before attempting to install or operate the motor. Retain this manual for future reference.

Image 1.1: Fasco D367 3.3" Double Shaft Motor. This image displays the motor with its double shaft design, typically used in various fan and blower applications.
2. Safety Information
Always observe the following safety precautions to reduce the risk of injury or damage:
- Electrical Hazard: Ensure power is disconnected before installation, maintenance, or servicing. Only qualified personnel should perform electrical wiring.
- Moving Parts: Keep hands, clothing, and tools clear of rotating parts during operation.
- Proper Grounding: The motor must be properly grounded to prevent electrical shock.
- Ventilation: Ensure adequate ventilation around the motor to prevent overheating.
- Environmental Conditions: Do not expose the motor to excessive moisture, dust, or corrosive environments unless specifically rated for such conditions.
- Secure Mounting: Always ensure the motor is securely mounted to prevent vibration and potential detachment.
3. Setup and Installation
Follow these steps for proper installation:
- Unpacking: Carefully remove the motor from its packaging. Inspect for any shipping damage.
- Mounting: Mount the motor securely using appropriate fasteners. Ensure the mounting surface is stable and capable of supporting the motor's weight and operational forces. The double shaft design allows for flexibility in application.
- Electrical Connection:
- Verify that the power supply matches the motor's voltage (115 Volts) and frequency requirements.
- Connect the motor wiring according to local electrical codes and the wiring diagram provided with the motor (if applicable). Ensure all connections are tight and insulated.
- Properly ground the motor chassis.
- Shaft Connection: Attach the driven components (e.g., fan blades, pulleys) to the motor shafts. Ensure they are balanced and properly aligned to prevent excessive vibration and premature bearing wear.
- Pre-Operation Check: Before applying power, manually rotate the shafts to ensure free movement and no obstructions.
4. Operating Instructions
Once installed and all safety checks are complete, the motor is ready for operation.
- Power On: Apply power to the motor. It should start smoothly and reach its rated speed of 1550 RPM.
- Monitoring: During initial operation, monitor the motor for unusual noises, excessive vibration, or overheating. If any anomalies are detected, immediately disconnect power and investigate the cause.
- Continuous Operation: The Fasco D367 motor is designed for continuous duty within its specified ratings.
5. Maintenance
Regular maintenance ensures optimal performance and extends the motor's lifespan.
- Cleaning: Periodically clean the exterior of the motor to remove dust and debris, which can impede cooling. Ensure power is off before cleaning.
- Inspection: Regularly inspect the motor for signs of wear, loose connections, or damage to wiring. Check mounting bolts for tightness.
- Bearings: This motor typically features permanently lubricated bearings. No routine lubrication is required. If unusual bearing noise is detected, consult a qualified technician.
- Ventilation: Ensure that air inlets and outlets are clear and unobstructed.
6. Troubleshooting
Refer to the following table for common issues and their potential solutions.
| Problem | Possible Cause | Solution |
|---|---|---|
| Motor does not start | No power supply; Incorrect wiring; Overload protection tripped; Seized bearings | Check power source and circuit breaker; Verify wiring connections; Reset overload; Inspect bearings for free rotation |
| Motor runs hot | Insufficient ventilation; Overload; High ambient temperature; Incorrect voltage | Clear obstructions; Reduce load; Ensure proper operating environment; Verify correct voltage supply |
| Excessive noise or vibration | Loose mounting; Unbalanced load; Worn bearings; Misalignment | Tighten mounting bolts; Balance load; Replace bearings (if worn); Realign components |
| Motor hums but does not turn | Starting capacitor fault (if applicable); Mechanical obstruction; Low voltage | Consult qualified technician; Remove obstruction; Verify voltage supply |
If troubleshooting steps do not resolve the issue, contact a qualified service technician.
7. Specifications
Key technical specifications for the Fasco D367 motor:
- Brand: Fasco
- Model Number: D367
- Motor Type: 3.3" Double Shaft Motor
- Voltage: 115 Volts
- Speed: 1550 RPM
- Material: Copper
- Item Weight: 5.17 Pounds (approx. 2.34 kg)
- Package Dimensions: 18 x 4 x 4 inches (approx. 45.7 x 10.2 x 10.2 cm)
- UPC: 707022318501
8. Warranty and Support
For warranty information, please refer to the documentation provided at the time of purchase or contact Fasco directly. Specific warranty terms and conditions may vary.
For technical support or service inquiries, please contact your authorized Fasco dealer or visit the official Fasco website for contact details.
