Ultra-Air Documents
Ultra-Air® Model 735 – Documentation & Support
Thank you for your purchase of the Ultra-Air Model 735 Aerator. Below you will find all official documentation in one place — complete installation instructions, operation guidelines, maintenance recommendations, and the full 3-Year Pro-Rated Limited Warranty.
Installation Instructions
Click here to download a full PDF Copy
The Ultra-Air ships mostly pre-assembled for your convenience. Please complete these steps before installing:
- Remove the cardboard end panels from both ends of the motor assembly.
- Lift the motor assembly and shaft out of the shipping box by inserting your fingers through the openings in the cardboard cradles. Caution: Do not lift the unit by the shaft.
- Remove the motor and shaft assembly from the cardboard cradles.
- Place the motor assembly on a workbench or sturdy surface with the handle facing down and the shaft pointing up.
- Using a 5/32" Allen wrench, loosen the top two set screws on the brass coupling.
- Slide the brass coupling and shaft assembly onto the motor shaft. Push firmly until you hear a distinct click.
- Hand-tighten all four set screws on the brass coupling securely.
- Remove the foam ball and rubber bands from the aspirator end of the shaft.
- Grasp the motor assembly by the brackets first, then the handle. Caution: Never lift, carry, or support the unit by the shaft. Avoid twisting or torquing the shaft.
- Using the built-in handle, carefully lower the entire assembly into the tank until the upper brackets rest solidly on the riser.
- With power turned off, plug the motor into the outlet.
- Turn the power back on.
- Replace the cover over the motor assembly.
Operation
The Ultra-Air Model 735 is designed for continuous operation. While some systems may use a timer, we recommend running the unit continuously for best overall life and performance.
Important: The motor does not have built-in thermal or overload protection. It must be installed on a control panel containing a 5–7 amp breaker. Failure to use a compatible control panel will void the warranty.
Maintenance Guide
Proper maintenance is essential to prevent premature failure and keep your warranty valid. Most issues are caused by debris, high water levels, or excessive vibration — all of which are excluded from coverage.
Every 2–3 months (or more often if needed):
- Clean the shaft — Remove any debris (toilet paper, hair, wipes, etc.) wrapped around the stainless steel shaft.
- Inspect the aspirator tip and suds restrictor disk — Ensure they are present and undamaged.
- Monitor water levels — Never allow water to reach the motor.
- Check for vibration — Shut the unit off immediately if strong vibration occurs.
Handling Safety: Always turn power off before removal. Lift only by the brackets and handle — never by the shaft.
Quick Troubleshooting Table
| Issue | Action |
|---|---|
| Debris on shaft | Clean immediately |
| Excessive vibration | Shut off and correct cause before restarting |
| High water level | Lower water and monitor |
| Missing/damaged parts | Replace before operating |
| Motor flooded | Do not run — contact support |
3-Year Pro-Rated Limited Warranty
Click here to download a full PDF Copy
The complete aerator unit is warranted against defects in material and workmanship for 1 year from the date of purchase. The electric motor is additionally covered for 3 years on a pro-rated basis (after Year 1).
Replacement Motor Rule: If a replacement motor is purchased at the pro-rated price during the pro-rated period, the new motor receives full 1-year warranty coverage from its purchase date. After that year, any remaining coverage reverts to the original purchase terms.
Full warranty details, exclusions, claims procedure, and limitations (including high water events, vibration, and customer maintenance responsibilities) are covered in the official policy.