Installation and Alignment VHS motor Process

1. Safety and Preparation

  • Lockout/Tagout: Disconnect power to prevent accidental startup.

  • Inspect Area: Clean motor feet and baseplate. Check coupling for wear and replace if needed.

  • Check for Soft Foot: Use shims to ensure all motor feet are level and make solid contact with the base.

  • Inspect Shafts: Use a dial indicator to check that shafts are straight.

2. Well Conditions Check

  • Ensure the well is deep enough, straight, and that there is enough clearance between the casing and the pump for proper installation.

3. Rough Alignment

  • Use a Straightedge: Place a straightedge across the motor and pump shafts to visually align them. This step speeds up the fine-tuning process later.

4. Motor and Pump Alignment

  • Check Alignment: Use a feeler gauge or taper gauge to verify the alignment of the motor and pump shafts, even when disconnected.

5. Fine Alignment

  • Set Up Tools: Follow the Delotek’s instructions to set up dial indicators or laser alignment tools.

  • Mark the Coupling: Mark the coupling to rotate both shafts together for accurate readings.

  • Zero the Indicator: Set the indicator to zero at a reference point (e.g., top).

  • Rotate and Measure: Slowly rotate both shafts to a specific angle (e.g., 180 degrees), noting the readings. Repeat and adjust based on measurements.

  • Adjust Motor Position: Use shims for vertical adjustments and jacking bolts or tapping for horizontal adjustments until alignment is achieved.

6. Install the Motor

  • Mount the Motor: Install the motor on the discharge head or base plate according to the Delotek’s instructions.

  • Check Motor Bolts: Tighten motor bolts in a cross pattern to prevent shifting.

7. Inspect the Shaft

  • Check Shaft Condition: Ensure the shaft is straight and free of damage before installation.

8. Impeller Adjustment

  • Free the Impellers: Turn the head shaft to release the impellers from the pump bowls. They should move easily when freed.

  • Adjust Impeller Height: Raise the pump rotor until the impellers just touch the top of the pump bowls. Mark this height.

  • Set the Correct Operating Height: Lower the rotor to the desired operating height between the two marks. Use the adjustment nut to set the final height.

  • Secure the Impellers: Tighten the set screw or locking pin to keep the impellers in place once they’re properly adjusted.

9. Final Checks

  • Check Rotation Direction: Ensure the fan rotates in the direction indicated by the arrow on the fan cover. If incorrect, swap any two of the three power wires.

  • Lubricate Bearings: Apply the correct amount of lubricant to the bearing housings.

  • Install Remaining Parts: Install any other necessary components, like lubrication lines and fittings.

10. Test Run the Pump

  • Run the Pump: Test the pump without coupling it to the motor to ensure smooth and quiet operation. If everything runs well, connect the drive shaft. If issues arise, troubleshoot accordingly.

11. Final Tightening and Recheck

  • Tighten All Bolts: Ensure motor bolts are tightened in a cross pattern.

  • Recheck Alignment: Take final alignment readings after tightening to confirm everything is in place.