How to Replace 3HP Vacuum Pump

Guide Number: SG00268 | Printer Friendly Version | View Safety Disclaimer | Need Help?

Time to Complete: 45 min

Skill Level 2

Moderate task, requires some mechanical/electrical experience.

This is a step by step guide on how to replace the Vacuum Pump on a Titan 4K machine.

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  • 10 mm socket or open end wrench
  • 5/8" Wrench
  • Adjustable Wrench
  • Loctite 567
  • 7 mm socket or open end wrench
  • 5/16" nut driver
  • 9/16" Wrench
  • Monkey Wrench or Pipe Wrench
  • 3/4" Wrench
  • 1/2" Wrench

Turn off the water, air and power at the source and machine.

Disconnect the water lines from the pump.

Unscrew the 4 bolts for the electrical junction box cover

Remove the wired connections and pull them through the cord connector.

Remove the 4 bolts securing the pump to the mount plate.

Remove the pump.

Strip the old pump: remove the manifold, discharge assembly, relief valve and fittings.

Attach the manifold, discharge assembly, relief valve, vacuum seal water and cord connector to the new pump.

Pass the bolts through the pump, rubber feet, and mount plate; attach and tighten a nut onto the bolt’s threaded end to secure the new pump to the machine.

Thread the wires through the cord connector to the electrical junction box and connect them to the pump.

Seal the electrical Junction box.

Attach the water lines to the pump.

Turn on the water and power at the source and machine.

Check for leaks.

Quick cycle the pump on and off to confirm a clockwise rotation of the motor.

The regulator should read 3 psi or 1.5 gallons per minute from vacuum pump discharge.

Confirm the vacuum relief valve is set correctly. See guide below.

3 HP Vacuum Relief Valve Service Guide

Confirm proper vacuum.