At RA Dalton, we deliver expert wastewater treatment servicing across the UK, ensuring systems remain compliant, efficient and environmentally sound.

In this recent service visit, our engineers were tasked with remedial work on a Klargester BC BioDisc unit that had developed mechanical wear and corrosion across key components. The service involved a full mechanical strip-down, replacement of critical parts and reassembly to restore optimal performance.

Upon arrival, our team ensured all necessary equipment was on site and began the multi-step refurbishment process without delay.

Step-by-Step Breakdown:

System Isolation and Initial Disassembly

• Power to the BioDisc was safely switched off.
• The lid was removed to access internal components.
• The motor gearbox and bearing caps were carefully dismantled.

Disc Removal and Structural Component Replacement

• Using a digger, the BioDisc was lifted from the tank and placed on the surface.
• All corroded radial arms and U-bolts were removed and replaced with new components.
• New radial arms and U-bolts were installed on the main shaft and disc tubes.
• Torque checks were performed to ensure all fittings were secure.

Reinstallation and Mechanical Testing

• The disc was lowered back into the tank using the digger.
• Half-back bearing and caps were refitted.
• Manual rotation confirmed smooth operation with no obstructions.
• The motor gearbox was reinstalled and the belt was correctly tensioned.
• Power was restored and the disc was observed turning correctly.

Final Checks and Site Restoration

• The lid was refitted and the site was cleaned and tidied.

This targeted mechanical service restored the Klargester BC BioDisc to full operational condition, ensuring reliable rotation, structural integrity and long-term performance. By replacing worn components and verifying correct installation, we helped prevent future breakdowns and maintain environmental compliance.

Benefits Delivered:

• ✅ Restored mechanical integrity of the BioDisc
• ✅ Improved rotational efficiency and flow consistency
• ✅ Reduced risk of component failure and emergency callouts
• ✅ Extended lifespan of key mechanical parts
• ✅ Full compliance with wastewater treatment standards

Regular servicing of sewage treatment systems like the Klargester BioDisc is essential to prevent costly failures and maintain optimal performance. If your site requires professional maintenance, mechanical refurbishment or system upgrades, contact RA Dalton today to speak with our experienced team.