Preventive Maintenance FAQ

A structured maintenance program—covering filtration, pumps, instrumentation, chemical handling, tanks, safety systems, and compliance— ensures reliability and helps extend equipment life and maintain regulatory compliance.

PRAB provides detailed predictive maintenance, service documentation, operator training, and 24/7 technical support, ensuring our systems operate at peak efficiency for decades.

Here’s a summary of our predictive maintenance considerations:

1. Preventive Maintenance

• Scheduled Inspections: Create and adhere to a preventive maintenance schedule (daily, weekly, monthly, yearly).
• Recommendation: Develop a checklist that includes filter inspection, pump seals, gasket condition, and tank integrity. Use OEM guidelines to set inspection intervals.

2. Filtration System Care

• Filter Media Replacement: Paper bed filters, cartridge filters, and membranes clog over time.
• Recommendation: Monitor differential pressure and replace media when pressure exceeds OEM-recommended limits (often 15–20 psi). Keep spare media stocked for unplanned replacements.
• Membrane Cleaning (UF/RO): Fouling reduces efficiency.
• Recommendation: Perform clean-in-place (CIP) with appropriate chemical cleaners (alkaline for organics, acid for scaling) on a quarterly or as-needed basis.

3. Pump and Motor Maintenance

• Lubrication & Bearings: Pumps and mixers operate continuously in harsh environments.
• Recommendation: Grease bearings per the manufacturer’s schedule; use vibration analysis or thermal imaging to catch early failures.
• Seal Inspections: Mechanical seals are common failure points.
• Recommendation: Inspect for leakage weekly and replace seals immediately to avoid contamination.

4. Instrumentation & Control Systems

• Calibration: pH probes, flow meters, and turbidity sensors drift over time.
• Recommendation: Calibrate pH sensors monthly (or more often if in continuous use) using standard buffer solutions. Validate flow meters quarterly.
• Control Panel Upkeep: Check PLCs and HMIs for software updates and alarm functionality.
• Recommendation: Back up control logic quarterly and test alarms monthly.

5. Chemical Management

• Storage & Feed Systems: Improper chemical handling leads to corrosion and dosing issues.
• Recommendation: Store neutralization chemicals in double-containment tanks, inspect feed pumps weekly, and flush dosing lines monthly to prevent crystallization.
• Spill Containment:
  Recommendation: Verify containment systems quarterly and train staff in spill response.

6. Tank & Piping Systems

• Scaling and Fouling: Mineral buildup reduces flow and efficiency.
• Recommendation: Inspect tanks yearly and hydroblast or descale as needed. For piping, flush quarterly with clean water.
• Corrosion Monitoring:
  Recommendation: Perform annual ultrasonic thickness testing on steel tanks/pipes. Apply protective coatings as needed.

7. Evaporators & Heat Exchangers

• Scaling Control: Heat-transfer efficiency declines with scaling.
• Recommendation: Use water softening pretreatment and descale yearly with acid solutions approved by OEM.
• Vacuum System Maintenance (if applicable):
  Recommendation: Inspect vacuum pumps monthly and change oil as recommended by the manufacturer.

8. Safety Systems

• Emergency Shutoff & Interlocks: Safety devices must function reliably.
• Recommendation: Test shutoff valves and interlocks monthly. Train operators are quarterly on emergency protocols.
• Ventilation & Gas Monitoring:
  Recommendation: Calibrate LEL and toxic gas monitors quarterly. Inspect ventilation systems semi-annually.

9. Sludge & Waste Handling

• Dewatering Equipment (screw press, filter press): Overloaded or clogged equipment reduces throughput.
• Recommendation: Inspect cloths/screens weekly, clean spray nozzles monthly, and rebuild hydraulic components as scheduled.
• Waste Disposal Records:
  Recommendation: Audit disposal manifests quarterly for compliance with environmental regulations.

10. Documentation & Compliance

• Recordkeeping: Regulatory compliance often requires proof of maintenance.
• Recommendation: Maintain a digital maintenance log (date, action, technician, notes). Use CMMS (computerized maintenance management system) for traceability.
• Operator Training:
  Recommendation: Train staff annually on system operation, troubleshooting, and regulatory updates.

PRAB Maintenance & Support

• Technical Brief: Avoid disruptions with predictive maintenance

Most conveyor equipment in the market is designed for shorter service cycles, often 10–15 years.

PRAB metal scrap conveyors consistently deliver double the lifespan while handling the toughest materials.

• Some of the options include Steel Belt Conveyors, Oscillating Conveyors, Pivot Belt Conveyors, Drag Chain Conveyors, Magnetic Conveyors, and Roller Bucket Conveyors.
• Designed for abrasive, hot, and coolant-heavy scrap from CNC machining, stamping, and foundry operations.
• Built with long-life wear components and engineered for uptime.
• Backed by U.S. engineering, testing, and service support.

👉 Learn more: PRAB Conveyors

It’s best to select a Briquetter model based on the profile of your metal alloys and your manufacturing process.

PRAB engineers will size the system using your mass flow, chip geometry, metal alloy, inlet moisture, and target puck size—then confirm with lab data.

→ Next Step: Request a FREE Briquetting lab test