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Kidney Loop Filtration: A Practical Guide for UK Hydraulics

Kidney Loop Filtration: A Practical Guide for UK Hydraulics

A maintenance engineer draws an oil sample from a 200-litre hydraulic power unit after another bout of erratic servo-valve behaviour. The laboratory result returns ISO 22/20/17, well above the 18/16/13 cleanliness target expected downstream of precision valves. The...
Hybrid Power Solutions for Industrial and Mobile Hydraulics

Hybrid Power Solutions for Industrial and Mobile Hydraulics

A hydraulic power pack can be correctly rated on paper and still waste energy every time the machine pauses. A fixed-speed motor keeps turning, a pump keeps producing flow, and the relief valve converts surplus hydraulic power into heat while the cylinder waits for...
What Causes Pump Cavitation: Physics, Symptoms

What Causes Pump Cavitation: Physics, Symptoms

A pump that suddenly sounds like it's processing gravel usually gets blamed for being worn out. The operator may notice heavier vibration, a fluctuating pressure gauge or a loss of flow, then find that a recently replaced pump has developed the same fault. In...
What Is Preventive Maintenance and Why It Matters

What Is Preventive Maintenance and Why It Matters

Preventive maintenance is a planned, scheduled approach to inspecting, servicing and replacing equipment components before they fail, designed to reduce unplanned downtime and extend asset life. The National Audit Office identified a minimum UK government estate...
Pulsation Dampening in Hydraulics: A Practical Guide

Pulsation Dampening in Hydraulics: A Practical Guide

The operator feels it before the fault code appears. A telehandler's steering wheel starts to buzz as engine speed rises, the hydraulic hoses chatter against their clamps, and the pressure gauge needle refuses to settle. On a factory floor, a press may bang on...
Sustainability Practices for Hydraulic Systems That Work

Sustainability Practices for Hydraulic Systems That Work

A maintenance engineer arrives at a Yorkshire plant and finds a hydraulic power pack running hot, a pump shaft seal weeping, and a system using roughly 30 litres of ISO VG 46 fluid every quarter. Production still runs, so the fault has been treated as routine...