Operational Maintenance Schedule
Routine service intervals recommended for clubs with 30+ operating hours weekly per court.
Weekly Inspection
- Surface Redistribution: Longitudinal triangular brush sweeping to redistribute silica sand from perimeter back to high-traffic baseline zones.
- Debris Clearing: Remove leaves, organic silt, and foreign matter from court edges to prevent drainage blockage.
- Net Hardware: Check center strap height (strictly 88cm at center, 92cm at posts) and tensioning crank ratchets.
Monthly Protocol
- Glass Clamp Checking: Inspect nylon bushings and EPDM gaskets for dry rot, shrinkage, or glass-to-steel misalignment.
- Anchor Bolt Torque: Test M16 foundation bolts with a calibrated torque wrench (typically 80–95 Nm).
- Mesh Weld Inspection: Check vibration-sensitive weld junctions near door openings for micro-fracturing.
Annual Overhaul
- Turf De-Compaction: Mechanical aerator sweeping to lift compacted sand, restore fiber bounce, and filter fine dust.
- Optical Cleaning: Wash exterior and interior glass faces with demineralized water and neutral surfactant.
- Electrical Continuity: Check grounding straps on floodlight columns to prevent static shock or lightning risks.
Glass Fastener Torque & Micro-Fissure Prevention
The engineering physics behind sudden tempered glass spontaneous shattering.
Tempered glass holds immense internal compressive stresses. When fixing bolts are over-tightened, thermal expansion during hot summer days creates localized shear forces exceeding the yield limit, causing catastrophic spontaneous crystallization (shatter).
Conversely, loose bolts allow the glass pane to oscillate when struck by players, hammering against the steel frame rebate. The optimal torque for M10/M12 stainless glass fixing screws is strictly 20 to 25 Nm, cushioned by fresh EPDM washer assemblies.
Failure Indicator Checklist
Conduct immediate maintenance if any of the following symptoms appear on your enclosures:
- Audible clicking or squeaking when a ball strikes upper glass panes (indicates worn rubber gasket).
- Perimeter puddling taking more than 30 minutes to drain after heavy rain (indicates clogged sub-base porous channels).
- Visible white crystalline streaks running down steel columns (signs of zinc sacrificial corrosion needing immediate sealant).
- Compacted shiny surface areas at the baseline "T" zone (indicates severe fiber flattening requiring aggressive cross-brushing).