Job card
HAMI-SULEP-MAI
Machine class
Haul Truck
Method
Surface Mining
Site area
Lephalale, Waterberg, Limpopo
Preventative Surface Mining Haul Truck Fleet Maintenance in Lephalale
Haul Trucks working surface mining around Lephalale carry a specific thermal problem: continuous 24-hour haul cycles on ramp gradients with constant cab door cycling. Surface mining operations run wide, dispersed fleets across multiple pits, which makes mobile in-field HVAC capability more valuable than workshop-only capacity. Planned intent. Work is scheduled into existing service bays and shutdown windows so HVAC never becomes the reason a machine is standing.
What the fleet maintenance covers
Asset register and per-unit HVAC history
Interval-based inspection aligned to service bays
Refrigerant handling and logging
Monthly fleet condition and risk reporting
Failure modes we expect on this machine
- Condenser core blinded by haul road fines, causing high-side pressure spikes
- Chafed or fatigue-cracked discharge hoses at the chassis-to-cab crossover
- Failed cab pressuriser filters pulling dust across the evaporator
- Clutch-cycle compressor bearing collapse from belt misalignment
Heat gap analysis · Lephalale
41°C
Ambient in pit
20°C delta to hold
21°C
Required cab temp
A system that has lost even 15% of its condenser capacity cannot bridge a 20°C gap. That is why fouled cores and marginal charge levels present as complete cooling failure on a Lephalale bench, and why we verify every repair with a measured delta-T under load rather than a gauge reading at idle.
Lephalale logistics
Our workshop and parts store is in Lephalale, so common compressors, driers, hoses and blower assemblies are held locally. In-pit units are dispatched from town, and most breakdowns are attended the same shift.
Large-scale open-cast coal, overburden stripping fleets, dragline support plant, power station coal handling and the contractor fleets that service them.
Questions about this work in Lephalale
Other haul trucks work in Lephalale
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