Job card
HAMI-SULEP-EME
Machine class
Haul Truck
Method
Surface Mining
Site area
Lephalale, Waterberg, Limpopo
Emergency 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. Breakdown-driven intent. A cab over temperature limit stops production, so response time and first-visit fix rate are the only metrics that matter.
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
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