The Saudi summer is not weather; it is a load case. From June to September, ambient temperatures of 45–50°C remove the thermal margin every machine system was designed around, and the fleet that enters July unprepared donates its summer to the repair shop. The preparation window is April and May. Here is the campaign, distilled from every heat lesson in this blog.
1. Cooling Systems (the core of the campaign)
2. Air Conditioning (a production system in summer)
The full April AC campaign from our cabin AC guide: filters, condenser cleaning, charge by weight, clutch and electrical checks, plus a spare compressor, drier, and blower per machine family on the shelf.
3. Fluids and Viscosity
Review the high-ambient columns: 20W-50 engine oil where the OEM approves it, ISO VG 68 hydraulics per our lubricants guide, GL-5 85W-140 in final drives, and lithium-complex or calcium-sulfonate grease with real dropping points. Pull oil analysis samples now — summer amplifies every marginal condition the lab flags.
4. Batteries and Electrics
Summer, not winter, is battery execution season in the Kingdom. Conductance-test the fleet; retire the weak before they strand machines at remote sites. Top up maintainable batteries monthly through summer, verify charging voltages (over 14.4V hot is cooking), and clean and grease terminals.
5. Tires and Tracks
Heat is the tire killer's accomplice: verify cold pressures weekly (underinflation plus heat equals casing failure), inspect for cuts before they grow, and check rubber track tension — hot asphalt softens compounds, as our tracks guide details.
6. Operators and Operations
Machinery survives summer better when operations respect it: schedule heavy work for early hours where possible, enforce cool-down idling after hard cycles (turbochargers especially), train operators to watch gauges in the afternoon and report drift, and shade parked machines — the battery, electronics, and AC system all age slower out of direct sun.
7. The Pre-Summer Parts Order
Stock before June: coolant premix, belts and hoses per machine family, water pumps and thermostats for the fleet's top engines, AC spares, air filters (dust season overlaps), batteries, and hydraulic seals in high-temp materials. Every one of these items doubles in urgency exactly when everyone else is ordering it too.
HESP runs pre-summer campaigns with Saudi fleets every April — cooling and AC parts kits per machine family, delivered before the heat arrives, at program prices instead of July emergency prices. The checklist is free; send your fleet list and we will size the kit.
