SAFETY INSTRUCTIONSExternal environmentalfactorsTemperatureThe ambient temperature, both heat and cold, affectsthe machine’s operational reliability. Temperaturevariations also have an impact as they produce anincreased risk of condensation forming in the ma-chine’s tanks.HeatNB! There is an increased risk of overheating in warmenvironments. Both the machine’s hydraulic systemand electronic components can be damaged.The maximum working temperature for hydraulic fluidis 90°C (194°F). Overheating results in deposits form-ing in the fluid, leading to increased wear, damagedseals and leakage. Overheated hydraulic fluid pro-vides poor lubrication, resulting in inferior perform-ance.To avoid overheating:• Keep the machine clean, in particular its cooler.• Ensure that there is good ventilation when workingindoors.• Radiant heat can cause local heating that dam-ages parts of the machine. Screen off vulnerablecomponents.• Additional cooling is required if there are highambient temperatures. Supply the machine withforced cooling using compressed air.To avoid damage to the machine:• Change hydraulic fluid and filters more frequently.• Check the machine’s seals to prevent dirt in thehydraulic system due to broken seals.• Rubber caterpillar tracks must not be exposed totemperatures of over 70°C (158°F). In hotter envi-ronments steel tracks have to be used.ColdDo not use maximum pump pressure if the hydraulicfluid is less than 10°C (50°F). Allow the machine towarm up slowly. Warm up the lower section by run-ning the caterpillar tracks, first slowly and then morequickly with the outriggers extended. Move the uppersection back and forth and operate all cylinders in thearm system without load. The machine is ready foruse when its temperature has risen to around 40°C(104°F).MoistureWhen working in damp environments the operatorshould ensure that electrical components, connectorsfor example, are not submerged in water.The machine must never be driven to such a depth inwater that it reaches up to the machine’s equipment.The equipment can be damaged and the machine canbe live, resulting in personal injuries.Dust and particlesDust and particles can block the machine’s cooler,cause overheating and increase wear on the ma-chine’s bearings and shafts. Clean and lubricate themachine regularly.The hydraulic system is extremely sensitive to con-taminants. Small particles can cause breakdowns andincrease wear in the components.There is a high risk of contamination in conjunctionwith servicing and repairs when the hydraulic systemis opened.Contamination of the hydraulic system can beprevented by:• Keeping the machine clean, particularly beforeservicing, repairs or changing tools.• Carrying out daily inspections.• Carrying out regular servicing.English - 15