SmartROC D65 Tier 4 Final 12 Compressor and air system
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12 Compressor and air system
12.1 Safety
WARNING
Serious injury
High system pressures and temperatures
u Can cause personal injury
u Never perform maintenance work while the drill rig is operating
u Make sure that the hydraulic, water and air systems are depressurised and that the
electrical system is de-energised before starting work on the rig.
u The use of incorrect or used oil, or mixing oils, may involve a risk of fire or explosion in
the compressor system.
u Risk of fire if the intervals for changing compressor oil are not observed
The compressor may emit pressure up to 35 bar. The compressor oil must cool down be-
fore work on the compressor is started. The oil can reach temperatures of 130°C during
operation. When replacing air hoses, use only Atlas Copco original hoses, or consult Atlas
Copco. In the event of a suspected leakage you must absolutely not use your hands to de-
tect/search for the leakage. Such a procedure could lead to immediate fatality.
Hoses must be considered as consumable items. For this reason, all hoses between com-
pressor and pressure tank must be replaced at a maximum interval of 5 years.
12.2 Compressor description
The rig is equipped with a two-stage screw compressor which is driven by the diesel en-
gine. The compressed air from the compressor flows to an air receiver which also functions
as an oil separator. The majority of the oil is removed in the air receiver by means of centri-
fugal force. The remainder is separated in an oil separator element in the air receiver. The
separated oil is collected in the lower part of the air receiver, which functions as an oil tank.
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