Critical where air touches product, packaging, or breathing apparatus.
1
Oil vapour carryover
highCheckUse an oil-indicator test tube at the point of use; check separator and coalescing filter condition.
FixService the separator and coalescing filter; fit an activated carbon tower where odour-free air is required.
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2
Contaminated intake air
highCheckLook at what is near the intake: exhaust, solvents, paint booth, drains.
FixRelocate or duct the intake to clean outside air away from any exhaust source.
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3
Microbial growth in a wet receiver or line
medCheckDrain the receiver and inspect for slime or foul-smelling water.
FixClean and dry the receiver, fix the drain, and restore dryer performance so the system runs dry.
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4
Overheated oil (burnt smell)
highCheckCheck discharge temperature history and oil colour.
FixCorrect the cooling fault and change the oil; inspect the airend if the oil is charred.
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Safety
Lockout/tagout before opening enclosures. Verify zero energy. Bleed system pressure before opening any pneumatic connection.