| Heavily contaminated and damaged blower
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End housing damaged by rotor overheating
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| Exhaust gas contamination
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| Centre housing milled to correct rotor clearance
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Housing restored by flycutting
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| Gear end bearings replaced
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| New blower phasing gears installed
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Rotors hand lapped. Housing linished
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| Blower final assembly
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Blower completed. Clearances rechecked
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