GEA Grasso 55HP
GEA Grasso GEA Grasso 55HP — Single-stage reciprocating compressor for CO2 cascade freezing and NH3 heat pump applications.
Components & Design
Component data being added…
Technical Data
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Common failures & inspection points
Valve inspection and replacement (suction and discharge valves): check for wear, breakage, leakage, and correct seating; replace at manufacturer-specified intervals
Piston rings and cylinder liner inspection: measure wear with go/no-go gauges; check for scoring, blow-by, or excessive clearance
Crankshaft and connecting rod bearing clearances: measure journal and bearing wear; check oil film pressure and replace bearings per service intervals
Lubrication system: verify oil level, oil pressure, oil quality and viscosity, oil separator function, and check for refrigerant dilution in crankcase oil
Shaft seal (mechanical seal) inspection: check for refrigerant leakage, wear of seal faces, and correct spring tension
Safety devices: test high/low pressure cut-outs, oil pressure differential switch, discharge temperature limiter, and crankcase heater function
Cylinder head and gasket condition: inspect for hot spots, leakage, and corrosion; retorque head bolts to specification
Vibration and alignment check: measure and correct crankshaft end-float, coupling alignment, and belt tension (V-belt drives); inspect anti-vibration mounts
Type-general inspection and maintenance points for this equipment category — not model-specific.
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