Symptoms
Possible cause
Foundation bolts loose
Piston to head
clearance too small
Piston or piston nut
loose
Bearings need
replaced
Liquid carry-over
Lubrication
inadequate
Lubrication excessive
Oil viscosity incorrect
Wrong type oil
Oil filter plugged
Water inlet
temperature to high
Ambient temperature
too high
Cylinder, head, cooler
dirty
Discharge
temperature too high
H301/302 HSR Compressors | Rev. 2.2 | 113