Observations & action taken for crankpin repair of Deutz MWM TBG632V16
i) Our two technicians along with a portable onsite crankshaft grinding machine visited Iran in short notice.
ii) On dimensional inspection of the crankpin it was observed that only one number of crankpins was damaged and having an ovality of 0.2 mm.
iii) All other crankpins were also checked for dimensional and were found within a limit.
iv) As a matter of protocol the damaged crankpin was also subject to crack detection by MPI.
v) The hardness was also checked and no abnormality was observed.
vi) The deflection of the complete crankshaft of Deutz MWM TBG632V16 engine was checked and was observed within limits.
vii) The damaged crankpin was ground to the undersize of 0.5 mm maintaining the tolerance strictly as per the manufacturer manual.