4. LUBRICATION SYSTEM                              MXU 500 IRS



 INSPECTION
 Temporarily install the oil pump shaft.
 Install the outer and inner rotors into the oil
 pump body.

 Measure the tip clearance.

 Service limit: 0.2 mm (0.008 in)
 Measure at several points and use the
   largest reading to compare the service
   limit.




 Measure the pump body clearance.

 Service limit: 0.25 mm (0.01 in)




 Measure the side clearance with the straight
 edge and feeler gauge.

 Service limit: 0.12 mm (0.0048 in)




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