2005 Kawasaki KAF400 Mule 600 and Mule 610 4x4 Service Manual, Page 135Get this manual
6-8 ENGINE LUBRICATION SYSTEM Oil Pump, Relief Valve
Oil Pump Removal
Crankcase Remove the crankcase cover (see chapter)Cover Removal in the CamshaftCrankshaft circlip [A] and Remove theinner rotor, outer oil pump assembly (pump cover plate, rotor)
Oil Pump Installation
rotor housing with engine oil for Fill the the pump assembly and circlip initial lubricationin the crankcase Install cover
Install
the circlip [A] with the tapered side out [B], as shown in figure
Oil Pump Inspection