2006 Arctic Cat DVX 400 Service Manual, Page 58Get this manual
NOTE: Do not attempt to disassemble the oil pump housing assemblyIt is serviceable only as complete unit
KEY 1234
Nut Washer Driven Gear Inner Race
Pin Spring Bearing Pin Balancer 0739-185
2Apply engine oil to the mating surfaces of the inner and outer rotors; then align the groove (5) of the inner rotor with the pin (4) of the shaft and install the inner rotor3Install the outer rotor
2Separate the driven gear from the driven gear inner race and account for four springs and two pins3Measure the free length of the springsIf any spring free length is less than 10.3 mm (0.41 in, replace all four springs