Polaris RANGER 500 2018 Service Manual page 267

3. Remove the oil pump sprocket bolts
Discard the bolts and replace with new for assembly.
Remove the sprockets and chain from the engine.
4. Inspect the oil pump chain for worn or missing rollers
or damage. Chain should be replaced as a set with
sprockets if sprocket teeth are worn.
NOTE
The larger oil pump sprocket mounts to the balance
shaft extension, the smaller oil pump sprocket mounts
to the oil pump shaft.
9928485 R01 - 2017-2018 RANGER 500 / 570 Service Manual
© Copyright Polaris Industries Inc.
e
and washers. 5. Remove the upper oil pump sprocket spacer
6. Remove the bolts
the crankcase.
7. Grasp the oil pump shaft
remove the shaft, oil pump cover and inner oil pump
gerotor. This will prevent the oil pump drive pin from
falling out and into the crankcase.
The gerotor set has (2) orientation dots that must be
ENGINE / COOLING SYSTEM
t
securing the oil pump cover to
y
and pull it outward to
NOTE
installed inward upon assembly
r
.
3
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