3.60
9929422 R02 - 2017-2019 ACE 900 Service Manual
© Copyright Polaris Industries Inc.
10. Using an arbor press, install new sprocket in any
orientation to the depth shown in the following
illustration.
MEASUREMENT
Auxiliary Sprocket Installed Depth:
4.9527 ± .0078″ (125.8 ± 0.2 mm)
11. Support crankshaft on V-blocks or on-centers in a
crankshaft stand or lathe. Measure crankshaft runout
where indicated and replace if runout exceeds
maximum listed below.
MEASUREMENT
Crankshaft Maximum Runout:
.001″ (0.025 mm)
12. Visually inspect surface of crankshaft main and
connecting rod journals. Replace crankshaft if any
journal is scratched or pitted.
13. Measure each main journal and connecting rod
journal in two locations, 90 degrees apart. Replace
crankshaft if any journal is worn below the service
limit specification.
i
MAG End
d
PTO Rod Journal
o
Main Journal 1
f
Main Journal 3
a
MAG Rod Journal
g
Main Journal 4
s
Main Journal 2
h
PTO End
14. Refer to the six letters stamped onto the PTO end of
the crankshaft.
15. Use the table below to see if the crankshaft bearing
journals are within specification. If worn past the
service limit, replace the crankshaft assembly.
ENGINE / COOLING SYSTEM
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