3.58
9850045 R01 - 2020-2021 RANGER 1000 Service Manual
© Copyright Polaris Inc.
CRANKSHAFT SERVICE / INSPECTION
REMOVAL
1. Remove the balance shaft. Refer to Balance Shaft
Service page 3.57.
2. For ease of assembly, mark each connecting rod and
end cap.
3. Loosen, remove and discard the four connecting rod
bolts
q
. Remove the end caps from the crankshaft.
4. Carefully lift the crankshaft
w
out of the crankcase.
5. Remove the cam chain
e
, oil pump drive chain
t
and PTO main seal
r
from the crankshaft.
INSPECTION
1. Inspect the crankshaft gear
u
and auxiliary sprocket
y
for broken or worn teeth.
2. If the crankshaft gear or sprocket is damaged, the
crankshaft assembly must be replaced.
3. Support crankshaft on V-blocks or on-centers in a
crankshaft stand or lathe. Measure crankshaft run-out
and replace if run-out exceeds maximum listed below.
MEASUREMENT
Crankshaft Maximum Runout:
Less than .001″ (0.025 mm)
4. Visually inspect surface of crankshaft main and
connecting rod journals. Replace crankshaft if any
journal is scratched or pitted.
ENGINE / COOLING / EXHAUST
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