3
9850043 R01 - 2017-2021 RANGER 500 / 570 Service Manual
© Copyright Polaris Inc.
3.133
ENGINE ASSEMBLY - LOWER END
CRANKCASE ASSEMBLY – PTO SIDE
1. Lubricate all crankcase bearings with engine oil.
Clean sealing surface to remove all oil sealant.
NOTICE
Apply Loctite® 641 to the inner race of each of the
crank bearings.
2. Place crankcase on a sturdy work bench.
3. Carefully set the PTO crankcase onto the PTO side
of the crankshaft.
4. Align the connecting rod with the cylinder area of the
crankcase.
5. Install the crankshaft removal / installation tool on to
the PTO side crankcase.
Crankshaft Removal / Installation Tool
PU-50784
• Install plate
q
over adapter
w
.
• Evenly attach the assembly
q
onto the PTO side
crankcase flange using the four bolts provided with
tool.
• Place the nut and large washer onto the crankshaft
installation screw
e
.
• Insert the crankshaft installation screw through the
threaded portion of the adaptor
w
.
• Fully thread the crankshaft installation screw into the
clutch bolt threads of the crankshaft.
• With the help of an assistant holding the crankshaft,
firmly hold the crankshaft installation screw with a
wrench while tightening the large nut against the
adaptor
w
.
6. With the help of an assistant, slowly tighten the nut
until the crankshaft is completely seated into the
crankcase bearings.
ENGINE / COOLING SYSTEM
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