2012 Sportsman 400/500 and EFI Tractor Service Manual 9923412, Page 100Get this manual

2012 Sportsman 400/500 and EFI Tractor Service Manual 9923412, Page 100

ENGINE 4Measure the distance from the PTO crankcase mating surface to the bearing using the same method outlined in Step
of the straightedge and record 1Install the seal from the outside of the crankcase (water pump side) with the spring facing
inward, toward the pump shaft bearing2Drive or press the seal into place using 25 mm (.985") seal driver, until flush with
the outer edge of the seal bore3Lubricate the seal lip with grease CrankshaftCounter BalanceOil Pump Installation Lubricate
all bearings with clean engine oil before assemblyUse the CrankshaftWater Pump Installation Kit (PN 2871283) to prevent damage
to the crankshaft and main bearings during installation1Install the crankshaft into the PTO side crankcaseScrew the threaded
rod into the crankshaft until the threads are engaged minimum of one inch (25.4mm)2Install the collar, washer, and nut onto
the threaded rodHold the crankshaft and tighten the nut to draw the crankshaft into the main bearings until fully seatedLoosen
the nut and remove the threaded rod from the crankshaftIf removal is difficult, install two nuts on the end of the threaded