2008 Polaris ATV Predator 50, Sportsman Outlaw 90 Service Manual, Page 77Get this manual
ENGINETRANSMISSION Transmission Inspection
NOTE: Always wear the appropriate protective gear and use caution when operating press1With transmission components removed, inspect all shaft bearings visually and by feelBearings should roll smoothly, without excessive movement or noiseReplace any bearing that is removed, as the removal process destroys the bearingBearings can be removed using standard blind bearing removerApply lithium grease to outer race of new bearings and press into cover or case by the outer raceDo not press on inner race or bearing will be damagedPress output shaft (A) out of cover with an arbor press or hydraulic press from outside to inside, while supporting cover completely5Inspect sliding gear dogs and dog slots in the mating gears (F) for wear or damageThe edges of dogs and slots should be square and not roundedReplace both sliding gear and mating gears if any edges are rounded or chipped