Gearcase Disassembly And Inspection - Polaris Sportsman 850 Service Manual

FINAL DRIVE
GEARCASE DISASSEMBLY AND
INSPECTION
Pinion and ring gear shimming information is NOT
provided. The components are matched at the factory,
which requires special OEM tooling in order to properly
assemble and shim the gears.
In the event damage to the gears or housing requires
replacement, the entire assembly must be replaced.
1. Drain and properly dispose of used gearcase
lubricant.
2. Remove the (8) screws from the rear gearcase
cover.
3. Lift the gearcase cover off the main gearcase half
and note the shim between the cover and the ring
gear.
4. Remove the ring gear from the main gearcase half.
7.66
NOTE
5. Inspect the ring gear teeth for chipped, worn, or
broken teeth.
6. Inspect the pinion shaft by rotating the assembly in
the gearcase housing while checking for any
looseness or roughness. Inspect the pinion gear
teeth for chipped, worn, or broken teeth.
In the event damage to the gears or housing requires
replacement, the entire assembly must be replaced.
7. Inspect the gearcase bearings and seals. Proceed to
"Gearcase Bearing and Seal Replacement" if
components require service. Gearcase Bearing and
Seal Replacement, page 7.67
NOTE