6
9850060 R02 - 2020-2021 850 AXYS™ Long Track Snowmobile Service Manual
© Copyright Polaris Inc.
6.1
FINAL DRIVE / BRAKE SYSTEMS
CHAPTER 6
FINAL DRIVE / BRAKE SYSTEMS
GENERAL INFORMATION. . . .. . . .. . . .. . . .. . . .. . . .. . . .. . . .. . . .. . .. .. . . .. . . .. . . .. . . .. . ... . ... . . .. . . .. . . .. . 6.3
DRIVE GEARS . . .. . . .. . ... . ... . . .. . . .. . . .. . . .. . . .. . ... . ... . . .. . . .. . . .. . . .. . ... . ... . ... . .. .. . ... . ... . .. 6.3
DRIVE CHAINS. . .. . . .. . .. .. . . .. . . .. . . .. . . .. . ... . ... . . .. . . .. . . .. . . .. . ... . ... . ... . .. .. . ... . ... . ... . ... . . 6.3
CHAINCASE SPROCKET RATIO SPEED CHART – AXYS (7.764 CD). .. . . .. . . .. . . .. . . .. . . .. . . .. . . .. . . . 6.4
GEARING STOCK SETTINGS - 2020 . . ... . .. . . .. . . .. . . .. . . .. . . .. . . .. . . .. . . .. . . .. . . .. . .. .. . . .. . . .. . . .. . 6.5
GEARING STOCK SETTINGS - 2021 . . ... . .. . . .. . . .. . . .. . . .. . . .. . . .. . . .. . . .. . . .. . . .. . .. .. . . .. . . .. . . .. . 6.6
GEARING CHANGE REPROGRAMMING. ... . ... . .. . . .. . . .. . . ... . ... . ... . .. . . .. . . .. . . .. . . ... . ... . .. . . . 6.7
CHAINCASE SERVICE . .. . . .. . . .. . . .. . . .. . . ... . ... . .. . . .. . . .. . . .. . . ... . ... . .. . . .. . . .. . . .. . . .. . . .. . . .. . . . 6.9
CHAINCASE ASSEMBLY VIEW . .. . . .. . . .. . . .. . . .. . ... . .. .. . . .. . . .. . ... . ... . ... . ... . . .. . . .. . ... . ... . .. 6.9
DRIVE CHAIN TENSION ADJUSTMENT . ... . ... . ... . .. . . .. . . ... . ... . ... . ... . ... . .. . . .. . . ... . ... . ... . .6.10
CHAINCASE OIL LEVEL CHECK .. . .. . . .. . . .. . . ... . ... . ... . .. . . .. . . .. . . .. . . ... . ... . .. . . .. . . .. . . .. . . ..6.10
CHAINCASE OIL CHANGE - PUMP METHOD . .. . . .. . . .. . . .. . . .. . . .. . . .. . . .. . . .. . . .. . ... . . .. . . .. . . .. . 6.11
CHAINCASE OIL CHANGE - COVER DRAIN METHOD . . ... . ... . ... . ... . ... . ... . .. . . ... . ... . ... . ... . .6.11
CHAINCASE COVER GASKET ORIENTATION . . . .. . . .. . . .. . . .. . . .. . .. .. . . .. . . .. . . .. . ... . ... . ... . . .. .6.12
CHAINCASE COVER TORQUE PATTERN . . .. . . .. . . .. . ... . .. .. . . .. . . .. . . .. . ... . ... . ... . . .. . . .. . . .. . ..6.13
RIGHT FENDER CHAINCASE ACCESS SCREWS. . ... . ... . ... . . .. . . .. . . .. . ... . ... . ... . ... . ... . . .. . ..6.13
CHAINCASE DISASSEMBLY . . .. . . .. . ... . ... . . .. . . .. . . .. . . .. . ... . ... . ... . . .. . . .. . . .. . ... . ... . ... . ... .6.13
CHAINCASE COVER SERVICE . .. . . .. . . .. . . .. . . .. . ... . . .. . . .. . . .. . . .. . . .. . ... . ... . . .. . . .. . . .. . . .. . ..6.16
CHAINCASE ASSEMBLY . .. . . .. . . .. . . ... . ... . ... . .. . . .. . . .. . . .. . . .. . . ... . .. . . .. . . .. . . .. . . .. . . .. . . .. . .6.16
CHAINCASE HOUSING REMOVAL . . .. . . .. . . ... . ... . .. . . .. . . .. . . .. . . .. . . ... . ... . .. . . .. . . .. . . .. . . .. . . .6.18
CHAINCASE HOUSING INSTALLATION . . ... . ... . . .. . . .. . . .. . ... . ... . ... . ... . . .. . . .. . ... . ... . ... . ... .6.21
CHAINCASE VENT LINE ROUTING . . ... . ... . ... . ... . ... . ... . ... . ... . ... . .. . . .. . . ... . ... . ... . ... . .. . .6.22
QUICKDRIVE LOW INERTIA DRIVE SYSTEM . .. . . .. . . ... . ... . ... . .. . . .. . . .. . . .. . . ... . ... . .. . . .. . . .. .6.23
QUICKDRIVE ASSEMBLY VIEW... . .. . . .. . . .. . . .. . . .. . . .. . . .. . . .. . . .. . . .. . . .. . . .. . . .. . . .. . . .. . . .. . . ..6.23
QUICKDRIVE DRIVE BELT / SPROCKET REMOVAL . . .. . . .. . .. .. . . .. . . .. . . .. . . .. . ... . ... . . .. . . .. . . ..6.24
QUICKDRIVE DRIVE BELT / SPROCKET INSTALLATION.. . .. . . ... . ... . ... . ... . ... . .. . . .. . . ... . ... . ..6.25
QUICKDRIVE BACKER PLATE ASSEMBLY VIEW . .. . . .. . . .. . ... . ... . ... . ... . . .. . . .. . ... . ... . ... . ... .6.27
QUICKDRIVE BACKER PLATE REMOVAL. . .. . . .. . . ... . ... . .. . . .. . . .. . . .. . . .. . . ... . .. . . .. . . .. . . .. . . ..6.28
QUICKDRIVE BACKER PLATE INSTALLATION .. . .. . . .. . . .. . . .. . . .. . . ... . .. . . .. . . .. . . .. . . .. . . .. . . .. . .6.29
DRIVESHAFT SERVICE . .. . . ... . ... . ... . ... . .. . . .. . . .. . . ... . ... . ... . .. . . .. . . .. . . .. . . ... . ... . .. . . .. . . .. .6.30
DRIVESHAFT ASSEMBLY VIEW. .. . . .. . . .. . . .. . . .. . ... . .. .. . . .. . . .. . ... . ... . ... . ... . . .. . . .. . ... . ... . .6.30
DRIVESHAFT REMOVAL . .. . . .. . . .. . . .. . . .. . . ... . .. . . .. . . .. . . .. . . .. . . .. . . .. . . .. . . .. . . .. . . .. . . .. . . .. . .6.31
DRIVESHAFT INSTALLATION . . ... . .. . . .. . . .. . . .. . . .. . . .. . . .. . . .. . . .. . . .. . . .. . . .. . . .. . . .. . . .. . . .. . . ..6.32
JACKSHAFT SERVICE . .. . . .. . . .. . . .. . . ... . ... . ... . .. . . .. . . .. . . .. . . ... . ... . .. . . .. . . .. . . .. . . .. . . .. . . .. . .6.33
JACKSHAFT ASSEMBLY VIEW. . . .. . . .. . . .. . . ... . .. . . .. . . .. . . .. . . .. . . .. . . .. . . .. . . .. . . .. . . .. . . .. . . .. . .6.33
JACKSHAFT REMOVAL .. . . .. . ... . . .. . . .. . . .. . . .. . . .. . ... . ... . . .. . . .. . . .. . . .. . . .. . ... . ... . .. .. . . .. . ..6.34
JACKSHAFT INSTALLATION . . ... . ... . ... . . .. . . .. . . .. . ... . ... . ... . ... . . .. . . .. . . .. . ... . ... . ... . ... . . ..6.34
BRAKE SYSTEM . ... . ... . . .. . . .. . ... . ... . ... . ... . ... . . .. . ... . ... . ... . ... . ... . ... . . .. . ... . ... . .. . . ... . ...6.35
BRAKE SYSTEM GENERAL NOTES .. . . .. . . .. . . ... . .. . . .. . . .. . . .. . . .. . . .. . . ... . .. . . .. . . .. . . .. . . .. . . .6.35
BRAKE SYSTEM INSPECTION. ... . .. . . ... . ... . ... . ... . ... . .. . . .. . . ... . ... . ... . ... . .. . . .. . . .. . . ... . ..6.35
BRAKE SYSTEM BLEEDING .. . ... . .. . . ... . ... . ... . ... . ... . .. . . .. . . ... . ... . ... . ... . .. . . .. . . .. . . ... . ..6.36
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