2008 Polaris Sportsman 700/800/700 X2 EFI Service Manual, Page 213Get this manual
FINAL DRIVE FRONT GEARCASECENTRALIZED HILLIARD W ACTIVE DESCENT CONTROL
Operation
The AWD switch may be turned on or off while the vehicle is moving, however, AWD will not enable until the engine RPM drops below 3100Once the AWD is enabled, it remains enabled until the switch is turned offEngage the AWD switch before getting into conditions where the front wheel drive may be neededIf the rear wheels are spinning, release the throttle before switching to AWDRollers
Ring Gear
CAUTION
Switching to AWD while the rear wheels are spinning may cause severe drive shaft and gearcase damageAlways switch to AWD while the rear wheels have traction or are at restWith the AWD switch off, the vehicle drives through the rearwheels only (2 wheel drive)When the AWD is enabled, the front drive acts as an on-demand AWD systemThis means, the front drive will engage once the rear wheels have lost traction, and will remain engaged until the torque requirement goes away (i.erear wheels regain traction)Roll Cage
CAUTION
If the rear wheels are spinning, release the throttle before turning the AWD switch onIf AWD is engaged while the wheels are spinning, severe drive shaft and clutch damage could resultAWD Disengagement: Once the rear wheels regain traction, the front wheels will return to the "over-running" condition.The vehicle is now back to rear wheel drive until the next loss of rear wheel traction occurs