2011 Polaris Ranger RZR ATV Service Manual, Page 45Get this manual
MAINTENANCE SUSPENSION (STANDARD)
Spring Preload Adjustment
The front and rear shock absorber springs are adjustable by rotating the adjustment cam to change spring tension preload
SUSPENSION (FOXTM)
Spring Preload Adjustment
The front and rear shocks have preload adjustmentSuspension spring preload may be adjusted to suit different riding conditions or vehicle payloads
Uneven adjustment may cause poor handling of the vehicle, which could result in an accident and serious injury or deathAlways adjust both the left and right spring preloads equallySuspension Spring Adjustment 12Position the vehicle on level surface and stop the engineRaise and safely support the front or rear of the vehicle off the ground to allow the suspension to fully extend21
Uneven adjustment may cause poor handling of the vehicle, which could result in an accident and serious injury or deathAlways adjust both the left and right spring preloads equallyRaise and safely support the front or rear of the vehicle off the ground to allow the suspension to fully extendLoosen the upper jam nut adjustment ringTurn the lower adjustment ring (1) clockwise to increase preload or counter-clockwise to decrease preloadFactory Preload Setting 3.5 in(8.9 cm)