2009 Polaris Scrambler 500 4x4 2x4 factory service manual, Page 146Get this manual
CLUTCHING NOTE: Pinch the sheaves lightly together with clamp to prevent the belt from being pushed into the driven sheave1Place straight edge on top of the belt between drive and driven clutch2Push down on drive belt until it is lightly tensioned3Measure belt deflection as shown in photo
NOTE: If belt deflection is out of specification, adjust by removing or adding shims between the driven clutch sheavesRemove shims to decrease belt deflection Add shims to increase belt deflection See DRIVEN CLUTCH DISASSEMBLYINSPECTION, Pages 6.196.20NOTE: At least one shim must remain between the inner and outer sheave of the driven clutchIf proper belt deflection cannot be obtained, measure drive belt width, length, and center distance of drive and driven clutch, outlined in this section; all have an effect on belt deflectionG 3To remove drive belt: apply brake, pull upward and rearward on belt to open driven clutch sheaves, pull out and down on belt to slip over the driven clutch outer sheaveProjected Belt Width