2003 Polaris ATV Trail Boss 330 Factory Service Manual, Page 130Get this manual
CLUTCH 5Torque spider to specification using the holding fixture and spider toolTorque with smooth motion to avoid damage to the stationary sheaveRefer to Page 6.1 for torque specificationCAUTION: Be sure the spider spacer washers are fully seated in the recessed area in the spiderAny misalignment will alter clutch balanceInverting the clutch while initially tightening the spider will help position the washers
DRIVE BELT TENSION
Straight Edge 18 (28.5 mm)
Rotation
Belt Deflection (Tension): 18 (2.9 cm)14 (3.2 cm)