Polaris 2009 Trail Boss 330 Service Manual page 189

4. Install caliper and tighten mounting bolts, then
torque mounting bolts to 18 ft.lbs (25 Nm).
5. Install brake line and tighten securely with a line
wrench. Torque the brake lines to 15 ft.lbs (21
Nm).
Hand Brake Line
Brake Line Torque
Banjo Brake Line: 15 ft. lbs. (21 Nm)
6. Follow bleeding procedure outlined in this
chapter.
7. Field test unit for proper braking action before
putting into service. Inspect for fluid leaks and
firm brakes. Make sure the brake is not dragging
when lever is released.
re-check assembly and installation.
18 ft.lbs.
(25 Nm)
Auxiliary Brake Line
If the brake drags,
REAR BRAKE DISC
INSPECTION
1. Visually inspect disc for scoring, scratches, or
gouges. Replace the disc if any deep scratches
are evident.
2. Use a 0-1" micrometer and measure disc
thickness at 8 different points around perimeter of
disc. Replace disc if worn beyond service limit.
Rear Brake
Disc
Brake Disc Thickness
New .150-.165" (3.81-4.19 mm)
Service Limit .140" (3.55 mm)
Brake Disc Thickness Variance
Service Limit .002" (.051 mm)
difference between measurements
3. Mount dial indicator and measure disc runout.
Replace the disc if runout exceeds specifications.
Brake Disc Runout
Service Limit .010" (.254 mm)
BRAKES
Measure
Thickness
9.21