Rear Brake Disc - Polaris Trail Boss 330 2003 Service Manual

6. Install brake lines and tighten to specified torque.
Auxiliary Brake
Line
Banjo Bolt Torque
15 ft. lbs. (21 Nm)
7. Follow bleeding procedure outlined on Pages
9.6--9.7 of this section and refer to system
overview and illustration on Page 9.5.
8. 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.
9.20
Hand 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.
Rear Brake
Disc
2. Use a 0-1² micrometer and measure disc
thickness at 8 different points around perimeter of
disc. Replace disc if worn beyond service limit.
Brake Disc Thickness
New .177-.188² (4.496-4.750 mm)
Service Limit .167² (4.242 mm)
Brake Disc Thickness Variance
Service Limit 002² (.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 .010² (.25 mm)
BRAKES
Measure
Thickness