Polaris 1999 Sportsman 400 Service Manual page 391

BRAKES
385
NOTE
Measure the brake pad lining as well
as the me/a! backing plate.
8. Remove both brake pads (Fig ure 6) from the
caliper.
9. Inspect the brake pads (F igure 7) for uneven
wear, damage or grease contaminat ion. Replace the
pads as a set, if
necessary.
NOTE
When purchasing new pads. check
with the dealership to make s ure the
friction
compound of the new pad is
compatible with the disc material. Re-
l1l 0l'e any
roughnessfrom tlre backs
of
the /lew pads with a fi ne-cut file.
10. Meas ure the thickness of each brake pad with a
ruler or vernier cali per (F igu re 8 ). Rep lace the
brake pads if the thickne ss of either pad is worn to
the service limit in Table
I.
11 . Inspect the brake disc for nicks, corrosion and
radial groove damage. If damaged. remove the
brake disc as described in this chapter.
12. Check the end of the piston (F igure 9) for tluid
leakage. If the seal is damaged and/or if there is
fluid leakage, overhaul the brake caliper as de-
scr ibed in this chap ter.
13. Partially move the mo unting bracket away
from the caliper body. Move the rubber boots away
and apply a light coat of high-temperature grease to
the mounting bracket pins (F igure 10). then move
the mounting bracket back into place.
14. Compress the mounting
bracket
to make sure
the rubber boot and bushing arc fully seated .
o