Auxiliary Brake Testing - Polaris Sportsman 400 Service Manual

MAINTENANCE
AUXILIARY BRAKE ADJUSTMENT (HYDRAULIC)
Use the following procedure to inspect the hydraulic auxil-
iary (foot) brake system and adjust or bleed if necessary.
1. First check foot brake effectiveness by applying a 50
lb. (approx.) downward force on the pedal. The top of
the pedal should be at least 1, (25.4mm) above the
surface of the footrest.
If less than one inch, two things must be examined:
Free Play:
Free play of the brake pedal should be 1/8 - 1/4 inch
(3.2 - 6.35 mm).
If free play is excessive, inspect pedal, linkage, and master
cylinder for wear or damage and replace any worn parts.
Bleeding:
If free play is correct and brake pedal travel is still exces-
sive, air may be trapped somewhere in the system. Bleed
the hydraulic auxiliary brake system in a conventional
manner, following the procedure outlined in the Brake
chapter.

AUXILIARY BRAKE TESTING

The auxiliary brake should be checked for proper adjust-
ment.
1. Support the rear wheels off the ground.
2. While turning the rear wheels by hand, apply the auxil-
iary foot brake. This brake should not stop the wheels
from turning until the lever is half way between its rest
position and bottoming on the footrest.
2.36
- projex@inbox.lv -
1/8" to 1/4"
Free Play
Full Height
Floor
Board Surface
Ill. 1
1" or greater
50 lbs
Auxiliary Foot Brake Pedal
Full
Engagement
Engagement
(1/2 Height)
(Flush)
Floorboard