Caliper Disassembly - Polaris MS4000 Service And Owner's Manual

6. Remove the two caliper mounting bolts and remove the
caliper assembly from the rear hub.

Caliper Disassembly

1. Push brake pad retainer pin inward and slip brake pads past
the edge.
2. Remove both brake pads from the caliper.
3.
Remove
4.
5.
6.
IMPORTANT: Do not remove the caliper pistons with
a pliers. The piston sealing surfaces will become
damaged if a pliers is used.
7.
Remove mounting bracket, pin assembly and dust boot.
Thoroughly clean the brake caliper before disassembly and
prepare a clean work area to disassemble the caliper.
Use low pressure compressed air to remove the pistons
from the caliper.
CAUTION
Use caution and always wear safety glasses
when working with compressed air.
While holding the caliper and covering the pistons with a
shop towel, carefully apply compressed air to the brake line
inlet to force the pistons out from the caliper.
Once the pistons are removed, use a pick to carefully
remove the square O-rings from the caliper. O-rings should
be replaced during caliper service.
BRAKES
9
9.29