17
caliper overhaul
6
Caliper Piston Removal:
Place one of the caliper halves, piston side down, on a soft rubber
mat or a small section of inner tube on a flat surface.
Insert a rubber-tipped blow gun chuck nozzle into the banjo port.
While firmly pushing against the caliper half and chuck nozzle,
squeeze the air chuck to force air into the banjo port and unseat
the pistons from the caliper.
Place a rag over the caliper to contain any fluid that may spray.
Continue to force air into the caliper until both pistons unseat. Do
not remove one piston if the other is still seated.
Remove the pistons from the caliper.
Repeat this process for the other caliper half.
CAUTION - EYE HAZARD
Forced air will dislodge the caliper pistons rapidly, which can lead
to bodily injury or damage to the parts. Point the caliper pistons
toward a rubber surface before forcing air into the caliper.
7
Use a pick to remove the piston seals from inside each caliper
body half. Install new seals inside each caliper body half.
Do not scratch the seal gland with the pick.
You can also use Avid DOT Grease or DOT 5.1 or 4 compatible
grease as a lubricant.
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