 printable version
Removal and installation of the piston to the brake caliper FN 3
| Fig. 6.25. The components of the brake caliper 1 - cap; 2 - bleeder plug 10 Nm; 3 - caps; 4 - a directing bolt, 30 Nm; 5 - bearing sleeve; 6 - brake caliper; 7 - bracket-holder; 8 - retaining spring; 9 - a sealing ring; 10 - the piston; 11 - a protective cap
|
NOTE Carrying out repairs, install all the repair kit. To clean the brakes, use only alcohol. On the brake cylinders, pistons and seals, apply a thin coat of assembly paste G 052 150 A2. |
Withdrawal Press out the piston from the brake caliper with compressed air.
Place a wooden panel to prevent damage to the piston (Fig. 6.26).
Remove the protective cap with a wedge from the brake caliper 3409 (Fig. 6.27).
When lifting, make sure that the surface of the cylinder was not damaged.
Setting Surface of the piston and O-rings clean only alcohol and then dried. Before installing the piston and apply a thin coat of o-ring assembly paste G 052 150 A2. Insert O-ring in the brake caliper.
| Fig. 6.29. Installing the cap in the assembly tool
|
Place the protective cap A assembly tool T10146 / 6 1 (Fig. 6.29).
The protective cap with the mounting of the tool 1 and a device for embedding the pistons 2 on the brake caliper so that it rests on the entire perimeter of the brake caliper (Fig. 6.30).
Checking landing protective cap
| Fig. 6.31. Checking the strength of a protective cap
|
The protective cap should sit so firmly that it can not be removed from the support arm (Fig. 6.31).
Lightly press the piston into the cap and to fix it in position, for example by means of the wedge 2 (Fig. 6.32). The piston has not warped, as otherwise possible damage to the seal. Vent cap with compressed air (max. 3 bar) 1. In this case the protective cap put on the piston (Fig. 6.32).
| Fig. 6.33. Installation of the piston in the brake caliper
|
Push the plunger with a device for the embedding of the pistons in the brake caliper 1 (Fig. 6.33). This outer edge seal protection cap enters into a groove on the piston.
| 
