Brake Caliper Piston, Removing And Installing: Installing

-- Install new seal in brake caliper.

Fig 1: Identifying Old Seal From Brake Caliper With Trim Removal Wedge 3409, Removal/Installation

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-- Place new protective cap on brake pistons as shown.

Fig 2: Placing New Protective Cap On Brake Pistons

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-- Install pressure nut to dimension -a- 15 mm.

Fig 3: Identifying Pressure Nut Installed On Spindle Until Dimension Achieved

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-- Insert the protective cap into the brake caliper groove using the Trim Removal Wedge 3409 to do so.

Fig 4: Identifying Inner Sealing Lip Of Protective Boot Inserted In Groove In Brake Caliper With Trim Removal Wedge 3409

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-- Carefully slide the brake piston into the brake caliper. Move the brake piston when doing so. The brake piston must be guided over the thrust nut, which is only possible in four positions.

-- After brake piston has been guided onto pressure nut, press it as far as stop into brake caliper.

Fig 5: Pressing Piston Into Brake Caliper Until It Contacts Pressure Nut

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-- Install the pressure nut clockwise as far as the stop.

Fig 6: Identifying Pressure Nut Clockwise

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-- Make sure the rubber makes contact around the brake caliper housing -arrows-

Fig 7: Ensuring Protective Cap Is Seated Against Brake Caliper Housing

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-- Press the piston into the brake caliper by hand

Fig 8: Pressing Piston Into Brake Caliper

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