Brake Caliper Piston, Removing And Installing: Installing

-- The surface of the piston and seal must only be cleaned with mineral spirits or commercially available and then dried.

-- Install new seal in brake caliper.

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

Fig 1: Placing New Protective Cap On Brake Pistons

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

Fig 2: Identifying Pressure Nut Installed On Spindle Until Dimension Achieved

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-- Insert protective cap in brake caliper groove. Use the : 3409  to do this.

Fig 3: Identifying Inner Sealing Lip Of Protective Boot Inserted In Groove In Brake Caliper With Trim Removal Wedge 3409

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-- Carefully slide brake piston into brake caliper. Move brake piston when doing so. Brake piston must be guided over pressure nut, this 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 4: 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 5: Identifying Pressure Nut Clockwise

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

Fig 6: Ensuring Protective Cap Is Seated Against Brake Caliper Housing

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-- Press the piston into the brake caliper by hand

Fig 7: Pressing Piston Into Brake Caliper

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