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Disc Pads: Installation

  1. Using a cylinder brush, clean guide surface and support surface in caliper. Siphon sufficient fluid from master cylinder reservoir to prevent overflowing. Press pistons to bottom of bores.
  2. On rear calipers, ensure machined position of piston face makes a 20 degree angle with caliper wall. See Fig 1 . Rotate piston with tool (341050), if necessary.
  3. On ATE front calipers, install disc pads, shims (if required), cross spring and retaining pins. After installation, depress brake pedal several times to seat pads.
  4. On Girling calipers, adjust shoulders of pistons so that guards are located at machined shoulders of piston. If necessary, use guard as adjusting template.
  5. Install pads, cross spring, and retaining pins. Replace fastener, bending straight side. After installation, depress pedal several times to seat pads.
Fig 1: Piston Alignment for Rear Brake Calipers Use template to achieve 20 degree angle.
G50016